sys001-02_00_flusarc_(en)
TRANSCRIPT
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Gas Insulated Switchgear
AREVA T&D
FLUSARC Switchgear36 kV - 630 A - 25 kA
Technical Characteristics
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Table of contents
1 Overview...............................................................................................................5
1.1 General description ....................................................................................................................................................5
1.2 Main characteristics ..................................................................................................................................................5
2 Standards..............................................................................................................6
2.1 Degree of protection against accidental contact and ingress of foreign objects .........................................6
2.2 Environmental and operating conditions...............................................................................................................6
2.3 Standards and approvals..........................................................................................................................................62.4 Maximum number of operation ...............................................................................................................................7
3 Technical data.....................................................................................................8
3.1
Electric data common to all the s witchgear .........................................................................................................8
3.2 Switching unit for trafo protection electrical data...............................................................................................93.3 Circuitbreaker un it electric al data.........................................................................................................................9
4 Dimension and weights................................................................................ 10
4.1 FLUSARC 36 kV .........................................................................................................................................................10
5 Product description....................................................................................... 12
5.1 Incoming/outgoing unit (C).....................................................................................................................................16
5.2 Transformer protection un it (T1)...........................................................................................................................16
5.3 Fuse selection table .................................................................................................................................................175.4 Unit with vacuum circuitbreaker (CB) ................................................................................................................17
5.5
Direct incoming/outgoing unit (R).........................................................................................................................18
5.6 Outdoor switchgear..................................................................................................................................................18
5.7 Accessories................................................................................................................................................................19
5.7.1 Operation counter.....................................................................................................................................................19
5.7.2 Undervoltage release (uvr) .....................................................................................................................................19
5.7.3 Undervoltage release control card........................................................................................................................19
5.7.4 Shunt closing release ..............................................................................................................................................20
5.7.5 Shunt opening release ............................................................................................................................................20
5.7.6 Demagnetization opening solenoid ......................................................................................................................20
5.7.7 Toroidal current transformer..................................................................................................................................20
5.7.8 Gear motor for loading springs..............................................................................................................................21
5.7.9 Line control gear motor ...........................................................................................................................................21
5.7.10
Auxiliary contacts .....................................................................................................................................................21
5.7.11 Voltage presence signal lamp................................................................................................................................22
5.7.12 Loaded or unloaded closing springs signalLing contact ................................................................................22
5.7.13 Diode rectifier bridge ...............................................................................................................................................22
5.7.14 Protection unit...........................................................................................................................................................22
5.7.14.1 Protection relay VPRSP1 .......................................................................................................................................22
5.7.14.2 Protection relay VPRP1..........................................................................................................................................22
5.8 Operation....................................................................................................................................................................23
5.8.1 Safety system............................................................................................................................................................23
5.9 Interlocks for funct ions C and T1..........................................................................................................................25
5.10 Interlocks for funct ion CB.......................................................................................................................................25
5.11 Operator panels ........................................................................................................................................................265.12 Operating accessories.............................................................................................................................................28
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5.13 Cables connnection .................................................................................................................................................28
6 Ecological considerations..........................................................................30
7 Switchgear installation.................................................................................31
8 Shipping..............................................................................................................33
8.1 Packing.......................................................................................................................................................................33
8.2 Transport....................................................................................................................................................................33
8.3
Handling.....................................................................................................................................................................33
9 Notes...................................................................................................................35
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1 Overview
1.1 General description
The FLUSARC apparatuses are medium
voltage switchgear, suitable for 36 kV
rated voltage and specifically conceived for
the secondary distribution substations in
M.V. with either ring or radial type net
works.
They indeed allow to connect two up to
five lines of the M.V. network, and assure
both the power supply and the protection
of M .V./L.V. transformers for L.V. users.The FL USARC switchgear belong to the
protected type fo r indoor an d outdoor use,and use the low pressure ga s SF
6both for
insulating the switchgear itself and for in
terrupting the electric arc within switchdisconnector. The CB is of vacuum type.
Assembly view of some possible FLUSARC switchgear configurations
1.2 Main characteristics
The FL USARC switchgear assures a per
sonnel high safety level, obtained by using
the fo llowing precautions:
> direct earthing of the switchgear whole
structure;> total segregation of the live parts,
which are contained inside a stainlesssteel housing, hermetically sealed and
filled with gas SF6;
> accessibility to the fuses without any
danger, with preventive earthing of the
two ends;
> availability of earthing switches with
making capacity;
> mechanical interlocks, granting the
exact sequence of the operations.
Using the gas SF6prevents any possible
arising of fires. A safety valve against
overpressures, situated under the switch
gear, allows the gas to flow out, so avoid
ing any possible danger for the operator,
while a pressure gauge allows the con
tinuous monitoring of the pressure inside
the metal hou sing.
The insulation with gas SF6of all the parts
under voltage besides reduces to the
minimum the possibility of faults between
the phases or toward the earth.
With low pressure gas (0.3 bar, relative
pressure), the sealing systems are simple
and reliable, so granting a good operation
for at least 20 years, without needing to
reset the pressure.
The operation i s anyway granted, with un
changed characteristics, even with a rela
tive p ressure equal to 0. The switchgear is
insensitive to the outside ambient condi
tions and therefore particularly fit for being
installed in presence of industrial po llution
or of a salty, wet climate. Besides, those
switchgear can al so operate fully im
merged in water for a given time.
All the control operations are executed by
acting on the switchgear front side through
easy and functional devices, with me
chanical signalings about the position of
the different components. Clear instruc
tions for executing the operations are re
ported on the switchgear front side.
The switchgear have a limited height and
small di mensions. Consequently, the fo l
lowing advantages are assured:
> very small dimensioned installation
rooms (such as cabins, cellars, mobile
substations, etc.);
> small and cheap infrastructures;
> low costs for transport and installation.
The FLUSARC switchgear actually do not
need any maintenance interventions, and
neither settings or gas fillings have to be
executed during the apparatus whole l ife
time.
KJC0100 KJC0200
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2 Standards
FLUSARC switchgear units are:
> metalenclosed
> SF6insulated> prefabricated and typetested
> arc resistant
2.1 Degree of protection againstaccidental contact and ingress
of foreign objects
Main electric circui ts IP67
Fuses compartment IP4X
Operating mechanisms IP3X
Cables conne ction compartment IP3X
2.2 Environmental and operating conditions
FLUSARC switchgea r uni ts must be in
stalled and operated in normal conditions
as specified in EN 60694 or IEC 60694.
Operation under conditions other than
these is only permissible after consultation
with the manufacturer and obtaining writ
ten consent.
Ambient conditions
Temperature class "minus 5 indoors
Average value over 24 hours (max.) C 35
Maximum instal lation altitude above sea level m 1000
Insulating gas
Type Sulphur hexafluo ride (SF6)
Rated pressure pre at 20 C MPa 0.03
Rela tive leakage rate Frel
% < 0.1 p.a.
Should any operating conditions in particular environments, having different characteristics
with respe ct to the above mentioned ones, be requested, contact AREVA, who wil l provide
to customi ze (wherever possible) the apparatus, according with the Customer require
ments.
2.3 Standards and approvals
The FL USARC switchgears fully comply
with the IEC 62271100, IEC 62271200
and IEC 60694 Standards.
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2.4 Maximum number of operation
In the following curves, the admitted
number of operations (clos
ing/opening cycles) of the vacuum
circuit breakers, according with the
breaking current (rms), is indicated.
36 kV 630 A
Breaking current in kA, rms
Numberofoperations
KJC5600
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8888
3 Technical data
3.1 Electric data common to all the switchgear
Rated voltage Ur[kV] 36
Rated power frequency withstand vol tage (50/60 Hz 1 min.):
a) towards the ground and between phases
b) across the isolating distance
Ud[kV] a) 70
b) 80
Rated lightning impulse withstand voltage:
a) towards the groun d and between pha ses
b) across the isolating distance
Up[kV] a) 170
b) 195
Internal arc withstand current 1 s [kA] 16
Continuity of service
LSC2A
(according to IEC 62271 200)
Rated current Ir[A] 630
Breaking capacity of active circuits (cos. 0.7) and ring cir
cuits at 0.3 VnI1I2a[A] 630
Breaking capacity of noload transformers I3[A] 25
Breaking capacity of noload lines/cables I4aI4b[A] 25
Short time withstand current 1 s on main circuits and earth
circuits
Ik[kA] 16 / 25
Switch disconnector making capacity and earthing switch
making capacityIma[kA] 40 / 62.5
Water proof test 0,3 bar [kV] 70 kV x 1 min. Vn x 24 hours
Electrical life test 100 operations CO at 630 A
Rated filling pressure Pme3) 130 kPa (absolute at 20 C)
Ambient temperature 25 C / +55 C
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3.2 Switching unit for protection electrical data
Transfer current I4[A] 800
Normal current of the fuse [A] 63
Short circui t making current [kA] 78.75
Short circui t breaking current [kA] 31.5
Short time current on earthing switch downstream of fuses Ik [kA]
3.3 Circuit-breaker unit electrical data
Breaking capacity of CircuitBreaker [kA] 16/25
CircuitBreaker rated switching sequence O 0,3 s CO 3 min CO 3 min CO
Number of mechanical operations of switch disconnector
and e arthing switchn 1000
Number of mechanical operations of CircuitBreaker n 2000
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10101010
4 Dimension andweights
4.1 FLUSARC 36 kV
Function Number of panelsHeight
[mm]
Depth
[mm]
Width
[mm]Weights approx. [kg]
In / Out switchgear
385CCC 3panel unit 36 kV 1720 920 1200
425 ()
Switching and transformer protection switchgear with fuse
410T1C 2panel unit 926
455 ()
430T1CC 3panel unit 1276475 ()
510T1CCC 4panel unit 1626
555 ()
580T1T1CC 4panel unit 1839
625 ()
640T1T1CCC 5panel unit
36 kV 1720 920
2189685 ()
Modular switchgear
200C Singlepanel 500
245 ()250
T1 Singlepanel 580
R Singlepanel 500185 ()
RE Singlepanel 500190 ()
256CB Singlepanel
920
550296 ()
M Singlepanel
36 kV 1720
1200 900 250
Ring main unit with CB
440CBCC 3panel unit 36 kV 1720 920 1200
445 ()
() motorized operating mechanism
Legend
C
CB
R
Re
T1
M
Feeder with switchdisconnector
Feeder with removable VEIVacuumL circuitbreaker
Direct incoming
Direct incoming with earthing switch
Feeder with switchdisconnector and fuse holder
Busbar metering (CT VT)
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11111111
The dimension are expressed in mm.
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- - -
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KJC6200
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5 Productdescription
The FLUSARC switchgear consists of a
stainless steel metal housing, suitably
welded in order to assure the sealing of
the gas SF6.
Inside the switchgear, the switch
disconnectors (from 1 up to 5 units), the
ea rthing switches, the possible three fuses
uni ts (eithe r 1 or 2 units) for the trans
former protection, the bushings for the ca
bles connection and the omnibus bars of
the primary circuit, are housed.
The so composed housing is mounted on a
firm supporting base, manufactured in
previously zincplated sheet steel.
The moving components and the accessi
ble parts are protected by some purposed
protective boxes, realized in carbon sheet
steel (P11) and powder painted.
Legend
1 Metal housing with gas SF6
2 Upper protective boxes3 Lower p rotective boxes4 Supporting base
KJC05KK
Main components
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The bushings for the cables connection
are manufactured in epoxy resin rein
forced with quartz, as well as the insu
lating bushings/M.V. fuses boxes.
Bushing for cables connection
On the sup porting base, the screws for
the cables mounting are situated. Such
screws, realized in nylon reinforced
with glass, can lo ck the M.V. cables
with a crosssection from 25 up to 240
mm2.
Screws for cables mounting
KJC0600
KJC0700
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The braids of the cable s shea ths can
be connected to the earthing busbar
by means of specially purposed bolts.
Earthing busbar
The operating mechanisms a re of the
dead center passagetype, the energy
for the movement of the CB unit circuit
breaker contacts is supplied by somepreviously compressed springs.
In order to avoid any possible errors
during the operations, some manually
operated interlocks of hindrance type
are predisposed between the operating
mechanisms and between the earthing
control and the fuses compartment ac
cess door.
The switchgear structure houses the
cable terminals support and the earth
circuit external to the switchgear itself.
On the protective box covering the con
trols and fuses, the switchgear mimic
diagram is applied, and near the
switch disconnector or earthing switchoperating po ints there is a variable
mimic diagram indicator, showing the
state of disconnectors and fuses. On
the switchgear front side (on Customer
request), it is possible to mount some
inspection windows, allowing to show
the position of the con tacts.
Switchgear equipped with inspection windows
In the switchgea r front side, the pres
sure gauge is situated for checking the
pressure of the gas SF6.
Pressure gauge indicating the pressure of the gas SF6
KJC0800
KJC0900
KJC5700
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In case of overpressures generated by
inner arc, the FLUSARC switchgear are
equipped with safety valves, for letting
the gas flow out into the air, installed in
the stainless steel housing lower part.
Safety valves for allowing the gas to flow out
The FLUSARC switchgear can be manufac
tured in different configurations, accordingwith the Customer requirements.
The units which can be combined together
are the following ones:
> Incoming/outgoing unit (C)
> Transformer protection unit with fuses
(T1)
> Incoming/outgoing unit with removable
circui tbreaker (CB)
> Direct incoming/outgoing unit (R).
> An example of the versions which can
be obtained is represented in paragraph "Dimensions and weights".
It is besides possible to further extend
the configurations by externally con
necting with purposed busbars sev
eral switchgear the one to the others,
provided that they were initially bought
in the extensible version.
Extensibility of the switchgear
KJC1000
KJC1100
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5.1 Incoming/outgoing unit (C)
The line unit consists of a switch
disconnector and an earthing switch.
The switchdisconnector, consists of
three poles mounted on a steel struc
ture and connected to a common shaft,
which, on its turn, is connected to the
operating mechanism. The pole con
sists of an upper part and of a lower
one , in epoxy resin. The upper part
houses the fixed contacts and the connectio n to the busbars, while the
lower part houses the sliding contacts,
the moving contacts and the piston for
the blowing action.
The control can be either manual or
motorized (upon request). In the man
ual control, the only possible action is
performed by means of the purposed
operating l ever supplied in the delivery,
while in the motorized control the op
eration can be executed either by local
or by remote control.
1 2 3 4
56
Switch Disconnector
5.2 Transformer protection unit (T1)
The transformer protection unit consists of
a switchdisconnector and an earthing
switch, equal to those present in the line
uni t. Besides, three fuses, having dimen
sions complying with the DIN Standards,
are installed.
Every fuse is inserted inside a fuseholder,from which it can be frontally extracted af
ter having opened the protection dust
proof enclosure. The insulation between
fuse and fuseholder is of the solidair
type. The fuseholders, manufactured in
epo xy resin , are tight. Positioned the one
on the other inside the switchgear her
metic housing, they are fully immerged in
the gas SF6. The fuses position assures an
easy replacement and a sure intervention
by means of the striker. The extraction of a
fuse is possible only if the same one is iso
lated and earthed both on the supply side
and on the opposi te o ne. A device makes
the automatic opening of the controlbreaker when one o r more fuses get
blown; such device is actuated by the fuse
striker. On the fuses protection dust proof
enclosure, the mechanical signaling of
blown fuse is foreseen.
The fuse rated current depends on the
transformer power.
The fuse rated current depends on the fol
lowing characteristics:
> service voltage,
> transformer power.
The installed fuses must comply with theIEC 602821 Standards and be dimen
sioned according with the DIN 43625
Standards. When the elimination of a fault
corresponds to the blowing of either one or
two fuses, i t is recommended to replace all
the three of them.
MATRICOLA:
TIPO:
IN A Vn KV 50HZ
IMIN A KA
CLASSE:PERUSO INTERNO
PERCUSSORE:TIPO MEDIO medium type striker
INTERNO indoor ESTERNO outdoor IEC282-1 CEI EN60282-1
MILANO - ITALIA
1 3 4 5 2
Legend
1 SF6gas
2 Main busbars3 Upper isolating support4 Lower isolating support5 Bushing for cable connection
6 Connections
KJC1200
Legend
1 Fuse holder in epoxyresin
2 Cover in epoxy resin3 Fuse4 Air5 Switchgear housing
KJC1300
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5.3 Fuse selection table
NB. As far as the performances on gray
background are concerned, ask
AREVA.
100
16
10
10
10/12
15/17,5
20/24
125
16
10
10
160
20
16
16
200
25
16
16
250
32
20
16
U = 4% U = 5%
3 s
U = 6%
4 s
x x x
315
40
25
25
400
50
32
25
500
63
40
32
630
80
50
40
100
206/7,2 25 32 40 50 63 80 100 125 160 200 250 - -
63
63
125 160 200
160
125
100 125 160
125
100
80
63
100
80
125
100
6,330/36 10 10 16 16 20 25 25 32 40 -40 50 63
-
800 100012501600 2000
Rated current of high voltage fuse link in A
Limit of short-circuit time
Rated
voltage
kV
Transformer-capacity in kVA
4101 XX XXX
How to order the fuse
Rated current values for(STANDARD) fuse
Example 4101 36 040
kV Ampere
36 kV 40 A
Rated current values for(OUT STANDARD) fuse
5.4 Unit with vacuum circuit-breaker (CB)
The CB unit consists of a vacuum circuit
breaker connected in series with respectto a three position independent operation
disconnector, allowing the insulation and
the earthing of the line starting from the
unit itself.
The disconnectors three positions are:
a service position
b isola ted position
c ea rthing position (in this condi tion i t is
possible to access to the cables com
partment, in order to carry out the
maintenance or to install the cablesthemselves).
a b c
Three disconnector positions
KJC1400
KJC1500
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The three positiondisconnector operation
is only possible provided that the circuit
breaker is open.
The circuitbreaker operating mechanism
is of mechanical type, with energy accu
mulation and tripfree. It can be custom
ized with a wide range of accessories, to
be easily and quickly installed on a pur
posed accessory p late.
Such plate, realized in a single block and
positioned on the circuitbreaker front
side, allows to easily dismount/mount the
accessories, so facilitating the possible re
placement o r maintenance i nterventions.
Upon request, the circuitbreaker unit can
be equipped with a protection relay.
Accessories pla te
5.5 Direct incoming/outgoing unit (R)
The riser unit is used in order to trans
late in safety conditions a line from a
point situated at a certain height to another poin t having a different height.
5.6 Outdoor switchgear
The FL USARC switchgear can be
equipped with a protected external
structure, hermetically sealed in car
bon sheet steel (P11) opportunely
painted with a combined cycle making
them apt for satisfying the insulation
requirements necessary for granting a
suitable protection against water, dust
and humidi ty, with an IP54 protectionclass.
The apparatus is equipped with a front
hatch with telescopic cylinder opening
lock, for accedin g to the controls and
carry out the routine operations. The
cables connection is frontal and the
bushings are situated under the con
trols, protected by insulated protective
boxes.
Outdoor switchgear
KJC1600
KJC1700
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5.7 Accessories
The FLUSARC switchgear are supplied in a
basic configuration, which can be widened
by a series of accessories available upon
request.
5.7.1 OPERATION COUNTER
The operation counter is a mechanical de
vice, installed on the accessory plate.
It executes the total count of the circuit
breaker closingopening cycles.
Operation counter
5.7.2 UNDERVOLTAGE RELEASE (UVR)
Power consumption
Voltage Inrush Continuous
24 Vdc 150 W 15 W
This is a device which opens the CB
when the auxiliary power supply dropsbelow 35%.
It is available in the following versions:
> undervoltage release for circuit
breaker upstream auxiliary supply
undervoltage release for circuit breaker
downstreamauxiliary supply.48 Vdc 150 W 15 W
110 Vdc 150 W 15 W
220 Vdc 150 W 15 W
110 Vac 50 Hz 180 VA 25 VA
220 Vac 50 Hz 180 VA 25 VA
110 Vac 60 Hz 180 VA 25 VA
220 Vac 60 Hz 180 VA 25 VA
> Coil > Kit with mechanical override
Undervoltage release (UVR)
5.7.3 UNDERVOLTAGE RELEASE CONTROL CARD
It supplies the undervoltage release. It in
cludes a circuit sensitive to the voltage
variations, which sends a tripping signal
when the supply voltage lowers below a
given value.
Undervoltage release control card
KJC1800
KJC2100
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5.7.4 SHUNT CLOSING RELEASE
It is an e lectromechanical device which,
after the energizing of an electromagnet,
actuates the control tripping lever, so
causing the circuitbreaker to get closed.
The circuit breaker control includes the
complete antipumping device.
Shunt closing release
VoltageInrush power
consumption
24 Vdc 300 W
48 Vdc 300 W
110 Vdc 300 W
220 Vdc 300 W
110 Vac 50 Hz 300 VA
220 Vac 50 Hz 300 VA
110 Vac 60 Hz 300 VA
220 Vac 60 Hz 300 VA
5.7.5 SHUNT OPENING RELEASE
It is an e lectromechanical device which,
after the energizing of an electromagnet,
actuates the control tripping lever, so
causing the circuitbreaker to get open.
Shunt opening release
VoltageInrush power
consumption
24 Vdc 300 W
48 Vdc 300 W
110 Vdc 300 W
220 Vdc 300 W
110 Vac 50 Hz 300 VA
220 Vac 50 Hz 300 VA
110 Vac 60 Hz 300 VA
220 Vac 60 Hz 300 VA
5.7.6 DEMAGNETIZATION OPENING SOLENOIDInstalled on the circuitbreaker, it causes
the circuitbreaker opening in case of in
tervention o f the overcurrent release (OCR)
installed either on the circuitbreaker or in
the switchgear.
The demagnetization opening solenoid is
coupled with the VPRSP1 protection relay,
which can be optionally installed in the
switchgear.
Demagnetisation opening solenoid
5.7.7 TOROIDAL CURRENT TRANSFORMER
The toroidal transformer measures the
earth fault current. This device in closed
core version has an inner diameter of 110
mm. The use of the toroidal transformer is
recommended when the earth fault current
is lower than 20% of the nominal value.
Example of toroidal current transformer
KJC2200
KJC2200
KJC2300
KJC3300
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5.7.8 GEAR MOTOR FOR LOADING SPRINGS
It au tomatical ly provides the loading of the
springs, after a closing operation.
Gear moto r for loading springs
It is equipped with an (antipumping) con
trol circuit, which intervenes, when the
OPEN and CLOSED commands are simul
taneously present. In this case, the circuit
breaker gets back to the OPEN position,
after having performed the closing.
It keeps in that position, until a new clos
ing command is sent out, so preventing
the circuitbreaker from continuously
opening and closing.
Gear motor control card
Power consumption
Voltage InrushOperating
power
24 Vdc 500 W 70 W
48 Vdc 500 W 70 W
110 Vdc 500 W 70 W
220 Vdc 500 W 70 W
110 Vac 50 Hz 650 VA 90 VA
220 Vac 50 Hz 650 VA 90 VA
110 Vac 60 Hz 650 VA 90 VA
220 Vac 60 Hz 650 VA 90 VA
5.7.9 LINE CONTROL GEAR MOTOR
It au tomatical ly provides to open and to
close the disconnector.
Feeder operating mechanism gear motor
The gear motor is equipped with an ele c
tronic card, controlling its operation.
Line control gear motor control card
Power consumption
Voltage InrushOperating
power
24 Vdc 400 W 100 W
48 Vdc 400 W 100 W
110 Vdc 400 W 100 W
220 Vdc 400 W 100 W
110 Vac 50 Hz 560 VA 140 VA
220 Vac 50 Hz 560 VA 140 VA
110 Vac 60 Hz 560 VA 140 VA
220 Vac 60 Hz 560 VA 140 VA
5.7.10 AUXILIARY CONTACTS
They are openclosed signaling contacts.
Two versions are available:
> 4 NO + 4 NC auxil ia ry contacts
> 6 NO + 6 NC auxil ia ry contacts
Electric characteristics of the contacts:
Un Icu Cos T
500 V 15 A 0.4
220 V 1.5 A 10 ms
Auxiliary contacts
KJC2400
KJC2500
KJC2600KJC2700
KJC2800
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5.7.11 VOLTAGE PRESENCE SIGNAL LAMP
It signals the vol tage presence on the three
phases, supplied by capacitive voltage di
viders.
It consists of a single block to be installed
on the couplings already present on the
panel.
Vol tage presence signal lamp
5.7.12 LOADED OR UNLOADED CLOSING SPRINGS SIGNALLING CONTACT
Inserted in the electric circuit, it realizes
the indication of the control closing
springs condition.
It is available in two alternative versions:
> loaded springs signalling contact
> unloaded springs signalling contact
Loaded or unloaded closing springs
signalling contact
5.7.13 DIODE RECTIFIER BRIDGE
It is placed on the supply circuit of the
shunt closing and opening releases coils,
if the auxiliary supply is of alternating cur
rent type.
Diode rectifier bridge
5.7.14 PROTECTION UNIT
5.7.14.1 Protection relay
VPR-SP1
Selfpower supplied, it controls the circuit
breaker intervention for the functions of:
50 51 50N 51N
5.7.14.2 Protection relay
VPR-P1
Auxiliarypower supplied , it control s the
circuitbreaker intervention for the func
tions of:
50 51 51NProtection un it
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5.8 Operation
5.8.1 SAFETY SYSTEM
In order to grant the operators safety and
to prevent the risk of wrong operations,
the FLUSARC switchgear are equipped
with the following safety devices (illus
trated in paragraph Product description):
> controls and fuses protective boxes,
which protect the operator from the
moving parts and from the auxiliary
voltages present inside;
> lower protective boxes, for protecting
the cables and the bushings;
> pressure relief valves, installed in the
lower part of the stainless steel hous
ing , which assure the ga s flowoff in
case of a possible "internal arc", without causing breaks on the front part,
where the personnel charged with the
electric operations could be possibly
operating.
Besides the above mentioned, these addi
tional safety devices are provided:
> key lock (o ptional ), for preventing
wrong operations when using the ap
paratus;
Closed earth free key
(transformer protection unit)
Closed ea rth free key (line unit) Open earth free key
(line unit and transformer protection unit)
Open line free key
(line unit and transformer protection unit)
> door interlock device, allowing to
open the switchgear protective
boxes only when the earthing
switch is positioned on "closed
earth";
Door interlock device
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> inte rlock o n the fuseholder cover,
preventing to place the cover itself
on the fuseholder when the fuse is
not mounted inside it, so prevent
ing to put the appa ratus into ser
vice;
NO YES
INTERLOCKINTERLOCK
COVER
Fuseholder cover interlock
> device on the fuses compartment
door, signalling the fuse blown
condition through a colored indica
tor (white for fuse ok, red for fuse
blown) and preventing the door itself to get closed when it was
opened by blown fuse;
Fuses compartment door mechanism
> inte rlock device on the ope ration of
the disconnector control in the mo
torized switchgear, providing to cut
out the power supply to the gear
moto r, so preventing its electric
movement, in case the manual operating l ever would get inserted.
Disconnector control operation interlock device
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All the controls are equipped with me
chanical in terlocks which prevent any
wrong operation, so granting the utmost
safety for the operator. The interlocks are
the following ones:
> interlock between switch
disconnector and earthing switch. It
prevents the ea rthing switch to ge t
closed when the switchdisconnector
is closed. In the same way, the switch
disconnector closing operation is pre
vented when the earthing switch is
closed;
> interlock between circuitbreaker
and disconnector in the CB unit.
When the interlock is shifted to the left,
the circuitbreaker closing is pre
vented. When the interlock is shifted to
the right, the disconnector operation is
prevented;
> interlock between disconnector of
the transformer protection unit and
fuses compartment door. It prevents
the opening of the fuses compartment
door when the switchdisconnector is
on closed position and the earthing
switch is o n open position .
5.9 Interlocks for functions C and T1
Position Switch disconnector Earthing switchAccess to fuses
or cables compartment
Switch disconnectorClosed
Open
Locked open
Free
Not allowed
Dependant on the position o f
the earthing switch
Earthing switchClosed
Open
Locked open
Free
Free
Locked closed
Access to fuses Open Locked open Locked closed
Access to cables
compartmentOpen Locked open
Free for C function
Locked / closed
for T1 function
5.10 Interlocks for function CB
Position Circuit breaker Disconnector Earthing switchAccess cover to
cable compartment
Closed Locked
(in closed position)Locked open Not allowed
Circuit breaker
Open Free
Dependant on the
position of the dis
connector
Dependant on the
position of the
earthing switch
Closed Free Locked open Not allowed
Disconnector
Open Open Free
Dependant on the
position of the
earthing switch
Closed Open Locked open Free
Earthing switch
Open
Dependant on the
position of the
disconnector
Free Not allowed
Access panel to the
cable compartmentOpen Open Locked open Free
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5.11 Operator panels
Tha nks to its wellstructured layout
and clear integrated functional dia
gram, the operator interface is de
signed to ensure safe operation.
Incoming/outgoing unit (C) commands and controls
Legend1 Disconnector switch state indicator2 Disconnector switch operating
control3 Line/earth controls mechanical in
terlock4 Earthing switch operating control5 Earthing switch state indicator6 Vol tage presence signal la mp (op
tional)7 Fuses compartment door handle8 Fuse condition ind icator9 Fuses compartment doo r interlock
Transformer protection unit (T1) commands and controls
Legend1 Disconn ector switch state
indicator2 Disconn ector switch operat
ing control3 Line/earth control s me
chanical i nterlock4 Earthing switch operating
control5 Earthing switch state indica
tor6 Vol tage presence signal
lamp (optional)
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Legend1 Circuitbreaker closing spring
loading2 Circuitbreaker opening control3 Circuitbreaker closing spring state
indicator4 Circuitbreaker closing control5 Operation coun ter6 Circuitbreaker state indicator7 Disconnector/circuit breaker con
trols mechanical interlock8 Line side isolator operating control9 Line/earth controls mechanical in
terlock10 Disconnector/earthing switch state
indicator11 Earthing switch operating control12 Vol tage presence signal lamp (op
tional)
Comma nds and controls of the un it with vacuum circuitbreaker (CB)
At del ivery, the switchgear is supplied in the following condition:
> vacuum circuitbreaker open and opening and closing springs in the CB unit unloaded;
> switchdisconnectors open and earthing switch positioned on "earth".
Position of the indicators at delivery
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5.12 Operating accessories
The o perating accessories a re available
from AREVA T&D.
The use of other auxiliary products and ac
cessories is not permitted.
Standard accessories supplied with the
switchgear are ope rating l ever a nd circuit
breaker closing spring loading lever (CB
unit).
Circuitbreaker closing spring loading
lever (CB unit)
Operating lever
5.13 Cables connnection
The connection to FLUSARC switchgear
is made easy by the frontal position of
the insulator bushings, which is accessible via the simple removal of the ca
ble cover box.
The insulator bushings can be plugin
or inserted with screws type.
The disconnectable cable terminals
can b e completely insulated or partiall y
insulated.
The following table describes the pos
sible connections to FLUSARC switch
gears.
Cables connection
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Connector
type
For cross
section
Ratedcurrent
Bushingscrew
Bushingplug-in
Manufac-
turer
[mm2][A]
EUROMOLD 400 M400LR 185
630 M400TB 35-185
36 kV
PIRELLI
ABB Type 630 SEHDT 33 70-500
250/400 CB 36-400 25-300
630 CB 36-630 25-630
630 CC 36-630 25-630
630 FMCTS-400 25-300
NKT CABLES
Connection Rated current Voltage
36 kV400 A / 630 A
Bushingscrew(STD EN 50181)
Interface C
EXAMPLE OF CABLE TERMINALS
For other terminals cable type ask AREVA.
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6 Ecologicalconsiderations
The switchgear satisfies to a high degree
the ecological requirements in respect of
environmental protection thanks to
> optimization o f material and e nergy
consumption during manufacture;
> compliance with all ecological re
quirements during its service life ;
> the use of recyclable materials for efficient disposal at the end of its service
life.
Our design directive regarding environ
mentally compatible design specifies the
use of materials which can be dismantled
and are easily recyclable. The metals
which form approximately 90% of the
switchgear are easily recyclable. They canbe 100% recycled as new metal compo
nents at the end of their service life.
Plastics can also be recycled.
The thermosetting plastics can be frag
mented and reused as fillers in other plas
tic components; the thermoplastic materi
als can be recycled in new plastic compo
nents.
This means that the material i s recovered,
processed and reused in the manufacture
of new parts.
To ensure efficient and environmentally
friendly dismantling and sorting of materials by responsible disposal experts, all
pla stic components are identified accord
ingly. Moreover, material and utilization
data sheets are available to provide the
customer with an overview about the ma
terials used, and the disposal company
with important information regarding the
recycling process.
Thus, the materia ls used for our products
can be 100% recycled.
This provides a vital contribution to sav
ings in global primary ene rgy and material
resources.
All materials were selected and developed
so that, for example, switchgear affected
by a fire in a building would have a mini
mal effect on the fire load (heat develop
ment and pollutants in the emissions).
Another important ecological aspect is the
longevity of our products (approx. 20
years), which is an extremely long servicelife compared to other capital goods. Also,
the FLUSARC switchgear units have been
designed to require little ma intenance, giv
ing further energy and material savings,
and to enable straightforward replacement
of component parts, e.g. if new controllers
have been developed (upgrading).
The highvoltage conducting parts of our
gasinsulated switchgear units are her
metically sealed in an insulating inert gas
(sulphur hexafluoride SF6which is neither
reactive nor toxic).
Thus, all environmental influences which
could reduce the service li fe a re kept ou tside. The particular characteristic of the
insulating gas also enables the overall size
to be decreased by approximately 30%
compared to switchgear without insulating
gas designed with equivalent technical
characteristics. This again saves on mate
rial and saves on the energy required to
produce the material. The amount of insu
lating gas used in FLUSARC is approx.
0.5% of the total weight of the switchgear.
Once the switchgears service life has
ended, the gas can be completely ex
tracted via the disposal valve provided in
each gasfilled compartment, and then re
cycled. To this end, the gas suppliers have
developed an efficient recycling method.
In normal operation, the gas does not need
refilling during the entire service life.
The switchgear has been designed as a
hermetically sealed pressure system ac
cording to IEC 60694 and EN 60694.
Safety valves for allowing the gas to flow
out
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7 Switchgearinstallation
The FLUSARC switchgears are equippedwith a base with drilling for fastening them
to the floo r.
B73
60.5
A
A (depth)
Dimensions 36 kV
B (width)
615
1276 / 2196
Base with drilling for rea lizing the switchgears fastening to the fl oor
In order to assure the fastening, use some
expansion anchoring bolts in correspon
dence with the holes on the base, making
sure that the bearing surface is perfectly
horizontal and correctly leveled, with a
planarity tolerance lower than 2 per thou
sand.
The dimension are expressed
in mm.
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In the figure, the minimum distances to be o bserved d uring the switchgear installation
are shown, both according with the installation room walls, and in order to allow to
extract the fuses and to easily carry out the operations on the switchgear itself.
FUSE- FUSIBILI
1500 min
FLUSARC-F
700 min100 min
FUSE- FUSIBILI
FUSE- FUSIBILI
The foreseen d istance o f at least 100 mm between the apparatus rear
part and the installation room wall must be absolutely observed, in orderto allow a possible gas flowoff through the pressure relief valve.
FLUSARC-CB
1625 min
700 min100 min
The dimension are expressed in mm.
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8 Shipping
8.1 Packing
Strictly observe the symbols
and the instructions indicated
on the packing.
The FLUSARC switchgear are usually
packed either inside a cardboard box or in
a wooden case and firmly fastened at the
base of a wooden pallet, but they can also
be packed with other methods, according
with the shipment and storing require
ments and complying with the Customer
requests.
The apparatuses are protected by polysty
rene foam panels and wrapped in a water
proof plastic housing, in order to prevent
any water infiltrations during the loading
and unloading phases and to protect them
from the dust during storage.
Lea ve the equipment in its o riginal pack
aging during storage. If units or parts are
unpacked for checking, they must be re
packed for continued storage, using the
original packaging. Avoid condensation.
8.2 Transport
The motor vehicle used for the transport
must be equipped with the loading plat
form realized in an antislip material with a
high friction coefficient.
The switchgear must be positioned on the
loading platform transversally back to
back, by interposing materials fit for ab
sorbing the compressions and for eliminat
ing any possible direct contact of the sur
faces of the different apparatuses.
On the loading pl atform, purposed longitu
dinal members must be disposed, in order
to space every switchgea r and to prevent
both its longitudinal and its transversal
shifting.
The different switchgear must be anchored
to the motor vehicle structure by means of
ropes, in o rder not to provoke deforma
tion s and to prevent the ir possible turnover
on curves or in case of a sudden braking.
Beside s, the motor vehicle used for the
transport must be equipped with a cover
ing sheet.
8.3 Handling
During the switchgear handling,
it i s recommended not to stressthe possible cables connection
bushings placed outside.
In order to lift the FLUSARC switchgear
inside their packing, use a li ft truck
having an adequate lifting power with
respect to the apparatus weight, by
taking care to verify that the packing
keeps perfectly balanced during the
lifting phase.
Packing handling
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Once the packings have been removed, in
order to lift the FLUSARC switchgear, use
the purposed eyebolts predisposed on
their top, by using either a bridge crane, a
crane or a lift truck having a suitable lifting
capacity with respect to the apparatus
weight.
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9 Notes
If you have any comments on the use o f this document or on the use of the equipment and services that a re described in it, please send us
your remarks, suggestions and wishes to:
AREVA Service Strada Comunale Della Braglia, 12 - 26862 Guardamiglio (Lodi) - ITALY
Phone +39 0377 417 351
Fax +39 0377 417 451133
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Our policy is one of continuous develop
ment. Accordingly the design of our prod
ucts may change a t any time. Whilst every
effort is made to produce up to date litera
ture, this brochure should only be regarded
as a guide and is intended for information
purposes only. Its contents do not consti
tute an offer for sale or advise on the appli
cation of a ny product referred to in it. Wecannot be held responsible for any reliance
on any de cisions taken on its contents
without specific advice.
/2008)
AREVA2008.
AREVA,
theAREVAlogoandanyalte
rnativeversionthereofaretrademarksandservicemarksofAREVA.
tioned,
registeredornot,arethepropertyoftheirrespectivecompanies.