150kVA ~ 350kVA Range
LQCZ 200KVA Cylinder Type Voltage Regulator
Single Phase Motor-Driven HV Regulator for Precision Testing Applications
Product Overview
Designed for high-voltage testing laboratories and industrial applications, the cylinder-type 200KVA regulator provides continuously adjustable output from 0-6.3KV with motor-driven voltage control. Features ONAN cooling and robust short-circuit protection for demanding test environments.
Technical Specifications
| Electrical Parameters | |
|---|---|
| Rated Capacity | 200 KVA |
| Input Voltage | 0.4 KV |
| Output Voltage Range | 0 ~ 6.3 KV |
| Input Current | 500 A |
| Output Current Range | 0 ~ 31.7 A |
| Frequency | 50 Hz |
| Impedance Voltage | ≤7.5% (50%-100% range) |
| Waveform Distortion | ≤3% |
| Starting Voltage | ≤1% |
| Performance & Safety | |
|---|---|
| Insulation Levels | Primary-Secondary/Ground: 5kV/1min Secondary-Primary/Ground: 20kV/1min |
| Overcurrent Capability | 120% rated current: 30 min 140% rated current: 15 min 160% rated current: 5 min |
| Short-Circuit Withstand | 2× output current for 8 cycles without damage |
| Operating Cycle | 15 min ON / 15 min OFF (8 cycles/day max) |
| Noise Level | ≤60 dB(A) |
Key Features
Motor-Driven Control: Single-phase DC motor for precise voltage adjustment
Safety Limits: Upper/lower voltage limit protection
Cooling System: Oil Natural Air Natural (ONAN) cooling
Monitoring: Oil level indicator and drain valve
Robust Construction: Cylinder-type design for HV stability
Discharge Protection: Automatic resistor discharge circuit
Industry Applications
Dielectric strength testing laboratories
Partial discharge measurement systems
High-voltage equipment commissioning
Transformer and cable testing facilities
Research & development centers
Design Standards Compliance
Manufactured according to IEC 60076 power transformer requirements with dielectric tests compliant with IEC 60270 partial discharge measurement standards.
Operation Notes
Safety Protocol: When discharging test objects, ensure temporary capacity doesn't exceed rated parameters. Short-circuit currents exceeding 2× output must be limited to ≤8 wave cycles.
Thermal Management: Maintain ambient temperature below 40°C and ensure adequate ventilation for optimal ONAN cooling performance.
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