Kodery Zw7-40.5 Series Outdoor Electrical Equipment Vacuum Circuit Breaker

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Manual Type
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: Recloser
• Model NO.: ZW7-40.5
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
• Certification: ISO9001-2000, CE, CCC
• MOQ: 1PCS
• Transport Package: Normal Export Case
• Specification: 2465*500*2400
• Trademark: KODERY
• Origin: China
• HS Code: 8537209000
• Production Capacity: 50pieces/Week

Product Description

Product Description

ZW7-40.5 type outdoor high voltage vacuum circuit breaker is the three-phase AC 50Hz outdoor high voltage electrical equipment, suit for control and protection of 20-40.5kV transmission and distribution system; can also be used for sectional circuit breaker and switching capacitor bank occasions; this product can be matched with piecewise controller, reclose device can realize the power system intelligent segmentation, reclose control. And can add the current transformer for measurement and protection. Circuit breaker equipped with spring or electromagnetic actuator, reliable mechanical performance, frequent operation; no fire and explosion danger; circuit breaker conforms to the national standard GB19841989 "AC high voltage circuit breaker" and the International Electrotechnical Commission Standard IEC56, IEC62271-100 "high voltage AC circuit breaker" requirements.

Product Parameters

Item	Unit	Parameter
Voltage, current parameters
Rated voltage	kV	40.5
Rated short time power frequency withstand voltage (Imin)	kV	95
Rated lightning impulse withstand voltage (peak)	kV	185
Rated current	A	1250, 1600, 2000
Rated short-circuit breaking current	kA	25, 31.5
Rated operating sequence		O-0.3s-CO-180s-CO
Rated short-circuit current breaking times	times	12
Rated short-circuit closing current (peak)	kA	63.80
Rated peak withstand current	kA	63.80
Rated short-time withstand current	kA	25, 31.5
Rated short-circuit current duration	S	4
Average opening velocity	ms	1.5±0.2
Average closing speed	ms	0.7±0.2
Contact closing bounce time	ms	<5
Three-phase close (open) synchronization error	ms	<2
Closing time	ms	<150
Opening time	ms	<60
Mechanical life	times	10000
Rated operational voltage and auxiliary circuits rated voltage	V	DC220, AC220
DC resistance of circle every phase (not including transformer)	μΩ	<100
Dynamic, static contact allowed to wear thickness	mm	3
Weight	kg	800

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