AVR-24 Smart Compact Solid Insulated Secondary Switchgear (RMU) 24kv

The AVR-24 type intelligent compact solid insulation switchgear is China\'s first-developed intelligent permanent-magnetic vacuum switchgear developed and manufactured by our company with independent intellectual property rights, which is based on the development demands of smart grid and adopts the design concept of being "

The AVR-24 type intelligent compact solid insulation switchgear is China's first-developed intelligent permanent-magnetic vacuum switchgear developed and manufactured by our company with independent intellectual property rights, which is based on the development demands of smart grid and adopts the design concept of being "intelligent, energy-saving, environmentally-friendly and maintenance-free". It integrates such functions as measurement, control, protection and communication etc, with high intelligent degree. This product is suitable for 50Hz, 12kV electric power systems, extensively applied to industrial and civil cable ring networks and power supply terminal projects; It is a top choice to guarantee safe, reliable, economical and efficient operation of the power network.

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, 250 A
Rated frequency	50 Hz
Rated short-duration (1 min) power frequency withstand voltage	42 kV
Rated short-circuit breaking current	25 kA
Rated short-duration withstand current (4s)	25 kA
Rated lightning impluse withstand voltage	110 kV
Rated short-circuit making current (peak value)	63 kA
Rated peak withstand current	63 kA
Rated short-circuit current drop-out times	30 times
Mechanical service life of vacuum circuit breaker	10, 000 times
Mechanical service life of disconnectors/ground switch	2, 000 times
Protection degree of enclosure	IP4X
Rated operating sequence of circuit breaker	O-0.3s-CO-180s-CO
Rated work power supply	AC/DC 100/220V

Using Environment:

Description		Unit	Using Environment Value
Surrounding Air	Max Temperature	ºC	+50
	Min Temperature		-50
	Max Daily Temperature Difference	K	30
Altitude		M	≤2, 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