Electrical networks experience surges wherein a voltage or a current rises rapidly to unsafe values and destroys the dielectric insulation. These along with partial discharges are blamed for the majority of failures of electrical equipment of all types.

Surge capacitors work by absorbing the energy from electrical surges, providing protection to the equipment. Lightning or Switching surges can cause damage to the turn-to-turn insulation of rotary machines, transformers. Connecting surge capacitors line to ground at the motor terminals prevents this damage. For a more comprehensive protection scheme, surge capacitors may be used in conjunction with surge arresters. This surge pack modifies both the wave shape and magnitude.

• Simple to install and requires no maintenance Low-loss, Longer Life,
• Environmentally Friendly and Leakfree Terminations
• Highly recommended for protection against Turn-to-Turn Insulation of Rotating Machines and other allied Power Generation and Transmission sub station auxiliaries

Technical Specifications:

• Rating :  0.1, 0.125, 0.25, 0.5 µ
• Voltage Rating : 3.3KV…….40KV
• Mounting Type : Enclosed or Open-air Configuration
• Application Standards : IS 11548 (1986) / IEC 60871
• Installation Location : Indoor or Outdoor, can be mounted vertically or horizontally
• Raw Materials : From Reputed Overseas and Genuine Manufacturers.
• Enclosed or Open-air configurations.
• High frequency transient over voltage surge suppression

Benefits:

• Protection of HT motors, transformers, switchgears and generators from voltage spikes, surges and other transients etc
• Reduced medium voltage motor failures from voltage surges due to lightning, faults, and switching events.
• Reduced downtime and material waste from motor failure.
• Bus duct Protection
• Power generation and transmission sub stations (Generators, power station auxiliaries).
• Pumping (Oil pipelines, water pumping stations).
• Chemical and Petrochemicals industries
• Induction and Arc furnaces.
• Synchronous Condenser
• Along with Shunt Reactors

Medium Frequency water cooled capacitors are designed for very high levels of safety, reliability and life expectancy. Medium Frequency Water Cooled Capacitors from 1 kV up to maximum 5000 volts, to maximum 7000 kVAr and frequency up to 50 kilocycles for indoor use. Dielectric losses at 50 Cycles/sec in fresh condition are approx. 0.2 to 0.3 watts/ kvar up to 5 KHz, and 0.5 watts/ Kvar up to 50 KHz and reduce after 500 operating hours to a stable state

Other details:

• With dead casing, open terminal (2 bushings)
• With live casing, open terminal (1 bushing)

Application:

• Water Cooled capacitors for Induction heating and melting applications for indoor use.