24kv Ring Main Unit Gas Insulated Ring Main Unit Rmu

• Type: Distribution Metering Box
• Structure: Fixed Board
• Certification: ISO9001:2000, VDE, CCC
• Form: Partly-welded Type
• Operation Voltage: High Voltage
• Size: 1 Uint
• Model NO.: FGRMU
• Application Range: High-rise Buildings
• Shell Material: Stainless Steel
• Shell Protection Grade: IP56
• Brand: Farady
• Product Type: 24kv Ring Main Unit Gas Insulated Ring Main Unit R
• Rated Voltage: 12/24kv
• Rated Frequency: 50/60Hz
• Rated Current: 630A
• Transport Package: Standard Export Wooden Case
• Trademark: FARADY
• Origin: China
• HS Code: 8537209000
• Production Capacity: 50000

Product Description

Overview

SF6-insulated ring main unit and SF6-insulated compact switchgear are used in medium voltage distribution networks. They offer a sealed stainless steel tank which contains all the live components and switching functions. The transformer is protected either by a switch fuse combination or a vacuum circuit breaker.

SF6-insulated ring main unit can be supplied as a 2, 3 or 4-way unit in standard configurations with additional equipment according to customer specification.

SF6-insulated compact switchgear has a unique flexibility due to its extendibility and the possible combination of fully modular and semi-modular configurations, with a maximum of 5 modules in one SF6-tank.

The units are delivered from the factory ready for installation. Routine tests are carried out on all units/ modules before dispatch. No special tools are required for installing the equipment.

 

Technical Parameters

Gas Insulated Switchgear		C-module		F-module		V-module
		Switch disconnector	Earthing switch	Switch-fuse combination	Earthing switch	Vacuum circuit-breaker	Earthing switch
Rated voltage	kV	12/17,5/24	12/17,5/24	12/17,5/24	12/17,5/24	12/17,5/24	12/17,5/24
Power frequency withstand voltage	kV	28/38/50	28/38/50	28/38/50	28/38/50	28/38/50	28/38/50
Impulse withstand voltage	kV	95/95/125	95/95/125	95/95/125	95/95/125	95/95/125	95/95/125
Rated current	A	630/630/630		2001)		200/200/200
Breaking capacities:
--active load	A	630/630/630
--closed loop	A	670/670/670
--off load cable charging	A	141/141/141
--off load transformer	A			20/20/20
--earth fault	A	205/160/160
--earth fault cable charging	A	117/91/91
--short-circuit breaking current	kA			see 2)		16/16/16
Making capacity	kA	52,5/40/40	52,5/40/40	see 2)	12,5/12,5/12,5	40/40/40	40/40/40
Short time current 0,5 sec 3)	kA					16/16/16
Short time current 1 sec 4)	kA				5/5/5	16/16/16
Short time current 3 sec 5)	kA	21/16/16	21/16/16				16/16/16

Note: 1) Depending on the current rating of the fuse-link     

2) Limited by high voltage fuse-links  

3) Maximum rating for bushings Interface A (200 series plug-in)

4) Maximum rating for bushings Interface B (400 series plug-in)  

5) Maximum rating for bushings Interface C (400 series bolted)



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