DHINV Series High-voltage Inverter

●   Output nearly perfect harmonic-free sine wave;

●   7-inch touch screen, real-time data recording, and high fault tolerance;

●   Seven special functions, with the efficiency up to 96%, and higher reliability;

●   Modular design, higher power density, and high integration.


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Powerful Function

●   Integrated phase-shifting transformer in the cabinet, multi-pulse rectification;

●   Real-time monitoring of the whole machine, and fault classification protection;

●   Seven functions, such as in-built PID, flying start, and torque boost;

●   Multiple bypass schemes available.


Modular Design

●   Identical power units, which are easy to maintain;

●   Low-voltage rectification inverter, which is economical and reliable;

●   Multi-level PWM wave modulation technology without harmonics;

●   Real-time operating state monitoring of unit module;

●   Automatic bypassing of fault unit.


Compact Type

●   Superior performance;

●   Safety and reliability;

●   Small volume and weight;

●   High performance-cost ratio.


Input

●   Input voltage: 3/6/10kV three-phase 50Hz

●   Fluctuation allowed: Voltage: -35%+10%, frequency: ±10%

●   Control voltage: AC380V three-phase and four-wire (in-built UPS of inverter)


Output

●   Output voltage: 0~3/6/10kV

●   Output frequency: 0~50Hz, resolution 0.01Hz

●   Output current: 0~rated current


Environment

●   Service environment: Indoor, no explosive or corrosive gas

●   Environment humidity: 0~+40°C, <95% no condensation

●   ASL: 1000m (upon >1000m, reduce the volume)


Performance

●   Power Factor: 0.95 (Above 20% load)

●   Current harmonics: 3% (meet the requirements of IEEE519-2014 and GB/T12668.4-2006)

●   Overload capacity: 125% rated current 60s; 150% rated current 3s

●   Overall efficiency: 96%

●   Soft on/off: 5999s


Control

●   Control mode: V/F control

●   Man-machine interaction: 7-Inch touch screen

●   Operating mode: HMI, remote control box, DCS communication, etc.

●   System protection: Overvoltage, undervoltage, phase loss, overcurrent, overheating, communication, access control, etc.

●   Control signal: Optical fiber communication (controller and power unit)


Interface

●   I/O interface: 24-way DI, 16-way DO, 4-way AI and 2-way AO (extensible)

●   Communication interface: Modbus with Profibus or TCP/IP (optional)


System

●   Main functions: Automatic start upon power on, torque boost, flying start, torque limitation, voltage self-adaption, PID regulation, frequency modulation, speeding up and down of broken line, system self-diagnosis, HV bypass, inverter and motor protection, unit fault bypass, etc.

●   Protection grade: IP 30

●   Equipment noise: 80dB