TECHNICAL USER´S MANUAL
12
Thyristor modules
3.4 Ready for Start-Up
Module is ready to start up as soon as power and capacitor connections on L1-C1 and L3-C3
terminals are completed. When the module is turned on (including the auxiliary supply voltage
for 50kVAr and 80kVAr), it will be waiting for a trigger signal. As soon as a trigger signal is
detected, the green status LED will light up indicating that the thyristors are triggered and the
capacitors are switched on. The module is equipped with fault detection and a respective LED.
Each is described in the following section.
3.5 Alarms and Indicators
Thyristor modules have four LEDs on the front panel dedicated for alarms, status feedback
and faults. The function of each LED is described as follows:
POWER LED (
red
):
Informs the user that the module is powered up.
FAULT LED (
red
):
Informs the user of internal faults. If the module detects a misconnection on
L1-C1 or L3-C3 terminals, a fault on the discharge mechanism or any other error which must be
cleared before the system is enabled, this LED blinks until the fault is cleared. In case of
overheating, this LED will light up and stay lit until the modules are cooled below 70ºC.
REACTOR FAULT DETECTION LED (
red
):
This LED will light if reactor overheats.
STATUS LED (
green
):
Informs the user that the modules are activated and capacitors are switched
on.
4 – Technical Drawings
Technical drawings for 12kVAr, 25kVAr, 50kVAr and 80kVAr modules are presented in this
section. The frames and dimensions of 12kVAr and 25kVAr are identical. Similarly, frames and
dimensions of 50kVAr and 80kVAr are identical as well.
