MV Capacitors – Medium Voltage

Reactive power compensation for industrial and utility networks, with low losses and long service life.

Product overview

Medium-Voltage (MV) Power Capacitor is designed for reactive power compensation and power-factor improvement in industrial and utility electrical networks. It is manufactured using high-quality polypropylene (PP/BOPP) film as the dielectric and aluminium foil as the electrode. Multiple capacitor elements are assembled in series and parallel configurations to achieve the required voltage and kVAr ratings.

The capacitor is impregnated with capacitor-grade PXE oil or another specified insulating impregnant and housed in a robust MS steel or stainless-steel enclosure. Depending on the design, internal or external fuses and built-in discharge resistors are provided for protection and safe discharge after isolation. Porcelain bushings provide electrical insulation and reliable terminal connections.

The design focuses on low dielectric losses, stable electrical performance, reliable operation and long service life. It is suitable for fixed or automatic power-factor correction installations in industrial plants, commercial facilities and utility networks.

PP film + aluminium foil

Series-parallel elements for the required voltage and KVAr.

PXE oil impregnation

In a robust MS steel or stainless-steel enclosure.

Built-in protection

Fuses and discharge resistors, with porcelain bushings.

Technical specifications

Dielectric losses

< 0.2 W/KVAr

Phases

Single / three

Frequency

50 Hz

MV Capacitors

Parameter

Value

Applicable standard

IS 13925 / IEC 60871-1

Dielectric

Polypropylene (PP) film

Electrode

Aluminium foil

Number of phases

Single-phase or three-phase

Frequency

50 Hz

Dielectric losses

Less than 0.2 W/KVAr

Impregnation

PXE oil

Fuse arrangement

Internal or external

Discharge resistor

Built-in; below 75 V within 10 minutes after isolation

Enclosure

MS steel

Bushings

Porcelain, brown

Installation

Indoor panel or outdoor structure

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