ZW32-12 Outdoor High Voltage Vacuum Circuit BreakerDetailed product description：

ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker

ZW32-12 outdoor high-voltage vacuum circuit breaker (hereinafter referred to as the circuit breaker) is used in three-phase power systems with AC 50HZ and voltage of 10-12KV. It is used for breaking and closing loads, and has overload and short-circuit protection functions, meeting control and measurement requirements. It can also achieve remote control, monitoring, etc. Suitable for protection and control in power distribution systems of substations and industrial and mining enterprises, as well as frequent operation sites in rural power grids.

1.3 Model Meaning


2. Environmental conditions for use
a. Surrounding air temperature: upper limit+40 ℃, lower limit -30 ℃
b. Altitude ≤ 2000m (if altitude needs to be increased, the rated insulation level will be correspondingly increased);
c. Wind pressure: not exceeding 700pa (equivalent to a wind speed of 34m/s)
d. Amplitude: seismic intensity of 8 degrees;
e. Pollution level: Level III
f. Maximum daily temperature difference: not exceeding 25 ℃

Technical parameters of ZW32-12 outdoor high-voltage vacuum circuit breaker

serial number	name			Unit	data
one	rated voltage			KV	twelve
two	Rated insulation level	1-minute power frequency withstand voltage	Dry test		forty-two
			Warm test		thirty-four
		Lightning impulse withstand voltage (peak value)			seventy-five
three	rated current			A	630:400:200
four	Rated short-circuit breaking current			KA	20:16:12.5
five	Rated operating sequence				Split -0.3- Split -180s - Split
six	Rated short-circuit breaking current times			time	thirty
seven	Rated short-circuit closing current (peak)			KA	fifty
eight	Rated peak withstand current
nine	Rated short-time withstand current				twenty
ten	Rated short-circuit duration			S	four
eleven	Opening time (excitation trip)		Maximum operating voltage	ms	20-45
			Rated operating voltage
			Minimum operating voltage
twelve	closing time
thirteen	Total breaking time				25-50
					≤100
fourteen	arcing time				≤20
fifteen	mechanical life			time	ten thousand
sixteen	Closing power			J	seventy
seventeen	Rated input power of energy storage motor			W	≤40
eighteen	Rated operating voltage and rated voltage of auxiliary circuit			V	DC220
					AC220
nineteen	Energy storage time at rated voltage			S	<10
twenty	over-current release		rated current	A	five
			Accuracy of tripping current	%	±10

Outline and Installation Dimensional Drawing of ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker

ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker