Description

The AB-3S-40.5 series circuit reclosers are recently-developed pole-mounted intelligent vacuum circuit reclosers of a new generation, which absorb the advanced domestic and foreign technologies adopted by our company. It is intelligent, energy-saving, environemntally-friendly and maintenance-free.

This product integrates such functions as control, protection, measurement, fault positioning, online monitoring and synchronous closing. With full functions and high digitalized and intelligent degree, it is a best choice for power distribution equipment network automation and intellectualization process.

This product conforms to IEC60044-1, IEC60060, IEC60068-2, IEC60099-4, IEC60255-27, IEC60270, IEC60280.1, IEC60529, IEC60694, IEC60815-1, IEC60870-5-101, IEC61000-4, IEC61243-5, IEC62271, standards, etc.

Major Technical Parameters are shown below:

Rated voltage	24 kV
Rated current	630/1,250A
Rated frequency	50/60 Hz
Rated short-duration (1 min) power frequency withstand voltage	65/79 kV
Rated short-circuit breaking current	25/31.5 kA
Rated short-duration withstand current (4s)	25/31.5 kA
Rated lightning impluse withstand voltage(to earth/break)	125/145 kV
Rated short-circuit making current (peak value)	63/80 kA
Rated peak withstand current	63/80 kA
Rated short-circuit current breaking times	30 times
Mechanical service life of vacuum circuit breaker	20,000 times
CT transformation ratio	600/1 or 1,250/1
Rated operating sequence of circuit breaker	O-0.3s-CO-3s-CO-3s-CO-Lockout *
Total weight	200+25 kg

Using Environment:

Description		Unit	Using Environment Value
Surrounding Air	Max Temperature	ºC	+75
	Min Temperature		-50
	Max Daily Temperature Difference	K	30
Altitude		m	≤3,000
Solar Radiation Intensity		W/cm2	0.1
Pullution Class			IV
Icing-Thickness		mm	10
Humidity	Average Value of Daily Relative Humidity	%	≤100
	Average Value of Monthly Relative Humidity		≤95
Earthquake Torelance Ability		Degree	≤8