4921240114 deif synchronizers

7/29/2019 4921240114 Deif Synchronizers

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D

EIFA/S

ApplicationThe FAS-113DG synchroniser is applied forsynchronisation of a generator to the busbar andclosing of its circuit breaker when the voltage difference,the slip frequency and the phase angles are within thepreset limits. The synchroniser can be applied inconjunction with a wide range of prime movers, as itscontrol pulses may be set to fit several types - fromslowly reacting diesel engines to swiftly reacting gasturbines.

FunctionThe FAS-113DG performs a dynamic synchronisation,

ensuring that the slip frequency is always positive toprevent reverse power conditions to occur (see optionD). In order to calculate when to transmit the closingsignal to the generator breaker, the synchronisermeasures the actual slip frequency and compares thiswith the circuit breaker closing time (potentiometermarked BREAKER). When the slip frequency and thevoltage deviation are within the settings (potentiometersmarked FREQ and VOLTAGE), the above calculation isperformed, and the synchroniser transmits the closingsignal to the breaker x degrees before top allowingtime for this to close.

In case of harmonic distortion or noise on the voltageinputs the FAS-113DG is equipped with special filterson the AC voltage inputs to avoid unprecisesynchronisation pulse to be transmitted. Furthermore adf/dt (ROCOF) function is implemented, if the filters areunable to make the necessary filtering of the inputsignals, the df/dt function will prevent unprecisesynchronisation pulse to be transmitted. If the df/dtfunction is active, the situation will be indicated by aflashing f LED (see option C).

The FAS-113DG is provided with an analoguefrequency output and an analogue voltage output,intended for common control of the frequency and thevoltage of DEIF load sharing units type LSU-112/113/114DG and LSU-122DG, a function applied for

simultaneous synchronisation of all generators of aplant to the busbar.

Regulator outputThe unit is provided with 2 contact outputs for speedcontrol:

Frequency control:The regulating speed of the servomotors for the primemover is controlled by the built-in P controller of theFAS-113DG according to its setting for:

TN (pulse length):The min. duration of the control pulse.

XP (proportional band):The zone within which the pulse/pause ratio changesproportionally to the frequency deviation from fset.

Dead band 0.05Hz:The zone within which no control pulses are emitted.

The phase angle advance is calculated and asynchronising signal transmitted provided that:1. the voltage difference is within 2...12% of the

busbar voltage, and2. the frequency difference is within 90% of the value

set on the FREQ potentiometer, and3. the generator frequency is higher than the busbar

frequency (see option D also).

When the above 3 conditions are fulfilled, a synchro-nising signal is transmitted, the yellow LED SYNC is lit,and the output contact is activated for 400 ms.

Special function for commissioningThe FAS-113DG is equipped with a function forchecking of the phase sequence. When the frequencyand the voltage between the busbar and the generatorinputs are the same and the phase is inside 5 for 1 s,the sync. relay is activated. If the generator is stoppedand the star point is opened and the generator breakeris closed, the FAS-113DG will transmit a closing signalif the phase sequence is OK.

Self-monitoringThe FAS-113DG is equipped with a self-monitoringfunction. The function supervises the built-in micro-controller and hereby verifies if the programme is

running correctly. The green LED marked POWER isconnected to this function. Constant green lightindicates that the supply voltage is accepted and theunit is running correctly. Flashing green light 2-3Hzindicates that the supply voltage is accepted but theunit is running incorrectly. In this situation the statusoutput terminals 17 and 18 are activated (open).

ANSI code 25 SynchronisersType FAS-113DG uni-line

4921240114E

Synchronisation of generator to busbar

Circuit breaker time compensation

LED indication of status

LED for activated control

LED for synchronising signal

35 mm DIN rail or base mounting FAS-113DG


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FAS-113DG

Terminals/function

Connection Connect

Busbar L1 to term. 24 L2 to term. 26

Generator L1 to term. 29 L2 to term. 31

Terminalno.

Description/action

1 and 3X1/X2

Input for supply voltage

8, 9 and 10 Relay contact for circuit breaker. On time 400 ms

17 and 18Sta

Status output, activated (closed) when the supplyvoltage is connected and the unit is workingcorrectly

24 and 26BB/L1 BB/L2

Input for busbar voltage measurement. This inputbecomes active when the voltage level exceeds80% of nominal voltage

29 and 31G/L1 G/L2

Input for generator voltage measurement. Whenthe voltage level on this input exceeds 60% ofnominal voltage, the FAS-113DG is activated

and the regulator outputs (SG) become active.Note that with an auxiliary contact on thegenerator circuit breaker this function can beused for resetting of the FAS-113DG aftersynchronisation and hereby deactivation of theSG outputs. This function allows the supplyvoltage to be connected at any time

33 (U)Option F

This output is intended for common control of thevoltage of all the connected reactive power loadsharing units type LSU-122DG in a generatorisland. If terminal 33 is connected to the commonvoltage line (US) on the LSU-122DGs, the FAS-113DG will regulate the voltage on the generatorisland so it matches the voltage on the unit the

island is about to be connected to34 and 35(INH)

May be connected to a potential-free N/Ocontact. When this contact is activated, the FAS-113DG will not transmit a closing signal(terminals 9 and 10), but the SYNC LED will be litwhen the sync. pulse is transmitted. This functioncan be used for testing purposes. Note that if theFAS-113DG is equipped with option A or B, thisinput has a different function

36(f)

This output is intended for common control of thefrequency of all the connected load sharing unitstype LSU-112/113/114DG in a generator island.If terminal 36 is connected to the commonfrequency line (FS) on the LSUs, the FAS-

113DG will control the frequency on thegenerator island so it matches the frequency onthe unit the island is about to be connected to

35

()

Common earth terminal for the aboveinput/output

38 and 39Relay con-tacts SG

Relay contact for increase of the speed

40 and 41Relay con-tacts SG

Relay contact for decrease of the speed

NOTE:Relay con-tacts

Relays (SG) should always be connected viaexternal aux. relays when a DC pilot motor isapplied. A transient suppressor should always be

connected across the relay coil of the externalrelays

OptionsThe FAS-113DG can be configured with the following options:

Frequency controller, option AThe FAS-113DG is set to act as a frequency controllerensuring a stable generator frequency according to the setting(50Hz or 60Hz). The function is activated when the INH input isclosed. Please note that with option A implemented, disabling

of the sync. relay output is not possible. If the INH input isopen, the FAS-113DG functions as a normal synchroniser.When the input INH is activated, the FAS-113DG will act as afrequency controller and regulate the generator to thefrequency setting (50Hz or 60Hz) 0.05Hz, and no sync. pulsewill be transmitted.

Dead bus, option BWhen implemented the dead bus function enables the FAS-113DG to transmit a closing signal to the generator breakerwhen no busbar voltage is present. When the generatorvoltage is within 60% of nominal level and the busbar voltage isbelow 20% of nominal level, the FAS-113DG will start tocontrol the generator frequency according to the setting (50Hzor 60Hz). When the frequency becomes nominal 0.05Hz andthe voltage level is nominal the setting (potentiometermarked VOLTAGE), the sync. pulse is transmitted to thebreaker. Please note that after closing of the breaker (voltageon both inputs on the FAS-113DG), the FAS-113DG will startcontrolling the frequency to the setting on the FREQpotentiometer. If this setting is 0.5Hz, the resulting busbarfrequency will be 50.5Hz or 60.5Hz. This can be avoided, if thegenerator voltage input (terminal 29 or 31) is disconnectedfrom the FAS-113DG after closing of the breaker. To make itpossible to open the generator breaker from another systemand prevent the FAS-113DG from performing a new dead busclosing of the breaker, the time when the generator breakermust close can be controlled by means of the INH input. If theINH input is activated (closed), the FAS-113DG will not activate

the sync. relay even if there is a dead bus situation. When INHis deactivated, the FAS-113DG will transmit the closing signal.Please note that with option B implemented, disabling of thesync. relay is not possible.

Deactivation of the df/dt protection function, option CIf instability in the speed loop control system occurs resulting injitter on the voltage signals (fast instability typically occurs, ifthe governor is responding to engine firings), and it is notpossible to adjust this on the governor, or in applications withmuch noise and harmonic distortion (frequency converters), thedf/dt protection function can be activated resulting in NO sync.pulse. If this is the case, and the switchgear is properlyprotected against wrong synchronisation, the df/dt protection

function can be disabled. Please note that when this function isdisabled, noise on the busbar and the generator inputs of theFAS-113DG can, at worst, result in a 180 out of phasesynchronisation.


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Type FAS-113DG

Options, continuedAccept of both undersynchronisation and oversynchronisationof the generator breaker, option DOption D can be activated in applications where a fastsynchronisation has priority and the risk for reverse power isunimportant. With this option activated the FAS-113DG will

regulate the generator to perform either an under- or anoversynchronisation, the parameter used for either under- oroversynchronisation is the parameter which first obtains asynchronisation as fast as possible.

Extended circuit breaker closing time, option EIn applications with very slow generator circuit breakers withclosing time up to 400 ms this option will prolong the setting ofthe closing time (potentiometer marked BREAKER) to coverthe range 200400 ms.

Voltage difference analogue output, option FThis output is standard 0510V corresponding to80100120% of Unom for control of the LSU-122DG. If

option F is selected, the output is changed to -10010Vcorresponding to 90100110% of Unom for control of theunits in the multi-line series, e.g. PPU/GPC.

Technical specificationsAccuracy:Breaker closing: Slip frequency 0.10.25Hz: 3 el.

Slip frequency 0.250.5Hz: 5 el.

Meas. voltage: See supply voltage - AC ranges

Load: 2k/V

Frequency range: 40456570Hz

Breaker closingpulse length: 400 ms 10 ms

Inhibit input: Potential-free contactOpen: 5V. Closed: 5mA

Contact outputs:Sync. pulse output: 1 change-over switchFreq. control outp.: 2 make contactsContact ratings: AC1: 8A, 250V AC

DC1: 8A, 24V DCAC15: 3A, 250V AC

DC13: 3A, 24V DC

Life electrical: 1 x 105

(nominal value)

Analogue output:Freq. difference: 1 analogue output:

-10010V DC ~ -505HzVolt. difference: 1 analogue output:

0510V DC ~ 80100120% of Un-10010V DC ~ 90100110% of Unwith option F activated

Optocoupler outp.: System status off = FailureMax. voltage 30V DC, max. current 5mA

Temperature: -2570C (operating)

Temperature drift: Set-points:Max. 0.2% of full scale per 10C

Galv. separation: Between inputs and outputs:3250V - 50Hz - 1 min.

Supply volt. (Un): 57.7-63.5-100-110-127-200-220-230-240-380-400-415-440-450-660-690V AC 20%(max. 3.5VA)24-48-110-220V DC -25/+30%(max. 2W)

Climate: HSE, to DIN 40040

EMC: To EN 50081-1/2, EN 50082-1/2,SS4361503 (PL4) and IEC 255-3

Connections: Max. 4 mm2(single-stranded)

Max. 2.5 mm

2(multi-stranded)

Materials: All plastic parts are self-extinguishing toUL94 (V1)

Protection: Case: IP40. Terminals: IP20, to IEC 529and EN 60529

Type approval: The uni-line components are approved bythe major classification societies. Forcurrent approvals see www.deif.com orcontact DEIF A/S


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Type FAS-113DG

SettingsSetting of Range

TN Control pulse length 25...500 ms

XP Proportional band 0.25...2.5Hz

fset Slip frequency 0.1...0.5Hz *

Umax.

Acceptable volt. diff. 2...12% of UBB

TBC Breaker closure time 20...200 ms(200...400 ms) option E

* Accept of max. df/dt depends on fset0.1Hz ~ 2.5Hz/sec.0.5Hz ~ 12.5Hz/sec.

IndicationLEDs Light

UG Generator voltage

UBB Busbar voltage

f Frequency difference(df/dt check)

U Voltage difference

Green, when value iswithin the acceptable rangeSwitched off, if outside thisrange

SYNC Synchronising

SG Increase speed (freq.)

SG Decrease speed (freq.)

Yellow, when relay isactivated

Once the relay has been mounted and adjusted, thetransparent front cover may be sealed, preventing unwantedchange of the setting.

Connections/dimensions (in mm)

See installation instructions for informationabout status output (17-18)

Weight: Approx. 0.750 kg

Order specificationsType Measuring voltage Supply voltage (Option Generator frequency)Example:FAS-113DG 380V AC 24V DC Option A 50Hz

NOTE:Option A and option B cannot be chosen at the same time.

Due to our continuous development we reserve the right tosupply equipment which may vary from the described.

DEIF A/S, Frisenborgvej 33DK-7800 Skive, Denmark

Tel.: +45 9614 9614, Fax: +45 9614 9615E-mail: [email protected], URL: www.deif.com

4921240114 deif synchronizers

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