Product Overview

The JL-CKSC series high-voltage iron-core series reactor is designed for use in power systems operating above 1 kV. Connected in series with high-voltage capacitors, it suppresses harmonic currents and limits system switching inrush currents, thereby improving grid voltage quality and ensuring the safe operation of the power system. Constructed using high-permeability cold-rolled silicon steel sheets and advanced epoxy resin materials, the reactor offers high reliability, excellent heat resistance and insulation properties, low noise, good linearity, superior performance, and a long service life. It is suitable for applications in electrified railways, metallurgy, casting, the chemical industry, the petroleum sector, and other fields.

Performance Characteristics

Insulation and Heat Dissipation:

①　Insulation classes range from Y (90°C) to C (above 180°C) to meet various heat resistance requirements;

②　Supports natural air cooling (AN) or forced air cooling (AF); requires an airflow of ≥2 m³/min per kW of loss.

Environmental Adaptability:

①　Operating temperature range: -25°C to +40°C; vibration resistance: 0.3g (horizontal) and 0.15g (vertical);

②　Altitude ≤1000m (for higher altitudes, the temperature rise limit decreases by 2.5% per 500m, and the power-frequency withstand voltage requirement increases by 6.25% per 500m).

Safety Design:

①　Single-point grounding for the iron core; encapsulated coil insulation; anti-corrosion protective coating;

②　Installation must be performed by qualified personnel; safety barriers are required during operation to prevent accidental contact.

Technical Parameters

①　Maximum operating voltage: 11.5 kV; rated power-frequency withstand voltage: 42 kV (dry) / 30 kV or 35 kV (wet); lightning impulse withstand voltage: 75 kV;

②　Current parameters: Rated AC current (In) accounts for high-order harmonics and insulation heating; maximum current Inmax = 1.25In (typically In = 0.8Inmax).

Operating Environment

①　Temperature: -25°C to +40°C (derating required for temperatures above +40°C; e.g., a 5K reduction for the +40°C to +45°C range);

②　Altitude: ≤1000 m; free from conductive, explosive, or corrosive media; free from heavy dust and vapors.

③　Relative air humidity ≤90% (at 25°C); seismic withstand capacity: 0.3g horizontal, 0.15g vertical;

④　Cooling method: AN or AF; rated fundamental frequency: 50 Hz/60 Hz.