FZW32-12 Series Outdoor High Voltage Disconnecting Vacuum Load Break Switch

Vacuum Load Break Switch

Single pole vertical installation
Horizontal installation
Pole top installation

Application

FZW32-24 type outdoor high voltage isolating vacuum break load switch is a new type of load switch which is the integration of mature experience of domestic existing load switch and advanced technology design of external. This load break switch is composed of disconnector, vacuum interrupter and operating mechanism and other parts. By using the principle of vacuum interrupter, with strong arcing ability, reliable performance, long service life, small volume, no explosion danger, no pollution etc advantage. The product can be used in transmission and distribution system of electric power, metallurgy, mine, chemical industry and other departments as control equipment, especially suitable for frequent operation place.

Specifications

Environmental Conditions

a. Altitude ≤1000m;

b. Ambient air temperature -30~+40℃;

c. Relative humidity: daily average ≤95%, monthly average ≤90%;

d. Without frequent violent vibration.

Parameter

Technical Parameters

NO.	Name		Unit	Value
1	Rated voltage		KV	12
2	Rated frequency		Hz	50
3	Rated current		A	630
4	Rated active load breaking current		A	630
5	Rated closed loop breaking current		A	630
6	5%rated active load breaking current		A	31. 5
7	Rated cable charging breaking current		A	10
8	Rated breaking capacity of no-load transformer		KVA	1600
9	Rated breaking capacitor bank current		A	100
10	1min power frequency withstand voltage: vacuum fracture/phase-to-phase, phase-to earth, disconnectingfracture		KV	42/48
11	Lightning impulse withstand voltage: phase-to phase,phase-to-earth/disconnecting fracture		KV	75/85
12	Rated short time withstand current(thermal stability)		KA	20
13	Rated short-circuit duration		S	4
14	Rated peak withstand current(dynamic stability)		KA	50
15	Rated short-circuit closing current		KA	50
16	Mechanical life		Times	10000
17	Vacuum interrupter contact erosion limit		mm	0.5
18	Manual operating torque		Nm	≤200
19	Load break switch vacuum interrupter assembling adjustment	Clearance between opencontacts	mm	5±1
		Average opening speed	m/s	1.1±0.2
		Three-phase openingasynchronism	ms	<5
		Three-phase closingasynchronism	ms	<2
		Distance between chargedbodies and phase-to-earth	mm	>200
		Auxiliary circuit resistance	μΩ	≥400

Installation Ways, Transverse Width and Phase-to-phase Distance

Installation way	Transverse width	AB phase-to-phasedistance	BC phase-to-phasedistance
Single pole horizontal installation	1300mm	750mm	320mm
Singe pole vertical installation	1230mm	500mm	500mm
Singe pole vertical installation	1050mm	400mm	400mm

Basic Structure Drawing

The load break switch with three-phase linkage, is mainly consist of frame, vacuum interrupter components, disconnector components and spring mechanism, disconnector and vacuum interrupter are fixed on frame via insulator, spring is fixed on frame.

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