24kV Indoor Permanent-Magnet Embedded Type Vacuum Circuit Breaker (VAC68)

Model NO.: VAC68-24kV
Delivery: FOB
Minimum order quantity: 1 piece

Quantity:

Product Description

Basic Info.

Model NO.	VAC68-24kV
Poles Number	3
Type	Circuit Breaker
Function	Conventional Circuit Breaker
Certification	ISO9001-2000, CE, CCC
Rated Short Circuit Breaking Current	20,25,31.5,40kA
Rated Peak Withstand Current	50,63,80,100kA
Lightning Impulse Withstand Voltage	125kV
Mechanical Life	20,000 times
Contact Travel	12-14mm
Trademark	VACEM
Origin	Wenzhou, China

1.General description

VAC68-24kV VCB adopts permanent magnet operation mechanism, which is used to switch on and off various kinds of power loads. It is suitable for urban power grid, rural power grid, mine and railway power grid construction and transformation projects, especially for frequent operation within the working current range and occasions with certain requirements for short circuit operation times. This product absorbs advanced technology at home and abroad, and is perfect to combine the permanent magnet operation mechanism, vacuum interrupter and intelligent control. It has the characteristic of intelligence, high reliability, long service life and free maintenance. It is a green environmental protection product without pollution to the surrounding environment.

2.Main technical parameter

Item	Unit	Data
Rated voltage	kV	24
Rated frequency	Hz	50, 60
Rated current	A	630, 1250, 1600, 2000, 2500, 3150, 4000
Rated short circuit breaking current	kA	20, 25, 31.5, 40
Rated peak withstand current	kA	50, 63, 80, 100
Rated short time withstand current	kA	20, 25, 31.5, 40
Rated short circuit making current	kA	25, 63, 80, 100
Breaking times of short circuit current	times	50 (no more than 31.5kA) / 30 (40kA)
Rated operation sequence		O-0.3s-CO-180s-CO (no more than 31.5kA) O-180s-CO-180s-CO (40kA)
Mechanical life	times	20000
Rated current breaking times	times	20000
Rated lightning impulse withstand voltage (full wave)	kV	125
Rated short time power frequency withstand voltage	kV/min	65
Rated short circuit duration	s	4
Rated operation voltage	V	DC110/220, AC110/220
Contact travel	mm	13±1
Contact over travel	mm	3.5±0.5
Closing speed	m/s	0.5-1.1
Opening speed	m/s	1.1-1.7
Contact bouncing duration at opening and closing operation	ms	≤3
Three phase closing and opening simultaneity	ms	≤2
Closing time	ms	20≤t≤75
Opening time	ms	13≤t≤65
Driving power voltage of permanent magnet mechanism	V	DC220
Energy storage time	s	<10
Closing control time	ms	≌110, ≌220
Opening control time	ms	≌110, ≌220
Main circuit resistance	µΩ	≤45
Phase to phase distance	mm	150/210/275(kA)