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Iskra d.d.
Dry Capacitors

Dry Capacitors

Product catalog summary

Overview: This document provides technical specifications and data for dry capacitors used in power factor correction, aimed at improving power quality and network efficiency. These capacitors are suitable for use in electricity distribution, energy production, heavy industry, manufacturing, and utilities.

Features:

Rated voltage up to 600 V
Rated frequency: 50 or 60 Hz
Protection degree: IP 20
Self-healing with overpressure disconnector
Operating temperature range: -25 °C to +55 °C
Compliant with IEC 60831 - 1/2 standards

Technical Specifications:

Capacitance tolerance: -5% to +15%
Losses: Dielectric < 0.2 W/kvar, Total < 0.5 W/kvar
Discharge time: Less than 3 minutes to 75 V
Dielectric material: Metallized polypropylene film, dry type (PCB-free)
Permitted storage temperature: -40 °C to +70 °C
Permitted overload: 1.1 × Un (8 hours per day), 1.3 × In (rated current)
In-rush current: Maximum 130 × In
Test conditions: Between layers 2.15 × Un, AC, 2 seconds; Layers-housing 3.6 kV, AC, 2 seconds
Max weight per kvar: 0.1 kg in cylindrical housing

Applications: These capacitors are designed for three-phase systems and are available in various configurations to suit different voltage levels (525 V, 460 V, 440 V, 420 V, 400 V, 380 V). They are housed in aluminum cylindrical casings and are available in different capacitance and power ratings.

Dimensional and Packing Details: The document includes detailed tables listing capacitance (Cn), reactive power (Qn), current (In), dimensions (H, FI), weight, and packing units for each capacitor model. Capacitors are available in packing units ranging from 1 to 16 pieces, depending on the model.

Safety and Standards: The capacitors feature self-healing properties and an overpressure disconnector for safety. They comply with IEC Publ. 60831 - 1/2 standards, ensuring reliability and safety in operation.

Catalog excerpts

Power factor correction DRY capacitors Improves power quality and network efficiency FEATURES • Rated voltage Un: up to 600 V • Rated frequency: 50 or 60 Hz • Protection degree: IP 20 • Self-healing, overpressure disconnector • Ambient temperature: -25 °C to +55 °C • IEC 60831 - 1/2 FOR WHOM • For power factor correction in electricity distribution and energy production companies, heavy industry, manufacturing, utilities, etc. Think energy

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Three-phase capacitors in aluminium cylindrical housing dry type KNK1053 (fn = 50 Hz) In (A)

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Three-phase capacitors in aluminium cylindrical housing dry type KNK1053 (fn = 60Hz) In (A)

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Dimensional Drawing & Technical Data Dimensional Drawing: TECHNICAL DATA: Rated voltage Un: Rated frequency: Capacitance tolerance: Losses: dielectric - total Protection degree: - 5 % to + 15 % < 0,2 W/kvar < 0,5 W/kvar IP 20 < 3 min. to 75 V or less by discharge resistors Discharge time : Standards: self-healing, overpressure disconnector metallized polypropylene film; dry type (PCB-free) Permitted ambient temperature: Permitted storage temperature: Permitted overload: In-rush current: Test conditions: between layers 2,15 × Un, AC, 2 s; layers-housing 3,6 kV, AC, 2 s Published by Iskra MIS,...

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Dry Capacitors

Dry Capacitors

Catalog excerpts

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