YB()-12/0.4 KV

Service conditions

1. The altitude shall not exceed 1000m;

2. Ambient temperature: - 25 ° C ~ + 40 ° C;

3. Relative humidity: the daily average value shall not be greater than 95%, and the monthly average value shall not be greater than 90%;

4. Installation site: a place without fire, explosion hazard, conductive dust, chemical corrosive gas and violent vibration. If the above conditions are exceeded, the user can negotiate with our company.

Type meaning

华通型号说明.png

Main technical parameters

Technical parameters of load switch

No.	Name	Unit	Load switch FN12-12	Vacuum load switch FZN12-12
1	Rated voltage	KV	10
2	Maximum operating voltage	KV	12
3	Rated frequenc	HZ	50
4	Rated current	HZ	630
5	Rated breaking current	A	630
6	Thermal stability current（effective value）	KA/S	20/2	20/4
7	Dynamic stable current	KA	50	50
8	Short circuit making current	KA	50	50
9	Full load breaking times	次	20	10000
10	Mechanical life	次	2000	10000
11	1min power frequency withstand voltage (phase to phase and to ground)	KV	42	42
12	Lightning impulse voltage(phase to phase and to ground)	KV	75	75

Technical parameters of high voltage fuse

Model		Rated voltage（KV）	Rated current（A）	Breaking current（KA）	Melt rated current（A）
British model	Domestic model	Rated voltage（KV）	Rated current（A）	Breaking current（KA）	Melt rated current（A）
SDL❊J		12	40	31.5	6.3,10,16,20,25,31.5,40
SFL❊J	XRNT-12	12	100	31.5	50,63,71,80,100
SKL❊J		12	125	31.5	125

Technical parameters of Low voltage circuit break

Model	Release form	Rated current of release （A）	On-off capacityKA（AC380V）
DW15-630	Thermoelectric magnetic or electronic type	315, 400, 630	40
DW15-1000		600，800，1000	50
DW15-1600		1600	50
DW15-2500		1600,2000,2500	60
CW1-2000	Intelligent	630,800,1000,1250,1600,2000	65（80）
CW1-3200	Intelligent	2000,2500,3200	100

Legend of technical scheme

Scheme No.							01				02		03
Single line diagram of main circuit
Purpose							Terminal type Cable incoming /1 outgoing line				Terminal type incoming line		Terminal type overhead incoming line
Cabinet type							HXGN-12				HXGN-12		HXGN-12
Selection of primary equipment
			Vacuum circuit breake VS1,ZN28
			Load switch FN,FZN,FLN				1				1		1
			Disconnector GN
			Fuse XRNT				3				3		3
			Fuse RN2
			Lightning arrester HY5W				3				3		3
			Live display GSN				1				1		1
			Current transformer LZZBJ
			Voltage transformer JDZ
Scheme No.							04				05		06
Single line diagram of main circuit
Purpose							Terminal type Vacuum circuit breake incoming line				Terminal type incoming line metering / 1 outgoing line		Terminal type Cable incoming /1 outgoing line/metering
Cabinet type							XGN66-12				HXGN-12		HXGN-12
Selection of primary equipment
	Vacuum circuit breake VS1,ZN28						1
	Load switch FN,FZN,FLN										1		1
	Disconnector GN						2
	Fuse XRNT										3		3
	Fuse RN2										3		3
	Lightning arrester HY5W						3				3		3
	Live display GSN						1				1		1
	Current transformer LZZBJ						2				2		2
	Voltage transformer JDZ										2		2
Scheme No.					07			08						09
Single line diagram of main circuit
Purpose					Terminal type incoming line metering / Pt / 1 outgoing line			Terminal type incoming line metering / Metering / 1 outgoing line						Terminal type circuit breaker Incoming/ Metering
Cabinet type					HXGN-12			HXGN-12						XGN66-12
Selection of primary equipment
				Vacuum circuit breake VS1,ZN28										1
				Load switch FN,FZN,FLN	1			2
				Disconnector GN	1									2
				Fuse XRNT	3			3						3
				Fuse RN2	3			3						3
				Lightning arrester HY5W	3			3						3
				Live display GSN	1			1						1
				Current transformer LZZBJ	2			2						4
				Voltage transformer JDZ	2			2						2
Scheme No.						10				11		12
Single line diagram of main circuit
Purpose						Terminal type circuit breaker Incoming/PT/1 outgoing line			Terminal type 1 outgoing line/ 2 outgoing line			Terminal type incoming line metering/2 outgoing line
Cabinet type						HXGN66-12 HXGN-12			HXGN-12			HXGN-12
Selection of primary equipment
		Vacuum circuit breake VS1,ZN28				1
		Load switch FN,FZN,FLN				1			3			2
		Disconnector GN				3			1
		Fuse XRNT				3			6			6
		Fuse RN2				3						3
		Lightning arrester HY5W				3			3			3
		Live display GSN				1			1			1
		Current transformer LZZBJ				2			2			2
		Voltage transformer JDZ				2						2