Product Overview

The LQHCR 690KVA-3KV is an advanced oil-immersed compensation reactor featuring unique stepless reactance regulation and 6-position manual capacity switching. Designed for demanding industrial environments, it provides precise reactive power control and harmonic suppression in 3kV power systems.

Technical Specifications

Advanced Design Features

Multi-Strand Copper Winding

Parallel-wound copper conductors reduce eddy-current losses with current density optimized at 2.5A/mm².

Full Insulation System

All terminals withstand 20kV/min ground insulation tests with no abnormal discharge.

Stepless Regulation Mechanism

Iron core adjustment via single-phase motor enables continuous reactance tuning without interruption.

Oil System Components

• Moisture absorber maintains dielectric integrity

• Drain valve for maintenance and oil sampling

• Temperature-stabilized mineral oil (IEC 60296)

Capacity Switching System

6-Position Manual Selector

Bushing-lead configuration enables step capacity adjustments:

Manual changeover enables rapid adaptation to load variations without shutdown.

Industrial Applications

Steel Manufacturing

Dynamic compensation for arc furnaces and rolling mill drives

Chemical Plants

Harmonic filtering for variable-speed compressor drives

Port Infrastructure

Power factor correction for crane and cargo handling systems

Water Treatment

Stabilizing high-power pump motor operations

Installation & Safety

1. Maintain 1-meter clearance from combustible materials

2. Install on vibration-damping mounts (ISO 10816 compliance)

3. Verify oil level 25mm below filler neck before energization

4. Ground tank to <5Ω resistance (IEEE 80 standard)

CT Integration

The built-in 250:5 current transformer enables real-time monitoring without external sensors.

Maintenance Protocol

Compliance Standards

• IEC 60076: Power transformers

• IEEE C57.12.90: Test code for reactors

• EN 50588: Industrial reactor standards

• GB 1094.1: Insulation coordination