FZW32-24 Series Outdoor High Voltage Isolating Vacuum Load Break Switch

Short Description:

Product Detail

Product Tags

1. Outline

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.

2. Type Description

hrt (2)

3. 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.

4. Technical Parameters

NO.	Name		Unit	Value
1	Rated voltage		KV	24
2	Rated frequency		Hz	50
3	Rated current		A	1250
4	Rated active load breaking current		A	1250
5	Rated closed loop breaking current		A	1250
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: vacuumfracture/phase-to-phase, phase-to earth, isolating fracture		KV	50/65/79
11	Lightning impulse withstand voltage: phase-to phase,phase-to-earth/isolating fracture		KV	125/145
12	Rated short time withstand current(thermal stability)		KA	25
13	Rated short-circuit duration		S	4
14	Rated peak withstand current(dynamic stability)		KA	63
15	Rated short-circuit closing current		KA	63
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	10±1
		Average opening speed	m/s	1.5±0.2
		Three-phase openingasynchronism	ms	<5
		Three-phase closingasynchronism	ms	<2
		Distance between chargedbodies and phase-to-earth	mm	>300
		Auxiliary circuit resistance	μΩ	≥400

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

Installation way

Transverse width

AB phase-to-phase

distance

BC phase-to-phase

distance

Horizontal / vertical

1225mm

500mm

6. 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.

hrt (1)