Product Overview & Application Scenarios
The HM-TYDGZ-500kVA is an oil-immersed induction voltage regulator featuring contactless regulation, a long service life, and high overload capacity, making it suitable for a wide range of load types. This voltage regulator enables stepless, smooth, and continuous output voltage adjustment under load.
Technical Parameters
- Rated Capacity: 500 kVA
- Input Voltage: 400 V
- Output Voltage: 0–800 V
- Rated Frequency: 60 Hz
- Efficiency: 96%
- Voltage Control Range: 5–10 V
- Operating Duration: 100% rated output for continuous operation for 8 hours; 80% load for long-term continuous operation
- Insulation Withstand Voltage: 2000V/60S, leakage <10mA
- Insulation Resistance: >20MΩ
- Noise: <85 dB
- Operating Altitude: ≤3000 m
- Ambient Temperature: -25°C to +40°C
- Relative Humidity: ≤85% (unless otherwise specified as <95%)
- Temperature Rise Standards
- Oil Surface Temperature Rise: 55°C; maximum oil surface temperature ≤95°C at 40°C ambient temperature
- Winding Temperature Rise: 65°C
- Silicon Steel Sheet Temperature Rise: 80°C
FAQs
Q: How long can the unit operate under overload conditions?
A: 25% overload: up to 120 minutes; 50% overload: 60 minutes; 75% overload: 20 minutes; 100% overload: 10 minutes.
Q: What should be done before starting up a newly installed or long-unused unit?
A: Measure the winding-to-ground insulation resistance with a megohmmeter; safe operation is permitted only if the resistance is not less than 1 MΩ. If the standard is not met, the unit must be powered on for drying or placed in a drying oven.
Q: What should be done if a shear pin breaks?
A: First, identify the cause and troubleshoot the issue, then replace the shear pin with one of the same size and material.
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