12KV 630A MV Gas Insulated Switchgear SF6 Ring Main Unit

Price Negotiable

Price: Negotiable

MOQ: 1

Delivery Time: 30 days

Brand: Knkong

Product Description

SF6 Ring main unit 12KV 630A gas-insulated switchgear

General

The SF6 ring body is an air-insulated or gas-insulated medium-voltage electrical coupling device that uses a load switch as a core component to switch, communicate, and protect the power system and can be freely combined with multiple circuits. Its main circuit core components consist of SF6 load switches or additional circuit breakers and other major auxiliary appliances.

Standard

ISO 780-1997,MOD
IEC 62271-102:2002,MOD
IEC 60265-1:1998,MOD
IEC 60298:1990
IEC 60529:1989
IEC 507:1991
IEC 60694:1996
IEC 60420:1990

Technical Data

No.	Item		Unit	Parameter
1	Rated voltage		kV	12	24	36
2	Rated frequency		Hz	50/60
3	Rated current		A	630(1250*)
4	1min Power frequency withstand voltage	wet	kV	38	50	70
4	1min Power frequency withstand voltage	dry	kV	48	60	85
5	Lightning impulse withstand voltage		kV	75	125/150	170
6	Rated short circuit breaking current (peak)		kA	80	63	63
7	Rated active load and close circuit breaking current		A	63	50	50
8	Rated transferring current		A	1700	1200	1200
9	Rated short circuit making a current (peak)		kA	80	63	63
10	Rated cable(line) charging breaking current		A	50 and 10 50/10
11	Cable charge breaking current in earthing fault		A	20	20	20
12	Rated withstand current (peak)		kA	80	63	63
13	Short-time withstand current (2s)		kA	25	20	20
14	Mechanism life		times	5000	2000	2000