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Surge Absorbing / Protective Capacitor

surge protection capacitors are of special type capacitors. Its application is of specialized nature i.e. in case of abnormal condition.

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Surge Absorbing / Protective Capacitor

 
We are Manufacturer & Exporter of Surge Absorbing / Protective Capacitor. This product is used to protect generator and heavy motor from intern fault.
SHARDA’s surge protection capacitors are special types of capacitors. Its application is of a specialized nature i.e. in case of abnormal condition. These capacitors are designed for protection of large rotating machines such as motors & generators. At the time of over voltage during electric storms produces surges to electrical equipment’s connected to system. The voltage stress between turns of multi turn coil sets a limitation and surge voltage causes breakdown between turn to turn insulation resulting in short circuited turns. To protect from this situation surge capacitors are used.
These capacitor compliance with ISS std. 11548:1986.
 
 
Surge Absorbing / Protective Capacitor
APPLICATION
Protection of Motors and Generators against Inter-Turn fault.
High voltage Surge & Cable fault finding.
LAVT Panel.
Protection against surges.
 
PRODUCT RANGE
Rated Voltage 4 kV AC to 60 kV AC
Rated Capacitance 0.1 mFD to 0.5 mFD
No. of phase 1 Ph or 3 Ph
   
 
 

 
General rating requires for rotating machines
Machine Voltage  rating
(kV / r.m.s.)
Surge Capacitor Voltage rating
(kV / r.m.s.)
Capacitance
(µF)
Arrestor grounded
(kV / r.m.s.)
Arrestor effectively grounded
(kV / r.m.s.)
0.65 0.65 1.0 0.65/0.75 0.65/0.75
2.4 2.4 0.5 3.0 3.0
4.16 4.16 0.5 3.0 4.5
4.8 4.8 0.5 4.5 6.0
6.9 6.9 0.5 6.0 7.5
11.5 11.2 0.25 9.0 12.0
13.8 13.8 0.25 12.0 15.0
 
 
Technical Data Sheet
Sr. No. Description Technical Details
1 Reference Is   11548  -  1986
2 Temperature 50˚c
3 Frequency 50Hz
4 Connection 1f, 3f, D or U
5 Protection Internal , External Fusing
6 Maximum Voltage 110 %  Of  Rated Voltage
7 Rated  Output Highest System
Voltage kV
Surge Capacitor Voltage kV Capacitance Per Phase μFD (Microfarads)
3.6 6 0.5 and 0.5
7.2 12 0.25 and 0.5
12 18 0.25 and 0.5
24 28 0.25
36 40 0.125 &0.25