LV Power Capacitors

LV Power Capacitors

Introduction

ABB’s low voltage QCap-L series capacitors consist of a number of wound elements and a dielectric made of metallized polypropylene film. These dry windings are provided with over pressure disconnector for safety. The capacitor elements are treated in vacuum to ensure optimal electrical characteristics. Each winding is encapsulated in thermo-setting resin to obtain a perfectly sealed element. The QCap-L series LV Capacitors are available in cylindrical & box type models.

Salient Features:

Dry type design – The QCap-L series capacitor has a dry type dielectric which minimizes risk of leakage and environmental pollution.

Very low losses – Dielectric losses within the QCap-L series capacitors are very low and total losses including discharge resistors are less than 0.5 W/ kvar.

High reliability – The use of robust terminals minimize the risk of damage during installation and reduce maintenance requirements

Accredited with International standards – The QCap-L series low voltage capacitors are IS: 13340/41 and IEC 60831- 1&2 compliant.

Range:

Output: 1 Kvar to 33.1 Kvar of Single unit
Voltage: 415/440/525/690 volts 50/60Hz
Phases: Three phase

Specification:

Voltage range From 380 to 600 V
Net output power From 12.5 to 30 kvar. 0% / +10%.
Frequency 50 and 60 Hz.
Connection Three-phase.
Tolerance on capacitance 0% / +10%.
Losses < 0.2 Watt/kvar (dielectric only).
< 0.5 Watt/kvar (including discharge resistor).
Discharge resistor Discharge from Un to 50V in 1 minute.
Maximum permissible current 1.3 x In for continuous operation.
Tolerance on voltage 30% for maximum 1 minute.
Case material Recyclable aluminium.
Fixing 1 stud (M12).
Dimensions (DxH) 90x417mm.
Weight Approximately 3kg.
Terminals Cage screws.
Minimum distance above unit 20mm.
Earth Earth connection on the enclosure fixation.
Execution Indoor use only.
Mounting parts -25°C / +55°C (class D according to IEC 60831).
Mean life expectancy

Normal Duty: 100,000 hours (max. 5000 switching per year)

Heavy Duty: 125,000 hours (max. 6000 switching per year)

Altitude Up to 2000m.
Protection degree IP20.

 

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