aegis brochure[1]

8/3/2019 Aegis Brochure[1]

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EN

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IN

EERIN

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BRILLIA

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TSO

LU

TIO

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S

AEGIS- Vacuum Circuit Breaker Ring Main Unit


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Aegis Vacuum Circuit Breaker Ring Main UnitDesigned for secondary distribution networks up to 24kV, and rated currents up to 630A, the Aegis range of vacuum circuit

breaker ring main units (RMU) provides a comprehensive series of solutions which lend itself to numerous applications for

utilities, compact secondary substations, mining and commercial buildings. It is available for both indoor and outdoor

environments protected against the harshest of conditions without the need for additional housings.

Used at the secondary distribution level primarily for distribution of power and for the protection of local transformers.

It is suitable for heavy duty operation with a long service life and virtually zero maintenance. It can be used either as a

freestanding unit or installed in compact mini-substations and kiosks.

Benefits Front accessed cable box suitable for disconnectable

cable terminations

Fully interlocked for safe operation

Maintenance free

Easy to install

Simple operation

Suitable for mini substation

Configured for future automation applications

Climate-independent

Proven technology

No Kiosk required

Cost effective

Key features 12kV, 17.5kV and 24kV versions

Compact one tank solution

Intuitive mimic diagram

Vacuum interrupters for circuit breakers

Pre-wired for motor actuation and

remote indication

Integral cable testing from front of the unit

Common stainless steel switching chamber

Hermetically sealed switching chamber

DIN 400 C-bushings as standard on all circuits

Indoor and outdoor application

Superior electrical performance - in excess

of IEC requirements

Transformer over current protection for phase

to phase faults


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1 Lifting lugs

2 Sealed tank

3 Switch blades

4 Vacuum interrupters

5 Internal arc vent

6 Primary earth point

7 Fully interlocked test access cover

8 Cable test terminals

9 Pressure gauge

10 Facia and mimic

11 Circuit breaker or ring switch operation

12 Cable termination

13 Cable box


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DesignThe Aegis ring main unit is available with up to 4 functionsin one common tank. It can be configured with vacuum circuit

breaker units or a combination of vacuum circuit breakers

and fault-make load break switches.

Stainless Steel Gas Enclosure

Highest quality stainless steel switching enclosure.

Housing

Fully treated, to resist weather and pollution attacks. Outdoor

units are provided with a hinged, weatherproof and lockable

cover.

Circuit Breaker

Comprises 3 vacuum interrupters for fault-make, fault-break

rating.

Switches

Switching available via single break 3 position switches

providing ON, OFF and EARTH positions.

Operation

Operated via manually independent mechanisms mounted

external to the gas enclosure, status is clearly identified

through mimic diagram on front panel.

Test Facilities

Fully interlocked test facilities are provided in accordance

with IEC62271 requirements, standard on ring switch, optional

on circuit breaker.

Interlocks

Positive, intuitive, clear and simple safety interlocks are

incorporated on all switch positions to prevent mal-operation.

Padlocks

All switch and selector positions can be padlocked to prevent

unauthorised access

Options Circuit Breaker ProtectionCircuit breaker protection can be achieved via ring core

current transformers in combination with Time Limit Fuse or

a range of protection relays.

Cable Boxes

Internal arc tested cable boxes are available for IEC 62271

specifications. Interlocked cable boxes are also provided

as options.

Automation

Pre-wired for automation. Rotary actuators can be easily and

rapidly fitted on site whilst the unit is in service no access

is required to the internal workings of the Aegis.

Remote Trip Coil

Push to trip

Earth Fault Indicator

Safety Hermetically sealed, touch safe units ensures maximum

operator safety.

Mimic diagram representation minimising language issues.

Voltage Presence Indicator System (VPIS) clearly identifies

when circuit is isolated from supply.

Quality ISO 9000 quality systems approved.

Proven technology.

FMEA (failure mode evaluation analysis) designed.


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Typical Schematic Line Diagram

Typical Configurations and Dimensions

3-way 4-way

3-way 4-way


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Technical Data(ratings in brackets are optional)

LS00001 AEGIS 04 2010 (1000) 7642

www.lucyswitchgear.com

Rated Voltage 12kV 17.5kV 24kV

Frequency 50Hz 50/60Hz 50Hz

Impulse Withstand Voltage 75 kVp 95kVp 125kVp

Normal Current

Ring Switches 630A 400A 400A

Circuit breaker 250A(630A) 200A 250A(400A)

Short Circuit Peak making Current

Ring Switches 50kA 54.6kA 40kA

Circuit Breaker 50kA 54.6kA 40kA

Short Circuit breaking Current

Circuit Breaker 20kA 21kA 16kA

Short Time Current

Ring Switches 20kA for 3 sec 21kA for 1 sec 16kA for 3 sec

Circuit Breaker 20kA for 3 sec 21kA for 1sec 16kA for 3 sec

Earth Switch Peak Making Current

Ring Switches 50kAp 54.6kAp 40kAp

Circuit Breaker 7.9kAp(50kAp) 54.6kAp 7.9kAp(40kAp)

Internal Arc Rating

Freestanding 20kA 1sec 21kA 1sec 16kA 1sec

Substation 20kA 1sec 21kA 1sec 16kA 1sec

Optional Cable Boxes internal Arc Rating 20kA 1 sec 21kA 1sec 16kA 1sec

Gas Pressure

Min Operating Pressure 0 Bar 0 Bar 0.4 Bar

IP Rating IP4X(IP54W option) IP4X(IP54W option) IP4X(IP54W option)

Testing Standards

IEC 60265-1

IEC 62271-100

IEC 62271-102

IEC 62271-200

12kV 17.5kV 24kV

cy Switchgear

owland Road, Thame,

xfordshire, OX9 3UJ, UK

l: +44 (0)1844 267267

x: +44 (0)1844 267223

mail: [email protected]

Lucy Middle East

PO Box 17335, Jebel Ali,

Dubai, United Arab Emirates

tel: +9714 812 9999

fax: +9714 812 9900

email: [email protected]

The Saudi Lucy Company Ltd

PO Box 834, Al-Khobar,

31952, Saudi Arabia

tel: +966 3 8823057

fax:+ 966 3 8822553


Lucy South Africa

Suite 22, Fourways Business

Centre, Design Quarter, Nicole

Grove Office Park, Leslie Road,

Fourways 2005, South Africa

tel: +27 (0)11 5133415

tel: +27 (0)11 5133000

fax: +27 (0)86 6783418


Lucy Asia Pacific Sdn Bhd

Suite 32-01-92, 32nd Floor, Wisma Keck

Seng, 203 Jalan Bukit Bintang, 55100

Kuala Lumpur, Malaysia

tel: +603 2116 5640

fax: +603 2116 5647


aegis brochure[1]

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