Srm-12/24kv High Voltage Inflatable C-Gis Cabinet Electrical Control Cabinet

Srm-12/24kv High Voltage Inflatable C-Gis Cabinet Electrical Control Cabinet image

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Basic Info.

Model NO.

SRM

Transport Package

Packages

Specification

24kv

Trademark

LIYOND

Origin

China

Production Capacity

5000/Year

Product Description

Summary:

SRM- 12/24 series of ring main unit is SF6 gas- insulated metal common tank enclosed switchgear, consisting of load break switch unit, load break switch fuse combination electrical unit, vacuum circuit breaker unit, and the incoming line unit of bus. It adopts a range of advanced technologies and materials, with excellent electrical and mechanical properties, less affected by environment and climate, in small size, easy to install easy to operate, with no need of maintenance, and can be flexibly combined. Its clear and intuitive design ensures simple and direct operation, the feeder’s connection capacity is large, suitable for a variety of wiring systems.

Unit Definition:

Unit code	Meaning
C	Standard single casing load break switch unit
F	Load break switch and fuse combination
V	Apparatus unit
D	Cable unit(without switch)
+	Side casing of busbar
–	Top casing of busbar
SL	Bus couple unit
M	Metering unit
PT	PT unit
1K2(4)	Double-sleeve outgoing load break switch unit

Specification

ltem		Unit	Load break switch unit	Combination apparatus	Fuse unit
Rated voltage		kV	12/24	12/24	12/24
Rated frequency		Hz	50	50	50
Rated current		A	630	Depend on rated current of fuse	630
P.F.withstand voltage (phase to phase.phase to earth)		kV	42/65	42/65	42/65
Ated insulation levels	P.F.withstand voltage(Across open contacts)		48/79	48/79	48/79
	P.F.withstand voltage (Control and auxiliary circuit)		2/2	2/2	2/2
	Lightning impulse withstand voltage (phase to phase, phase to earth)		75/125	75/125	75/125
	Across open contacts		85/145	85/145	85/145
Ogauge pressure test		–	Pass	Pass	Pass
Rated short time withstand current		kA	20/4s/20/3s	–	20/4s/20/4s
Rated peak withstand current		kA	63	—	63
Rated short circuit making current		kA	50 or 63	Subject to high-voltage fuse	50
Rated short circuit breaking current		kA	–	Subject to high-voltage fuse	20/20
Rated transform current		A	–	1750/1400	–
Rated active load breaking current		A	630	–	–
Rated Closed loop breaking current		A	630	–	630
Mechanical life	Load break switch/breaker	Time	5000	5000	10000
Mechanical life	Isolating switch/earthing switch	Time	5000	5000	5000
Loop resistance		μΩ	≤120	–	≤120
Inflation pressure	Rated inflation pressure(absolute pressure)	bar	1.3	1.3	1.3
Inflation pressure	Minimum inflation pressure(absolute pressure)	bar	1.2	1.2	1.2
Relative rate leakage of gas		%	≤0.02	≤0.02	≤0.02

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