Our Solutions

AVR

Microprocessor Controlled

Voltage Regulating Relay KT30 Series
 

• Automatic controlling of transformers with a motor-driven on load tap changer

• Display of voltage, tap position, current and power factor (cosΦ) on both seven segment and LCD

• Line drop and Z compensation

• Voltage setting remotely controllable (3 load shedding inputs and 4-20 mA input signal)

• Time delay 1 definite inverse and time delay 2 (can be switched off)

• Tap Blocking capability for each of U>, U<, I>

• Password protection for changing of setting

• Internal computation to minimize circulation current of parallel transformers (parallel card not required , only in KT30P series)

• Basic controls such as auto/manual, individual/master/parallel, manual tap raising, manual taplowering etc. (only in KT30T series)

• Power supply: self power or 60-160 VDC/AC

• Output relays: raise, lower, overvoltage, undervoltage and overcurrent

• Output signals: regulator blocking tap block, more circulating current, AVR faulty, out of steps, on other tap, tap changer failure, simultaneity time failure and serial communication error (in parallel mode)

• Data logging (V, I, tap, power factor) for several months and online printing (only in KT30L series)

• Compliance with IEC60255-5 : 2000-12 , IEC 255-21 : 1986-16 , EN55011 : 1998 +A1 : 1999