Medium Voltage Gas Insulated Switchgear - 12kv, 24kv, 36kv

• Certification: ISO9001
• Shell Material: Steel Plate
• Voltage Level: Medium Voltage
• Installation: Fixed
• Structure: Floorstanding
• Current: AC
• Model NO.: GRM
• Transport Package: Wooden Case
• Specification: 12kV, 24kV, 36kV
• Trademark: GRENO
• Origin: Xiamen, China
• Production Capacity: 50000PCS/Year

Product Description

Medium Voltage Gas Insulated Switchgear

Product Description

Safering/safeplus type GRM serie is a SF6 insulated ring main unit for the secondary distribution network.Safering/safeplus type GRM serie can be supplied in 10 different configurations suitable for most switching applications in 12/24/36 kV distribution networks. As an option, GRM serie can be delivered as extendable ring main unit.
Together, Safering/safeplus type GRM serie represent a complete solution for 12/24/36 kV secondary distribution networks.

C - Cable switch module	F - Cable switch module	V - Cable switch module
D - Direct cable connection module	De - Direct cable connection module with earthing switch	M - Metering module

Operation conditions

The rated characteristics of the switchgear are valid under the following ambient conditions:
minimum ambient temperature: - 25 °C
maximum ambient temperature: + 40 °C


Standards

Safering/safeplus type GRM serie is tested according to following IEC-standards:
IEC 62271-1/IEC 62271-100/IEC 62271-102/IEC 62271-103/IEC 62271-105/IEC 62271-200/IEC 60529:

Technical Satisfaction

Project	Cable feeder	Transformer feeder	Breaker V unit
Rated voltage	12/24	12/24	12/24
Rated frequency	50 or 60	50 or 60	50 or 60
Rated insulation level
Power frequency withstand voltage	50/60	50/60	50/60
Lightning impulse withstand voltage	125/145	125/145	125/145
Rated current	630	≤125 Note1	630
Breaking closing ability
Rated active load breaking current	630		630
Active load breaking current	31.5		31.5
Rated cable charging breaking current	10		10
Rated breaking current transfer		2700
Rated short-circuit breaking current		Note2	20
Rated short-circuit current	50		50
Dynamic thermal stability capabilities
Rated short time withstand current	20		20
Rated short duration	3		3
Rated peak withstand current	50		50
Mechanical life Times	3000	3000	3000
Other
Ambient temperature ºC	-40 ~ +60	-40 ~ +60	-40 ~ +60
Gas pressure...ºC when the gauge...	0.03	0.03	0.03
Degree of protection	IP67 Gas tank IP67

Features
· The switchgear is equipped with perfect "Five Prevention" interlock device, which can completely eliminate personnel injury and equipment operation failure caused by human error operation.
· The gas insulated switchgear uses SF6 gas as arc extinguishing and insulating medium
· The switchgear is fully sealed and insulated, and the protection level reaches IP67.
· The switchgear has reliable safe pressure relief channel, which can guarantee the safety of personnel even in extreme cases
· The whole switchgear is not affected by the external environment.
· Cabinet size is small, does not occupy space, and easy to install
· The switchgear can be equipped with electric, remote control and detection devices according to different needs of users