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Protective untriggered gap Ð-77
Protective untriggered gap P-77 designed in metal-ceramic
protects balanced lines and other engineering facilities of movable and fixed equipment from overwork.
Basic electric parameters of protective untriggered gap Ð-77:
The name of the parameter, unit of measure |
Norm |
no less than |
no more than |
Puncture potential, static, V |
170 |
320 |
Puncture potential, dynamic, kV with the speed of voltage increase on the electrodes of the surge absorber
no more than 1 kV/microsecond
no more than 20 kV/microsecond
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1,5
3,0
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Time of disruption lag, microsecond, with the speed of voltage increase on the electrodes of the surge absorber
no less than 1 kV/microsecond
no less than 20 kV/microsecond |
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1,3
0,15
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Time of disruption lag of any interval with respect to another, microsecond (with the speed of voltage increase no less than 1 kV/microsecond)
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0,2
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Time of reduction of discharge gap, millisecond after the holdover of plate current in the impulse
plate current=30 kilo ampere
plate current =20 kilo ampere
plate current =10 kilo ampere |
|
250
130
75
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Static interelectrode capacitance, picofarad |
|
25 |
Dielectric resistance, Megaohm |
100 |
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Instructions on the operation of protective untriggered gap Ð-77:
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While operating protective untriggered gap Ð-77 parameter points shouldn't overrate the admissible values.
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On-position of protective untriggered gap – any position.
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The binding in the device – in the special socket.
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Cooling down – natural cooling.
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Protective untriggered gap Ð-77 is fixed in the device on the cathode flange with the help of 6 screws M6.
We recommend to joint to the electrodes of the gap with the help of screws using the holes on the anode buttons.
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While binding and connecting of the gap in the device the power used shouldn't lead to the curve of button.
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- Ð-77
- Ð-78
- Ð-79
- P-80
- Ð-81, Ð-81-1
- Ð-125, Ð-125-1
- Ð-134, Ð-135, Ð-136, Ð-137, Ð-138
- Ð-134-1, Ð-135-1, Ð-136-1, Ð-137-1, Ð-138-1
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Contact
information:
tel:
+7(4912) 45-62-58
+7(4912) 21-06-13
fax:
+7(4912) 28-20-89
more detail
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