Technical Parameters:
◆ Design Principles
The design principles are reliability, safety, economy, practicality, operability, and maintainability, while also considering advanced technology.
◆ Applicable Scope
Meets the requirements for rated voltages of 380V, 660V, 1140V, 3300V, 6000V, and 10000V; rated power from 1 to 15000kW, for factory and maintenance testing of three-phase asynchronous motors.
◆ Operating Conditions
◇ The rated working temperature in the central control room is +20°C, with an allowable variation range of 0°C to 45°C, and relative air humidity not exceeding 85%.
◇ The central control room should be far from electromagnetic field interference and mechanical vibration, and avoid corrosion from corrosive gases.
◇ The ambient temperature in the screen cabinet area and equipment area is -5°C to +45°C, with relative air humidity not exceeding 80% at +40°C and not exceeding 85% at +25°C.
◇ The air must not contain excessive dust, acids, salts, corrosive, or explosive gases.
◇ The installation altitude should not exceed 1000m.
◆ Test Items
Users can select the following test items according to their own requirements:
◇ Ambient temperature measurement
◇ Insulation resistance measurement
◇ DC resistance measurement (calculate three-phase resistance unbalance)
◇ Power frequency withstand voltage test
◇ Turn-to-turn withstand voltage test
◇ No-load test (calculate three-phase current unbalance)
◇ Locked rotor test
◇ Load test
◇ Efficiency test
◇ Temperature rise test.
The system completes measurement and calculation of voltage, current, power factor, active power, reactive power, efficiency, frequency, output torque, output speed, output power, temperature rise, etc.
◆ Main Technical Parameters:
◇ No-load, locked rotor, load test, temperature rise:
Current measurement accuracy: 0.2%FS±3d
Voltage measurement accuracy: 0.2%FS±3d
Power measurement accuracy: 0.5%FS±3d
Current unbalance calculation: 0.1%FS±3d
Temperature measurement accuracy: 0.5%±2d
Speed measurement accuracy: 0.2%FS±3d
Torque measurement accuracy: 0.2%FS±3d
◇ Power frequency withstand voltage test:
High voltage: 0～30000V adjustable
High current: 0～3000mA
Withstand time: 0～9999S
◇ Turn-to-turn impulse withstand voltage test:
Voltage peak: < 30000V, adjustable
Wavefront time: < 0.5us, adjustable
◇ Insulation resistance measurement
Measurement range: < 1000MΩ
Measurement accuracy: 5%FS±5d
◇ DC resistance measurement:
Measurement current: < 10A
Measurement resistance: 0～200Ω
Minimum resolution: 1uΩ
Resistance unbalance calculation: 0.1%FS±3d
Measurement accuracy: 0.2%FS±3d
