40.5kV Outdoor High Voltage Vacuum Circuit Breaker on Pole (ZW37)

Model NO.: ZW37-40.5kV
Delivery: FOB
Minimum order quantity: 1 piece

Quantity:

Product Description

Basic Info.

Model NO.	ZW37-40.5kV
Poles Number	3
Type	Circuit Breaker
Function	Conventional Circuit Breaker
Certification	ISO9001-2000, CE, CCC
Rated Short Circuit Duration	4s
Short-Circuit Current Breaking Times	20 times
Mechanical Life	10,000 times
Rated Operation Voltage	220V (DC;AC)
Rated Operating Sequence	O-0.3s-Co-180s-Co
Trademark	VACEM
Origin	Wenzhou, China

1.General description

ZW37-40.5 type vacuum circuit breaker is outdoor high voltage switch equipment with rated voltage 40.5 kV, tri-phase AC 50 Hz. It mainly used to open and close electric power system load current, overload current and short circuit current. Applicable to substations, industrial and mining enterprises and the urban and rural electric protection and control, especially suitable for frequent operation sites and city network automation distribution network.

2.Normal service conditions

1) Altitude above sea level not exceeding 1000m

2) Air polluted degree: IV

3) Environmental ambient temperature:-35ºC~+40ºC

4) Ice covering thickness: 20mm

5) Monthly average relative humidity not exceeding 90%

Daily average relative humidity not exceeding 95%

6) Wind speed not exceeding 34m/s

7) Installation site: without flammable, explosive or corrosive material, and frequent violent vibration.

8) Earthquake intensity not exceeding 8 degree

3.Main technical parameter

Item	Unit	Data
Rated voltage	kV	40.5
Rated insulation level Lightning impulse withstand voltage	kV	185
Rated insulation level 1min P.F.withstand voltage	kV	95
Rated current	A	630, 1250, 1600, 2000
Rated short-circuit breaking current	kA	20	25	31.5
Rated short circuit making current (peak)	kA	50	63	80
Rated short time withstand current	kA	20	25	31.5
Rated peak withstand current	kA	50	63	80
Rated short circuit duration	s	4
Rated operating sequence		O-0.3s-CO-180s-CO
Rated short-circuit current breaking times	time	20
Mechanical life time	time	10000
Rated operation voltage	V	220(DC, AC)