JGGV12D/630/20S Gas-Insulated Switchgear Circuit Breaker (With Upper Isolation and Grounding) 12KV 24KV GIS SF6 Free|GIS Switchgear|MV Switchgear|Products|JGGY Electrical.com

JGGV12D/630/20S Gas-Insulated Switchgear Circuit Breaker (With Upper Isolation and Grounding) 12KV 24KV GIS SF6 Free

JGGV12D/630/20S Vacuum circuit breaker is a special vacuum circuit breaker for 12kV SF6 inflation cabinet. The switchadopts splint type structure, which has the advantages of reliable breaking performance, long service life, maintenance-free and easy installation.

JGGV12D/630/20S vacuum circuit breaker is mainly used in the market common ABB type SF6 fully insulated metalclosed switchgear or for other similar types of SF6 inflation cabinet, as the main components of the infation cabinet, bealthe main function, with the rated current and load current, Closing and breaking short circuit current perfommance

Main Circuit Parameters:

Rated current: 630A

Short-circuit breaking capacity: 20kA (4s) and 25kA (3s)

Mechanical endurance: 10,000 operations

Grounding Circuit Parameters:

Short-circuit breaking capacity: 20kA (2s)

Mechanical endurance: 3,000 operations

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Mechanical Parameters

No.	Item	Unit	Technical Parameters
1	Rated Frequency	Hz	50
2	Rated Current	A	630
3	Rated Short-Time Withstand Current	kA	20/25
4	Rated Peak Withstand Current	kA	50/63
5	Rated Short-Circuit Duration	s	4
6	Rated Short-Circuit Making Current	kA	50
7	Theoretical Operating Cycles	Times	5000

No.	Item	Unit	Technical Parameters
1	Main Circuit Resistance	μΩ	45
2	Overtravel	mm	2-3
3	Contact Gap	mm	8-10
4	Contact Bounce	ms	≤2
5	Average Opening Speed	m/s	1.0-1.4
6	Average Closing Speed	m/s	0.6-1.1
7	Three-phase Opening Asynchronism	ms	≤2
8	Three-phase Closing Asynchronism	ms	≤2