12kv Outdoor M. V. Vacuum Circuit Breaker with Spring Operating Mechanism

• Customization: Available
• Certification: CCC, ISO9001, GB
• Shell Material: Stainless Steel
• Model NO.: Hzw-12/630
• Voltage Level: Medium Voltage
• Installation: Fixed
• Structure: Withdrawable
• Current: AC
• Rated Peak Withstand Current: 31.5,40,50,53ka
• Rated Short-Circuit Breaking Current: 12.5,16,20,25ka
• Mechanical Life Time: 10000 (Spring),30000 (Permanent-Magnet)
• Rated Short-Circuit Duration: 5s (Spring) ,4s (Permanent-Magnet)
• N.W.: 254kg (Spring), 235kg (Permanent-Magnet)
• Transport Package: Carton
• Trademark: VACEM
• Origin: Wenzhou, China
• HS Code: 85352100

Product Description

HZW-12/630 Outdoor Dual Power Source Automatic Switching Device

General description

The HZW 12/630 type outdoor high voltage double power supply automatic switching device is a cutting-edge product that combines a high voltage vacuum circuit breaker with an intelligent controller. Designed for AC 50Hz, with a rated voltage of 12kV and a rated current of 630A, this device is specifically tailored for dual power supply systems. Its primary function is to automatically switch to an alternate power supply in the event of a power failure or undervoltage, ensuring a seamless and uninterrupted flow of electricity. 
Equipped with advanced features such as short circuit and transition interlock protection, this device effectively prevents unnecessary power supply shocks when there is a load failure. In the event of a power failure in the normal power supply, the automatic switching device swiftly activates the standby power supply, guaranteeing safety and reliability. Additionally, it offers the flexibility to switch between two power sources based on the specific requirements of the load. 

This device is particularly well-suited for critical locations where failure is not an option, as it ensures a continuous power supply for essential electric control systems. As a new generation product, it boasts exceptional performance and reliability, making it an ideal choice for various applications. 

Main technical parameter

 

Item		Unit	Data
Rated voltage		kV	13,12,10,6
Rated insulation level	1min P.F. withstand voltage	kV	dry, isolating fracture 42/48,  wet,34
	Lightning impulse withstand voltage(peak)	kV	75/78 isolating fracture
Rated frequency		Hz	50/60
Rated current		A	630,1000,1250
Rated short-circuit breaking current		kA	12.5,16,20,25
Rated operating sequence			O-0.3s-C0-180s-CO
Rated short-circuit breaking current breaking times		Times	30
Rated short-circuit making current		kA	31.5,40,50,53
Rated peak withstand current		kA	31.5,40,50,53
Rated short time withstand current		kA	12.5,16,20,25
Rated short-circuit duration		s	5 (spring) ,4 (permanent-magnet)
Opening time	The highest operating voltage	ms	30-80
	Rated operating voltage	ms	30-80
	The lowest operating voltage	ms	40-100
Closing time		ms	40-100
Full-breaking time		ms	≤100
Mechanical life time		Times	10000 (spring),30000 (permanent-magnet)
Closing power		J	≤8
Rated input efficiency of energy-stored motor		W	≤70
Energy-stored time under rated voltage		ms	≤40
Rated operating voltage and rated voltage of auxiliary circuit		V	DC,AC220
Over-current release	Rated current	A	5
	Release current accurancy	%	±10
N.W.		kg	254 (spring), 235 (permanent-magnet)

For more switchgear parts, pls refer to insulation parts: 
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