Magnewin Energy Pvt Ltd.

Medium Frequency Water Cooled Capacitors For Induction Heating And Melting


• World Class Raw Materials
• Mfgd in state of art infrastructure
• Low Loss
• Highly Reliable
• Long Life Performance
• Environmental Friendly

Medium Frequency Water Cooled Capacitors For Induction Heating And Melting
General Information
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.
- with dead casing, open terminal (2 bushings).
- with live casing, open terminal (1 bushing).
  - IEC 60110-1 Capacitors for Induction Heating & Melting application.
- BIS 9251 (Indian standards).
- DIN EN 60110-1 Power capacitor for Induction Heating Installations.
- VDE 05650-9:1999-09
- Capacitors in accordance with other standards, available upon request.
Quality Management System   Safety Regulations
ISO 9001 accredited byTUV.   When installing the equipment, relevant IEC or VDE recommendations shall be observed.
Quality management system   Altitude
ISO 9001, BS 5750 Qualifications EDF (HN 54-5-05), CSA  
Capacitors are designed to operate at altitudes not exceeding 1500 mtrs.
Impregnant   Dielectric
The capacitors are impregnated with a NON-PCB based fluid which is Jarylec C-1 01. This dielectric fluid is environmentally acceptable, eliminates health and environment hazards.
An imported all film dielectric is used and consists of polypropylene in the form of bi-axially oriented film, hazy on both sides, and in 2 or 3 layers with end and edge folded aluminum foil as electrodes.
Dielectric losses   Permissible Overloads
Dielectric losses@ 50 Cis 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. The dielectric losses, depending on capacitor design, shall be added to losses caused by:
- Internal discharge resistors
- Internal connections
Maximum permissible voltages Capacitors are designed for operation at voltage levels according to the following table.

The amplitudes of the over voltages that can be tolerated without
significant deterioration of the capacitor depend up on the duration, the total number and the capacitor temperature.

Each capacitor unit shall be provided with means of discharging to 75V or less.
Switching over voltages
The residual voltage on a capacitor prior to energization shall not exceed 1 0% of the rated voltage.
Water - Cooled Capacitors
Maximum permissible currents
Capacitor units will be suitable for continuous operation at an r. m. s current of 1.30 times the current that occurs at rated sinusoidal voltage and rated frequency, excluding transients.
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