12kV Outdoor High Voltage Vacuum Circuit Breaker on Pole (HZW)

Model NO.: HZW-12/630
Delivery: FOB
Minimum order quantity: 1 piece

Quantity:

Product Description

Basic Info.

Model NO.	HZW-12/630
Poles Number	3
Type	Circuit Breaker
Function	Conventional Circuit Breaker
Certification	ISO9001-2000, CE, CCC
Rated Peak Withstand Current	31.5,40,50,53kA
Rated Short-Circuit Breaking Current	12.5,16,20,25kA
Mechanical Life Time	10,000 (Spring),30,000 (Permanent-Magnet)
Rated Short-Circuit Duration	5s (Spring) ,4s (Permanent-Magnet)
N.W.	254Kg (Spring), 235Kg (Permanent-Magnet)
Trademark	VACEM
Origin	Wenzhou, China

1.General description

HZW 12/630 type outdoor high voltage double power supply automatic switching device is composed of two parts of a high voltage vacuum circuit breaker and intelligent controller. Applicable to AC 50Hz, rated voltage 12kV, rated current 630A, dual power supply system. When a power supply power failure or undervoltage automatic switching to another normal power supply, reliable guarantee the continuity of electricity. At the same time has the short circuit and transition interlock functions such as protection, effectively avoid the unnecessary power supply shock again when load failure. Power failure occurs in the normal power supply, automatic switching device can complete the standby power supply, to ensure the safety and reliability. Also can choose to switch between two powers according to the needs of load. Particularly suitable for the important places do not allow failure, as important to ensure continuous power supply of the electric control device. As a new generation of new design, perfect in performance, safe and reliable, high degree of automation, wide range of use of the cast from the replace dual power automatic switch products. Products to ensure the complete isolation of two high voltage power supply in the design, the mechanical and electrical interlocking perfect and reliable, so it has very high security and reliability. The product is suitable for power supply reliability and safety requirements of high power electric power users, as a dual power supply system of control and protection devices .

Products are widely used in oil fields,mines, metallurgy, chemical industry, railways, communications, machinery and so on 12kV distribution line, industrial and mining enterprises 12kV line.

2.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
Rated insulation level 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-CO-180s-CO
Rated short-circuit breaking current breaking times	time	30
Rated short-circuit making current	kA	31.5, 40, 50, 63
Rated peak withstand current	kA	31.5, 40, 50, 63
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
Opening time rated operating voltage	ms	30-80
Opening time the lowest operating voltage	ms	40-100
Closing time	ms	40-100
Full-breaking time	ms	≤100
Mechanical life time	time	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
Over-current release release current accurancy	%	±10
N.W.	kg	254 (spring), 235 (permanent-magnet)