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Indoor Metal Enclosed Switchgear

Product overview:

The XGN15-12 indoor metal enclosed switchgear is a compact indoor power supply and distribution unit. The ZN100-12 vacuum circuit breaker and XGN15-12 load switch of the XGN15-12 switchgear have the following advantages: strong insulation performance and convenient operation.


The interior of the indoor metal enclosed switchgear adopts a rotary fuse structure, which makes the replacement of the fuse highly convenient. The size of the XGN15-12 switchgear is extremely small compared to other gas insulation cabinets and it is eco-friendly power supply and distribution applications. This is particularly advantageous for urban users and in residential areas.

Technical parameters:
Parameters HSIS Solid insulated ring main cabinet HSIS(C) load-break switch HSIS(V) circuit breaker composite apparatus HSIS disconnecting, grounding switch
Rated voltage (KV) 12 12 12 12 12
Rated current  (A) 630/1250 630/1250 630/1250 125 630/1250
Rated frequency (Hz) 50 50 50 50 50
Operation types vacuum vacuum vacuum vacuum vacuum
Arc extinguishing types Permanent magnet and spring Permanent magnet and spring Permanent magnet and spring Permanent magnet and spring spring
Power-frequency withstand voltage (KV) 42 42 42 42 42
48 48 48 48 48
Lighting impulse (KV) 75 75 75 75 75
85 85 85 85 85
Rated short-circuit breaking current  (KA) 20 20
Rated short-circuit breaking current Breaking times 30 30
Rated short-circuit current  (KA) 50 50 50 20
Rated short –circuit breaking current breaking times 5 5 2
Rated short-time withstand current 20 20 20 20
duration of rated short-circuit 4 4 4 4
Rated peak with stand current  (KA) 50 50 50 50
rated cable-charging breaking current (A) 10 10
Take over current  (A) 1750
Arc current  (S) 0.5 0.5 0.5 0.5 0.5
partial discharge (pc) ≤20 ≤5 ≤5 ≤5 ≤5
Mechanical service life
(Permanent magnet mechanism and spring mechanism)
10000/30000 10000/30000 10000/30000 10000/30000 10000/30000
Switchgear dimensions 400*750*1450 400*750*1450 400*750*1450 400*750*1450 400*750*1450

-The vacuum load switch and related operating mechanism are maintenance free
-The switchgear has a simple and reliable mechanical interlock to prevent improper use and is easy to operate
-Each functional unit is separated from each other, meanwhile they are matched with an independent pressure releasing pathway, which can effectively prevent fault expansion
-You can conveniently observe the isolation fracture and the cable terminal connection joint through the observation vent
-The secondary component room has significant space, making wiring easy
-The fuse and wiring apparatus can be easily changed
-The size is small, only 50% of ordinary switch cabinets

Application environment:

-The maximum temperature: +50℃ minimum temperature: -40℃
-Humidity: daily average is no more than 95%, the monthly average is not more than 90%
-Seismic intensity: grade 8
-Altitude: ≤5000 meters

Module and operating instructions

Circuit breaker module (V module)

-The circuit breaker module is used for the control and protection of lines and transformers, and has the following protections against: overload, short circuit, fast power break, reclosing, under voltage and grounding
Standard configuration:
-Circuit breaker switch cabinet (switch, electric / manual operating mechanism)
-Live displayer
-Grounding observation window
-Control box
-Cable plug observation window
-Protective current transformer (2 pcs)
-Active (passive) overload protection device
Basic performance:
-Vacuum extinction
-Permanent magnet mechanism and spring mechanism
-Mechanical interlock
-Three station isolation / grounding
Module size: 400*750*1450

Contact module

-The contact module can be matched with the related switch cabinet, to be connected with two bus lines, so that it forms a double bus connection, which improves the reliability of the power supply.
Standard configuration:
-12KV/630A bus tie cabinet
-Live displayer

Load switch Module (C Module)

-The load switch module is used for the control of inlet-outlet line cable, can break off the load current and short-circuit current.
Standard configuration:
-Load switch cabinet (switch, electric / manual operating mechanism)
-Live display
-Insulated ground observation window
-Control box
-Cable plug observation window
Basic performance
-Vacuum extinguishing
-Rotating three station isolation / grounding, spring / permanent magnet operating mechanism
-Five mechanical interlock
Module size: 400*750*1450

Cable lifting (energizing) module (D module)

-Bus bar cabinet, taking the bottom line as the busbar.
-The switchgear can also be used as a metering cabinet and outlet cabinet.
Standard configuration:
-Lifting cabinet
-Live display, insulated ground observation window
Basic performance:
-630 busbar
-Outlet line of cable box
-Cable plug observation window
Module size: 400*750*1450

High voltage metering module (M module)

-Measuring and recording the power supply.
Standard configuration:
-Metering cabinet
-12KV/630A busbar
-Three phase PT (voltage transformer) 1 piece
-PT protection fuse
-2 sets of 630 cable plug
-CT (current transformer) 2 pcs
-Live displayer
Module size: 600*1000 *1450
Other optional configurations:
-Short circuit and ground fault indicator
-Current transformer and Meter
-Electrical operation (24/48VDC, 110/220V DC/AC)
-Auxiliary shock
-Cable accessories
-Transfer Switch
-Boundary switch control

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