Introduction
The industry-specific power supplies are dedicated for wide scale of applications, which require to be supplied from a tailored-made specific equipment. The power sources are developed specifically for use in the electrical testing rooms, for power supply of specific loads or feeding of electrical devices from atypical power grids.
The power supply were designed to provide a variable AC voltage with sinus waveform or DC voltage. The combined variants can provide both an output voltage of AC and DC type. The voltage range is typically up to 1000 V, it is possible to supply a customized solution for high-voltage applications up to 30 kV.
The main functionality is based on the principle of frequency converter with specific control. The “embedded” software enables an independent control of voltage and frequency, current control, voltage symmetrisation, modulation control and many other specific control modes.
The control can be either manually by means of integrated or portable control panel, or by remote control system (PLC, PC) through communication interface based on MODBUS TCP/RTU protocol.
The power supply are being used in the electrical motor test rooms for various tests as no-load run, locked-rotor test, insulation test, load test, thermal test etc.
Technical overview
Power range: up to 4 MVA / MW.
Output voltage:
- Single-phase / Three-phase / DC
- Voltage range: Low Voltage to 1000 V or High Voltage up to 30 kV
Output frequency: up to 500 Hz.
Voltage stability: up to 0,1 %.
Voltage total harmonic distortion (THD): < 2 %.
Capable of energy recovery to power grid.
Possibility of reactive power compensation (inductive or capacitive).
Control modes:
- Voltage source with current limit
- Current source
- Adjustable voltage / frequency ramps
Protections:
- Short-circuit, overcurrent, thermal, overvoltage
- Adjustable electronic current protection for supplied load
Customized design and solution tailored to customer´s application and requirements.
Life-cycle software updates and modification adapted to test procedures.
Service for warranty period and after-warranty period.
