Water Cooled Capacitors
(Medium Frequency)
High-performance water cooled capacitors designed for medium frequency applications where high reactive power, continuous duty, and efficient thermal management are critical. Engineered for induction heating and melting systems requiring stable electrical performance and long service life.
VOLTAGE RANGE
250 V – 5 kV
OUTPUT CAPACITY
Up to 10,000 kVAR
FREQUENCY
Up to 50 kHz
MOUNTING
Horizontal & Vertical
COOLING TYPE
Water Cooled
INSTALLATION
Indoor Use
Key Performance Features
Engineered for Medium Frequency Applications
Advanced Dielectric and Electrode System
Manufactured using imported bi-axially oriented double side hazy polypropylene film as dielectric with 99.9% soft annealed aluminium foil as electrode.
Precision Winding and Assembly
Capacitor elements are wound on semi-automatic winding machines in a Class 100 clean environment. Edge folding and foil folding techniques are applied to avoid voltage stress at foil edges and improve partial discharge inception voltage.
Vacuum Drying and Impregnation
Dry packs are wrapped with multiple layers of high-quality insulating paper and housed in pre-treated, degreased aluminium containers. Units are dried and vacuum impregnated with highly purified and degassed non-toxic, non-PCB impregnant.
Cooling and Terminal Design
Water cooling pipes are made of electrolytic grade annealed copper and pressure tested for leak-free operation. Porcelain bushings of required BIL are fitted to ensure safe and reliable performance.
Medium Frequency Industrial
Heating Solutions
Water cooled capacitors are widely used in applications requiring high-frequency power and continuous operation, providing stable performance and long service life.
Induction Heating Systems
Efficiently powers high-frequency induction heaters for precise metal heating applications.
Induction Melting Furnaces
Supports stable and continuous operation for medium frequency melting processes.
Medium Frequency Heating Installations
Reliable capacitor performance in industrial heating circuits for metals and alloys.
Industrial Heat Treatment Equipment
Optimized for continuous operation in quenching, tempering, and annealing equipment.
High Power Resonant Circuits
Ensures stable resonance in high-power MF circuits for industrial applications.
Technical Specifications
Detailed electrical and mechanical parameters
- Voltage Range: 250 V to 5 kV
- Output Capacity: Up to 10,000 kVAR per capacitor
- Frequency Range: Up to 50 kHz
- Container Material: Aluminium sheet
- Mounting: Horizontal or Vertical
- Installation: Indoor use only
- Construction: Dead casing or live casing
- IEC 60110-1 Capacitors for Induction Heating and Melting Applications
- IS 9251 Capacitors for inductive heat generating plants (40 Hz – 24 kHz)
- DIN EN 60110-1
- VDE 0560-9
- Dielectric losses at 50°C during initial energisation:
- 0.2–0.3 W/kVAR up to 5 kHz
- 0.5 W/kVAR above 5 kHz
- Losses reduce to stable low values after 500 operating hours
- Voltage test between terminals and container
- Sealing test for leak-proof construction
- Safety over-pressure disconnector with normally closed contact
- Suitable for induction heating and melting installations
- Number of taps or unequal outputs available on request
- Over-pressure switches can be provided as per customer requirement