Charging and rectifying units VTEU and UBP are provided for conversion of AC into regulated DC for charging of accumulator batteries and power supply of consumers with DC voltage both at buffer connection with accumulator battery and directly.
VTEU and UBP (hereinafter rectifier) provide smooth adjustment of output voltage from 5 % to 110 % of rated voltage; provide IU-characteristics of output voltage in accordance with DIN41773 during operation with accumulator batteries. Deviations of rectifier output current (voltage) in output current (voltage) stabilization mode don’t exceed ± 1 % of output current (voltage) setting value upon acceptable supply network voltage deviations.
Pulsation coefficient of rectifier output voltage is max. 0.08 without capacitive filter at the output and max. 0.04 with the installed capacitive filter upon operation for active load, rated output current and rated output voltage. Rectifier provides parallel operation with similar rectifiers with gross load.
Rectifier is dynamically and thermally resistant to internal and external short circuits.
UBP are designed and manufactured for:
AC single-phase supply voltage 220 V, 50 (60) Hz.
UBP is implemented on the basis of pulse converter-stabilizer with high frequency modulation.
VTEU are developed and manufactured for:
AC three-phase supply voltage 380 V, 50 (60) Hz.
VTEU is implemented on the basis of thyristor rectifier with bridge rectification circuit, with isolating transformer from the side of supply network.
Rectifier provides a number of protections disconnecting rectifier upon appearance of emergency situations both in load and in rectifier:
Rectifier microprocessor control system provides:
All control system tasks are performed by means of software and hardware.
Output current and voltage values in control system are set with control terminal buttons or corresponding switches on the cabinet door with monitoring on display.
Measuring units — voltmeter and ammeter — are located on cabinet door for rectifier output voltage and current measuring.
Please contact us in case you have any technical queries, requests regarding customized procurement or delivery time of equipment.