Description

Product introduction

YFV-24KV-800A circui tbreaker has the advantages of easy installation,litle maintenance,long life,small size,low price,safety and reliability.

This product meets technical requirements of GB1984-89,GB/T1984-2003″AC high voltage circuit breaker”.

Major loop:800A-20KA(4s)、25KA(3s),Mechanical life:10000 times.

Ground loop:20KA(2s),Mechanical life:20000 times.

Applying ambient Conditions

Altitude is not more than 1000m,earthquake intensity is not more than 8 degrees.

Pollution resistance level: .

Ambient temperature:-40℃~+140℃,relative humidity daily average≤90%,monthly average≤90%.

Frequentl vibrating installtion sites,places with water vapor,gas,chemical corrosive deposits,salt spray,dust and dit,andfires,that significantly affect the performance of the mechanism and places with fire or explosion hazards are not suitable.

Technical data table 1

No.	Item	Unit	Data
1	Rated frequency	Hz	50
2	Rated current	A	630
3	Rated short time withstand current	kA	20/25
4	Rated peak withstand current	kA	50
5	Rated short circuit duration	s	4
6	Rated short circuit closing current	kA	50
7	Rated operation sequence		O-0.3s-180s-CO

Technical data table 2

No.	Item	Unit	Data
1	Circuit breaker main loop resistance	μΩ	≤30
2	Overtravel	mm	2-3
3	Spacing	mm	8-10
4	Bounce	ms	≤2
5	Opening average speed	m/s	0.6-1.4
6	Closing average speed	m/s	0.4-1.1
7	Opening three phase asynchronous	ms	≤2
8	Closing three phase asynchronous	ms	≤2

Outline and dimensions of installation