PR

Control of three-phase thyristor bridges and phase-controlled rectifiers

Überblick

A device for controlling three-phase thyristor bridges and phase-controlled rectifiers.

Using a 'pulse refresher', it is possible to control parallel thyristor bridges. The firing pulse repeater selects and forwards firing pulses and has control and monitoring functionality. The PR operates based on programmable logic technology (CPLD); this guarantees the highest degree of operational safety.


Characteristics

Supply voltage: 24 V DC

Input voltage: 15 V … 30 V

Pulse duration of 20 µs with firing pulse repetition after 130 µs for a continuously active input signal

Firing of thyristors up to 2000 A

Redundant switch-over in case one pulse generator fails

 

 


Steuerung

Control

Switching between input channels 1 or 2

Blocking of both channels

Pulse regeneration

Continuous pulsing for continuously active input signals

 


Überwachung

Überwachung

Monitoring

Pulse duration and interval

Output blocking for erroneous input pulses

Error messages

 

 

F&S