Products - CHINA·LONGXI ELECTRIC CO.,LTD.

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Products

FZW13-12 Type Outdoor HV AC Permanent-magnet Vacuum Load Break Switch

Summary

FZW13-12 type outdoor HV AC permanent-magnet vacuum load break switch is used in the power system with rated voltage 12kV, three phase AC 50/60Hz, to open and close the load current in power line, the loop current in loop power network, the inductive current of capacity load transformer and the capacitive current of capacitor bank(or cable). It can also close the short-circuit current and withstand the electrodynamic effect and electrothermal effect caused by the short-circuit current. The product conforms to the standards of IEC 60265-1, IEC62271-103 & GB/T3804: 3.6kV~40.5kV AC high voltage load break switch and IEC60694 & GB/T11022: high voltage switch apparatus and control device.

Ambient conditions

1. Altitude: ≤2000m;
2. Ambient temperature: -40℃～+45℃；diurnal temperature rang ≤25℃;
3. Wind speed: ≤35m/s (quivalent to wind pressure of 700Pa)
4. Earthquake intensity: ≤grade 8;
5. Relative humidity: monthly average ≤90%; daily average ≤95%;
6. Ice thickness: ≤10mm
7. Sunlight intensity: ≤1000W/m2
8. Pollution degree: ≤Ⅳ(GB5582);
9. Applicable occasions: no fire and explosion danger, no chemical corrosion and no frequent severe vibration.

Model

Technical specification

No.	Item			Unit	Data
1	Rated voltage			kV	12
2	Rated insulation level	1min P.M Withstand voltage	Dry test		42/48(isolating distance)
			Wet test		34
			Auxiliary loop and control loop		2
		Lightning impulse withstand voltage(peak)			75/85(isolating distance)
3	Rated frequency			Hz	50/60
4	Rated current			A	630、1000、1250
5	Rate short-circuit making current(peak)			kA	40	50	63
6	Rated peak withstand current (peak)				40	50	63
7	Rated short-time withstand current				16	20	25
8	Rated short-circuit duration			s	4
9	Making times of rated short-circuit making current			times	30
10	Closing time			ms	≤50
11	Opening time				≤60
12	Complete breaking time				≤100
13	Arcing time				≤50
14	Mechnical life			times	10000
15	Rated operating voltage and rated auxiliary loop current			V	DC/AC 220
16	Charging time under rated voltage			s	≤8
17	Average opening speed			m/s	1.2±0.2
18	Average closing speed				0.6±0.2
19	Contact close-bouncing time			ms	≤2
20	Three-phase opening non-simultaneity				≤2
21	Allowed accumulative wear thickness for moving and static contacts			mm	3
22	Contact self-closing pressure			N	2000±200
23	DC resistance for each phase loop(with isolator)			μΩ	≤80(120 with isolator)
24	Phase-to-phase spacing			mm	280±1.5
25	Net weight			kg	115

Technical parameter for P.M operating mechanism

No.	Item		Unit	Data
	DC operating power supply, coil short-time duty			CDY-I	CDY- I	CDY- II
1	220V closing/opening coil	Calculating current	A	53	70	100
		resistance(20℃)	Ω	4.2±0.2	3.2±0.17	2.2±0.12
2	Applicable to load break switch’s spec.			16kA	20kA	25kA
3	Power supply voltage			AC220V

Main function features

1. The product can be equipped with a protection and metering current transformer to realize 3-sectional type over-current protection and electricity consumption monitoring according to users’request;
2. The product can be equipped with a built-in remote control device to realize remote operation;
3. Equipped with a reclosing controller, it can realize the function of automatic reclosing.
4. Iron or stainless steel body, manual or electric mechanism is available for free chioce;
5. The product can meet the demands of the users from different regions as it has the norms of miniaturization and plateau types for users to choose.
6. The switch can be equipped with an external isolator according to the users’ request.
7. The operating mechanism can be permanent magnet type which can sensitively and quickly cut off the short-circuit current;
8. All the other functions which the similar products have can be added to the switch according to the users’request.

Outline and installation dimension