Combined Fixed AC Metal-clad RMU Switchgear HXGN1A-12
HXGN1A-12 Combined (Fixed) AC Metal-clad RMU Switchgear (hereafter referred to as "Ring Main Unit") is an indoor integrated power distribution equipment which are applied to RM power supply and terminal power supply system of 6-10KV three-phase AC and 50HZ. It is suitable for places such as industrial and mining enterprises, residential district, high rise buildings, schools, parks, etc to accept and distribute power supply. This RMU is up to GB3906-91, [3-35KV AC Metal-clad Switchgear] and IEC 298 standard [Alternative Current Metal-clad Switchgear and control-gear from 1kV to 52kV, including 52kV]. At the same time, it has the closedown function of "Five protection" .
Product feature :
a. RMU is made up of electric elements, body and inter-lock mechanism. It could be operated on the left side or right side, if not requested specially, please supply the products by right operation.
b. The main components include FN12-12D load switch with side mechanism or FN12-12RD composite apparatus, current transformer, voltage transformer and HV electricity indicator etc.
Ring main unit is composed of frame, roof plates, faceplates and side plates which are made of bent steel plates.
c. The busbar could be made of copper or aluminum.
Type designation :
Technical parameter :
|
No.
|
Name
|
Unit
|
Technical parameter
|
|
1
|
Rated voltage
|
kV
|
12
|
|
2
|
Rated frequency
|
Hz
|
50
|
|
3
|
Rated current of main busbar
|
A
|
630
|
|
4
|
Rated short-time withstand current
|
kA
|
20£¨2s£©
|
|
5
|
Rated short-time withstand current of earthing circuit
|
kA
|
20£¨2s£©
|
|
6
|
Rated peak withstand current
|
kA
|
50
|
|
7
|
Rated peak withstand current of earthing circuit
|
kA
|
50
|
|
8
|
Rated short circuit making current of main circuit
|
kA
|
50
|
|
9
|
Rated short circuit breaking current of fuse
|
kA
|
31.5
|
|
10
|
Mechanical endurance
|
times
|
2000
|
|
11
|
1min power frequency withstand voltage phase to earth, phase to phase/isolating distance
|
kV
|
42/48
|
|
12
|
Lightning impulse withstand voltage phase to earth£¬phase to phase/isolating distance
|
kV
|
75/85
|
|
13
|
1min power frequency withstand voltage of secondary circuit
|
V
|
2000
|
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