Air-insulated switchgear for power application/Ring Main Unit 12kV 17.5kV 24kV

Description

UniGear ZS1 is the ABB mainlineglobal switchgear for primary distribution up to 24 kV, 4 000 A,63 kA.The switchgear is manufacturedworldwide and there are more than 700 000 panels currently installed.

UniGear ZS1 is used to distribute electric power in a variety of demanding applications such as on off shore platforms, in container or cruise ships, in mines as well as in utility substations, power plants or chemical plants.UniGear ZS1 is available as a single busbar, double busbar, back to back or double level solution.

Features

• Standards: IEC, CSA, GOST, GB/DL.

• Most of panels classified as LSC2B, PM *.

• Accessibility type: A.

• Internal arc class: FLR.

• Highly customized versions available.

• Switchgear can be back to wall installed.

Safety

• Fully type tested according to IEC 62271-200.

• Fitted with safety interlocks.

• Circuit breaker racking with closed doors.

UniGear ZS1 panel variants have the most common classification LSC2B, PM. Check other panel variants and their LSC classification in catalogue 1VCP000138.

Switching devices

• Vacuum circuit breaker with spring actuator.

• Vacuum circuit breaker with magnetic actuator.

• SF6 circuit breaker with spring actuator.

• Vacuum contactor.

• Switch disconnector.

Current and voltage measurement

• Current and voltage sensors.

• Conventional current and voltage instrument transformers .

Protection and control

• Relion® protection and control relays.

Optionally available with

• Optical arc fault protection 

• Ultra Fast Earthing Switch UFES

• Surge arresters

• Is-limiter, advanced fault current limiter

• Smart solutions

Technical parameters

 1.With installed gas exhaust duct 2.Depending on rated feeder current  3. 2 089 – 2 154 mm for 63 kA 4) 42 kV (63 kA version; GB/DL)

 Note: 1 250 A - 40 kA  available at 650 mm panel

Structure diagram