GSM-12/24 unit type SF6 RMU with SF6 load switch as main switch, for whole cabinet is suitable for electric distribution automation and compact also expandable metal close switchgear. It characters in its simple structure, flexible operation, reliable interlocking and convenient installation etc., which can provide the satisfactory technical projects both for different application occasions and users. With the adoption of sensor technology and the protection relay up to date, plus the advanced technology and flexible assembly project, GSM-12/24 unit type SF6 RMU can completely meet the requirement of continuously variable market. It can take self-produced GSC-12/24 load break switch; also according to user's demand can be assembled with the internationally top- ranking series vacuum circuit breaker with permanent magnetic mechanism made by famous brand SF6 circuit breaker. Operational methods for the main switch inside ring main unit can be either manual or electric power driven. And It can meet the requirement of "Four Controls" when matched with FTU and RTU.
Standard
GSM-12/24 series units meet all the following recommendations, standards and specifications:
1.recommendations IEC:
60694: Common specifications for high-voltage switchgear and controlgear standards. 62271- 200: A.C. metal-enclosed switchgear and controlgear for rated voltage above 1kV and up to including 52 kV.
60265: High voltage switches for rated voltages of 52 kV and above. 62271-105: High voltage alternating current switch-fuse combinations.
60255: Electrical relays.
62271-100: High-voltage alternating current circuit breakers.
62271-102: High-voltage alternating current disconnectors and earthing switches.
2. UTE standards:
NFC 13.100: Consumer substation installed inside a building and fed by a second category voltage public distribution system.
NFC 13.200: High voltage electrical installations requirements.
NFC 64.130: High voltage switches for rated voltage above 1kV and less than 52 kV. NFC 64.160: Alternating current disconnectors and earthing switches.
3. EDF specifications:
HN 64-S-41: A.C. metal-enclosed switchgear and controlgear for rated voltages above 1kV and up to and including 24 kV.
HN 64-S-43: Electrical independent-operating mechanism for switch 24 kV - 400 A.
1.recommendations IEC:
60694: Common specifications for high-voltage switchgear and controlgear standards. 62271- 200: A.C. metal-enclosed switchgear and controlgear for rated voltage above 1kV and up to including 52 kV.
60265: High voltage switches for rated voltages of 52 kV and above. 62271-105: High voltage alternating current switch-fuse combinations.
60255: Electrical relays.
62271-100: High-voltage alternating current circuit breakers.
62271-102: High-voltage alternating current disconnectors and earthing switches.
2. UTE standards:
NFC 13.100: Consumer substation installed inside a building and fed by a second category voltage public distribution system.
NFC 13.200: High voltage electrical installations requirements.
NFC 64.130: High voltage switches for rated voltage above 1kV and less than 52 kV. NFC 64.160: Alternating current disconnectors and earthing switches.
3. EDF specifications:
HN 64-S-41: A.C. metal-enclosed switchgear and controlgear for rated voltages above 1kV and up to and including 24 kV.
HN 64-S-43: Electrical independent-operating mechanism for switch 24 kV - 400 A.