Low Voltage Power Capacitor

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Low-voltage dry-type shunt capacitors are energy‑saving devices used for power factor correction in low‑voltage power systems operating at 50 Hz or 60 Hz. They reduce reactive power losses and improve voltage quality. The KD‑H dry‑type eco‑friendly capacitor is manufactured using advanced German technology in a Class 100 cleanroom environment. Under vacuum conditions of 10–3 bar, the components are heated while protective gas is injected. This process effectively removes air and moisture from within the capacitor, preventing electrode oxidation and localized discharge. Following this sophisticated manufacturing sequence and rigorous factory acceptance testing and quality assessments, the capacitors achieve exceptional stability and an extended service life. Depending on the application, they are available in single‑phase and three‑phase configurations.

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Low-voltage power capacitor

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400-0571-505

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Detailed introduction

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Product Overview

Low-voltage dry-type shunt capacitors are energy‑saving devices used for power factor correction in low‑voltage power systems operating at 50 Hz or 60 Hz. They help reduce reactive power losses and improve voltage quality. The KD‑H dry‑type eco‑friendly capacitor is manufactured using advanced German technology in a Class 100 cleanroom environment. Under vacuum conditions of 10–3 bar, the components are heated while being purged with a protective gas. This process effectively removes air and moisture from within the capacitor, preventing electrode oxidation and localized partial discharges. Following this sophisticated manufacturing procedure and rigorous factory acceptance testing and quality assessments, the capacitors achieve exceptional stability and an extended service life. Depending on the application, they are available in single‑phase and three‑phase configurations.

Product model

Main Technical Parameters

Rated voltage	230V–850V (customizable for special voltages)
Rated frequency	50 Hz, 60 Hz
Electrolyte	Imported polypropylene film
Polypropylene film thickness	10 μm～customizable to 12 μm
Tolerance deviation	±3%
Insulating medium	Epoxy resin or nitrogen
Overcurrent capacity	2In
Discharge capacity	Discharge the 50S to below 50 V.
Operating ambient temperature	-40 ℃ ~+50 ℃
Outline structure	Cylindrical, all-aluminum metal monolithic molding
Altitude	2,000 meters; custom options available for distances over 2,000 meters.
Service life	Greater than 100,000
Maximum capacity of single set	50kvar
Executive standards	IEC 60831, VDE 0560

● Altitude shall not exceed 2,000 meters (corrections shall be applied for altitudes above 2,000 meters in accordance with the relevant standards).
● Ambient temperature: -40~+50°C
● The installation location shall be free from severe mechanical vibrations, harmful gases and vapors, and conductive or explosive dust.
● Continuous operating voltage: 1.0Un; the maximum long-term overvoltage shall not exceed 1.1Un.
● Steady-state overcurrent (including harmonic currents) shall not exceed 1.35In.

Product dimensions

Model number	Rated capacity/kvar	W×H/mm	Mounting screws
KD-H/0.48-5-3	5	China 76x245	M12
KD-H/0.48-10-3	10	φ76x245	M12
KD-H/0.48-15-3	15	φ96×245
KD-H/0.48-20-3	20	Medium 106×245
KD-H/0.48-25-3	25	Medium 106×290	M16
KD-H/0.48-30-3	30	φ116x290
KD-H/0.48-40-3	40	Medium 126×290
KD-H/0.525-5-3	5	China 76×245	M12
KD-H/0.525-10-3	10	China 76x245	M12
KD-H/0.525-15-3	15	φ96×245	M16
KD-H/0.525-20-3	20	Medium 106×245
KD-H/0.525-25-3 KD-H/0.525-30-3	25 30	Medium 106×290 φ116×290
KD-H/0.525-40-3	40	φ126×290
KD-H/0.28-5-4 KD-H/0.28-10-4	5 10	China 86×245 China 86×245	M16
KD-H/0.28-20-4	20	φ106×245
KD-H/0.28-15-4	15	China 96×245
KD-H/0.28-20-4 KD-H/0.28-25-4	20 25	φ106x290 medium 116×290

Product dimensions

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