KATKA 12 Triac switching module, three phase,
individual phase switching, up to 12 kVAr
The KATKA 12 series Triac compensation
blocks are designed for fast compensation (up to
20 control interventions per 1 s) in conjunction
with the fast power factor controllers NOVAR
2700. It is an ultra-compact unit with an output
of up to 12 kvar with a step of 0.25 kVAr. They
are designed for switching in 400 / 230V
networks. They make it possible to compensate
for each phase separately.
The compensation capacitor closes at zero
voltage (typically 5V) on the switching element
and the switch opens when the current passes
through zero. The advantages of this contactless
switching are long switch life (high number of
switchings on and off), limited current and
voltage interference to the network (switching
on and off at zero) and speed of switching on
and off.
Each KATKA 12 block contains 12 capacitor
stages, the weights of the stages are 1: 2: 4:
8, in each phase separately. Each stage has its
own protection, protection against overvoltage
by RC cell and varistor, protection against
current peaks by choke, complete measurement of
voltage and current of the stage and its
diagnostics. The block also contains a common
varistor overvoltage protection, heat sink
temperature measurement and overheating
protection. The block is cooled by natural air
flow, without a fan.
