Medium Voltage Variable Frequency Drives

Medium Voltage Variable Frequency Drives

Product Description Main Circuit Type: Voltage Link of Transformation: AC-DC-AC Variable-Frequency Drive Function: Constant Torque Universal Type Transport Package: Wooden Case Output Type: Triple Switch Mode: SPWM Control Voltage of Power Supply: High Voltage Variable-Frequency Drive Nature of...

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Product Details

Product Description

  • Main Circuit Type: Voltage

  • Link of Transformation: AC-DC-AC Variable-Frequency Drive

  • Function: Constant Torque Universal Type

  • Transport Package: Wooden Case

  • Output Type: Triple

  • Switch Mode: SPWM Control

  • Voltage of Power Supply: High Voltage Variable-Frequency Drive

  • Nature of DC Power: Voltage Variable-Frequency Drive

  • Brand: Aubo

  • Origin: China

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Technical Parameters

Medium voltage inputVoltage range3KV, 3.3KV, 4.16KV, 6KV, 6.6KV, 10KV, 11KV (-20%~+15%)
Frequency range50/60 Hz±10%
Medium voltage outputOutput voltage0~Rated voltage
Output frequency and accuracy0~50/60 Hz, 0.01 Hz
Output waveformMultilevel PWM sin wave, total harmonic distortion (THD) < 4%
PerformanceEfficiencyInversion efficiency at an rated load > 98.5%, overall efficiency (including the transformer) > 97%
Power factorPower factor (within the range of speed regulation) > 0.95, power factor (at a rated load) > 0.97
Overload capacity110%: long-term stable operation, 120%: 1 minute, 150%: 2 seconds, and 160%: prompt protection
Allowable outage duration200 ms (and longer under light load)
Mean time between failures> 100,000 hours
ControlControl modeflux optimization and control with space vector PWM
Acceleration/deceleration time1 to 3,600 seconds
Switching quantity input/output11-way/10-way
Analog input4-way (optional: 0 to 5 V, 4 to 20 mA)
Analog output3-way (optional: 0 to 10 V, 4 to 20 mA )
CommunicationsRS485 interface, Modbus-based (optional Profibus-DP and Ethernet interfaces)
Control power supplySingle-phase 220 V AC, 5kVA
Excitation control ( dedicated for the synchronous motor)Control modeAutomatic excitation control, manual excitation control, multi-stage speed excitation control, and external excitation control for the MVVFD
EnvironmentOperating environmentOperating in indoor environment without explosive or corrosive gases, conductive dust, or oil fog
Operating ambient temperature0oC~+45oC
Storage and transportation temperature-40oC ~+70oC
Ambient humidity< 90% (No condensation)
Operating altitudeDerating required for an altitude greater than 1000 meters
OthersProtection functionOvercurrent, overload, short circuit, three phase current unbalance, immediate electric outage, input/output phase loss, overvoltage, undervoltage, body overheat, transformer overheat, shutdown due to external fault, and power unit auto bypass
Cooling modeForced-air cooling
User interfaceAn 10-inch Human Machine Interface
Protection grade: IP31IP41

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