Capacitors Manufacturers

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.

APPLICATION

PRODUCT RANGE

• Protection of Motors and Generators against Inter-Turn fault.
• High voltage Surge & Cable fault finding.
• LAVT Panel.
• Protection against surges.

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

An ISO 9001 : 2015 Certified Company