24kv Sf6 Indoor Load Break Switch

• Certification: ISO9001
• Trademark: GRENO
• Origin: Xiamen, China
• Model NO.: GSC
• Production Capacity: 50000PCS/Year

Product Description

Product Description

1.General description
GSC-630-24kV indoor medium voltage AC SF6 load break switch is applicable to three-phase AC 50Hz ring network panel and power station,as load control line protection of 24kv power system.Load break switch have load current,closed-loop current to the rated short-circuit breaking current.The combined electrical product can cut off any current to the rated short-circuit breaking current,especially suitable for the distribution of urban residential areas and small secondary substations,industrial and mining enterprises,large shopping malls,airport,subway,hospital,ect.The product conforms to IEC60265-1,IEC420,GB3804 and GB16926.2.Main technical parameter

Item	Unit	Data
Rated voltage	kV	24
Rated frequency	Hz	50
Rated current	A	630	125
Rated active load breaking current		630
Rated active lad breaking current under zaro gauge		630
Rated closed loop breaking current		630
Rated cable charging breaking current		16
Rated transfer current			1400
Rated lighting impulse withstand voltage	kV	125	145
1 min power frequency withstand voltage		65	79
1 min power frequency withstand voltage under zero gauge			24
Rated short time withstand currents(3s)	kA	20
Rated peak withstand current	KA	50
No-load transfer capacity	kVA	2500
Rated short circuit breaking current	kA	20
Rated short circuit making current		50	50(expected)
Rated short time withstand current of earthing switch(3s)		20
Rated peak withstand current of earthing switch		50
Mechanical life load break switch	times	5000
Mechanical life earthing switch		2000
SF6 gas pressure(20C gage pressure)	Mpa	0.04~0.05
Annual air leakage rate		≤0.05%
Opening and closing symmetrical	ms	≤3
Loop resistance	μΩ	≤120/≤180
Rated operating voltage	V	≌220,≌110