HCM-12 Gas Insulated Metal Enclosed Switchgear

HCM-12 gas insulated metal enclosed switchgear(referred as SF6 RMU)is highly reliable and almost maintenance free. It is suitable for 3.6-12kV power distribution system of ring or radial configuration. All live parts, including load break switch, circuit breaker,earthing switch and main busbar are sealed in a tank made of epoxy resin. Elbow-shape cable connectors are used for incoming and outgoing cables.

Price：

￥0.00
Category：

PLC Control Cabinet
Browse number：

49
Release time：

2024-09-21 01:27:58
Quantity： - +
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Detailed Description

Product description

HCM-12 gas insulated metal enclosed switchgear(referred as SF6 RMU)is highly reliable and almost maintenance free. It is suitable for 3.6-12kV power distribution system of ring or radial configuration. All live parts, including load break switch, circuit breaker,earthing switch and main busbar are sealed in a tank made of epoxy resin. Elbow-shape cable Connectors are used for incoming and outgoing cables.

The RMU is less affected by harsh service condition and it is suitable for use in the poor environmental condition and relatively restricted space, especially in pre-fabricated substation, underground substation, industrial and mining enterprises or in high humidity and heavily polluted area.

Construction features

1. Fully insulated and hermetically sealed. Switches,busbars and other high voltage live parts are sealed in epoxy resin tank,so it can be installed in wet, sand, dust,salt,sewage, mine and other areas without special precation measures.

2. Modularization, multi-function combination, high reliable and compact structure, less floor space.

3. Safe and realiable, long service life, maintenance free.

4. Assemblies expansion flexibility, can meet all kinds of complex distribution scheme.

5. It is specially suitable for pre-fabricated substation and cable branch box.

Main parameter

Item		Scheme C		Scheme F		Scheme V
Item		LBS unit		LBS-fuse combination unit		Circuit breaker unit
Rated voltage（kV）		12	24	12	24	12	24
Rated current （A）		630	630	125	125	630	630
Rated frequency（Hz）		50	50	50	50	50	50
1min power frequency withstand voltage（kV）	P to P, P to E	42	65	42	65	42	65
	Break	48	79	48	79	48	79
Lightning impulse withstand voltage（kV）	P to P, P to E	75	125	75	125	75	125
	Break	85	145	85	145	85	145
Partial discharge 1.1Ur（pC）		20	20	20	20	20	20
Rated short time withstand current（kA/s）		20/4	20/4	-	-	20/4	20/4
Rated peak withstand current（kA）		50	50	-	-	50	50
Rated short circuit breaking current（kA）		-	-	31.5	31.5	20	20
Rated short circuit breaking current（kA）		-	-	31.5	31.5	（30 times）	（30 times）
Rated short citcuit making current（kA）		50	50	80	80	50	50
Rated resistive current switching test	cable charge current（A）	10	16	10	16	25	31.5
Rated resistive current switching test	overhead wire charge current（A）	1	1.5	1	1.5	10	10
Rated active load current switching test(times)		100	100	-	-	-	-
Transit current（A）		-	-	1750	1500	-	-
Internal arc test		cable chamber and gas chamber：IAC class AFLR，20kA，50kA（peak），0.5s-1s
Mechanical life（times）	CB	-	-	-	-	20000	10000
	Isolating switch/earthing switch	-	-	-	-	5000/5000	3000/3000
	LBS/ Earthing switch	10000/5000	5000/3000	10000/5000	5000/3000	-	-
IP class	Shell	IP4X	IP4X	IP4X	IP4X	IP4X	IP4X
IP class	Gas chamber	IP67	IP67	IP67	IP67	IP67	IP67
20℃ SF6 Gas rated filling pressure（Mpa）		0.035-0.045	0.035-0.045	0.035-0.045	0.035-0.045	0.035-0.045	0.035-0.045
20℃ SF6 Gas Min. functional pressure（Mpa）		0.02	0.02	0.02	0.02	0.02	0.02