It is designed as withdrawable module type panel, and the withdrawable part is fitted with VD4-36E, VD4-40.5 withdrawable vacuum circuit breaker manufactured by Cooper Nature company. It can also be fitted with isolation truck, PT truck, fuses truck and so on. It is applicable to three phase AC 50/60 Hz power system, and mainly used for the transmission and distribution of electrical power and control, protection, monitoring of the circuit.

++++Standards and specifications:

IEC60694 The commo n technical requirements of high voltage switchgear and controlgear
IEC62271-200 A.C. metal enclosed switchgear and controlgear at the rated voltage of 1kV~52k V
IEC62271-100 High voltage switchgear and controlgear-Part 100:Hi gh voltage A.C. circuit breaker
GB3906 3.6~ 40.5kV alternating current metal enclosed switchgea r and controlgear
GB1984 High voltage alternating current circuit breaker
GB/T11022 The commo n technical requirements of high voltage switchgear and controlgear
DL/T404 3.6~ 40.5kV alternating current metal enclosed switchgea r and controlgear

++++Service conditions:

a. Ambient temperature: Maximum temperature:+40℃ Minimum temperature: -15℃
b. Ambient humidity: Daily average RH no more than 95%;Monthly average RH no more than 90%
c. Altitude no higher than 2500m;
d. The air around without any pollution of duty,smoke,ercode or flammable air,steam or salty fog;

++++Main technical specifications:

No.	Item	Unit	Parameters
1	Rated Voltage	KV	36	40.5
2	Rated Frequency	Hz	50/60
3	Rated Current	A	630 1250 1600 2000 2500 3150
4	Branch busbar rated current	A	630 1250 1600 2000 2500 3150
5	Main busbar rated current	A	630 1250 1600 2000 2500 3150
6	1min power frequency withstand voltage	KV	70	95
7	Lightening impulse withstand voltage	kV	170	185
8	Rated Short-time Withstand Current (4s)	kA	20/25/31.5/40
9	Rated Short Circuit Breaking Current(Peak)	kA	40/50/63/80/100
10	Protection type		IP4X for housing
11	Rated voltage for control Circuit	V	DC110, DC220, AC220