Load Break Switch (FLN36-12 SF6 Gas Insulated Load Break Switch)

Send Message Request a Quote

Introduction to SF6 Gas Insulated Load Break Switch
The FLN36-12 SF6 load break switch is a double fracture rotary switch that uses sulfur hexafluoride gas as the insulating and arc quenching medium, suitable for 10KV distribution system XGN15-12 RMU. Each load break switch is filled with SF6 gas in pressure of 0.4bar and the gas is permanently sealed.

Load Break Switch (FLN36-12 SF6 Gas Insulated Load Break Switch)

Technical Parameters of SF6 Gas Insulated Load Break Switch

No.	Item			Unit	Value
					FLN36	FLRN36
1	Rated voltage			KV	12
2	Rated frequency			Hz	50
3	Rated current			A	630	125
4	Rated insulation level	1 min power frequency withstand voltage	phase-to-phase, phase to earth	KV	42
			fracture		48
		Lightning impulse withstand voltage (peak)	phase-to-phase, phase to earth		75
			fracture		85
5	Auxiliary circuit 1min power frequency withstand voltage			V	2000
6	Rated short-time withstand current / duration		main switch	KA	20/3
			earthing switch		20/2
7	Peak withstand current and short-circuit breaking current			KA	50	125
8	Rated closed circuit breaking current			A	630
9	Rated active load breaking current			A	630
10	Rated cable charging breaking current			A	10
11	Rated breaking no-load transformer capacity			KVA	1250
12	Breaking transfer current			A	—	1700
13	Expected short-circuit breaking current			KA	—	50
14	Mechanical life			times	2000
15	SF6 gas rated inflation pressure (20 ℃gauge pressure)			MPa	0.04
16	SF6 gas highest pressure (20 ℃gauge pressure)			MPa	0.045
17	Dimensions (width × height × depth)			mm	345 × 420× 730

Fuse Rated Parameters

No.	Rated Voltage (KV)	Fuse Rated Current (A)	Fuse Link Rated Current (A)	Rated Breaking Current (KA)
1	12	40	6.3, 10, 16, 20, 25, 31.5, 40	40
2		100	50, 63, 80, 100	40
3		125	125	50

Operating Mechanism for SF6 Gas Insulated Load Break Switch
1. Operating mechanism (K type for incoming cabinet, A type for outgoing cabinet)

Main switch function: manual and electrical opening and closing operations are both allowed. The closing is only allowed when the earthing switch is in open state.

Earthing switch function: the opening and closing operation can only be done manually. When the main switch is in closed state, the earthing switch is not available.

Auxiliary switch:
Closing position: 2 normally open -2 normally closed;
Opening position: 2 normally open -2 normally closed;
Grounding position: 2 normally open -2 normally closed.

Mechanism indication:
Main switch and earthing switch status indication (K-type operating mechanism)
Main switch and earthing switch status indication, blown fuse indication (A-type operating mechanism)
Shunt trip coil is for A type operating mechanism.

2. Electric operation: automatic opening and closing can be achieved through motor drive and control unit. The motor operating voltage can be AC220V, DC220V, DC48V, DC24V.

Outline of SF6 Gas Insulated Load Break Switch

Scan QR to Read
Links：https://www.globefindpro.com/products/43279.html