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Failsafe arresters

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*Failsafe arresters

 

Arresters equipped with this mechanism will forcibly short circuit an arrester in the event of irregular current (follow current), in order to protect the circuit board from damage.
In the event of some irregularity, the board may well have been defective, and so should be thoroughly examined or replaced.

 
 
 
 
Type 3YVH-230[ ]F5 3YVH-250[ ]F5 3YVH-350[ ]F2
DC sparkover voltage 100V/s 180〜300V 280V〜420V
2000V/s 250V±20%
Impulse sparkover voltage 100V/μs <=700V
1kV/μs <900V <=900V <900V
Insulation resistance DC100V >1,000MΩ >=1,000MΩ >1,000MΩ
Capacitance 1kHz <3.0pF
1MHz <=3.0pF <3.0pF
Holdover voltage t ITU-T K.12/Test3 <150ms
ITU-T K.12/Test2 80V <150ms
Impulse life 10/1000μs 100A 300times  
10/1000μs 100A×2 300times 300times
 
 
Type

3Y06-230K1F1(TP)

3Y06-230[ ]F1
DC sparkover voltage 100V/ 230V±20% 230V±20%

Impulse sparkover voltage

1kV/μs <=700V <=700V
Insulation resistance DC100V >=10,000MΩ >=10,000MΩ
Capacitance 1MHz <=3.0pF <=3.0pF
Holdover voltage ITU-T K.12/
Test 3 135V
<=150ms <=150ms
Impulse life 10/1000μs 200A×2 300times 300times
Thermo paint  Yes
 
Type 3YVJ-230[ ]F4 3YVJ-350[ ]F2
DC sparkover voltage 100V/s 230V±20% 350V±20%
Impulse sparkover voltage 100V/μs <=600V <=600V
10kV/μs <=900V
Insulation resistance DC100V >=10,000MΩ >=10,000MΩ
Capacitance 1MHz <=3.0pF <=3.0pF
Holdover voltage
Impulse life 10/1000μs 200A×2 300times