The shunt reactors of TDOK type are used to compensate currents with capacitance characteristics – e.g. in long cable lines used, among others in wind farms.

The shunt reactors of TDOK type are connected to a three-phase network. The reactor may be equipped with a tap changer to adapt the operating parameters of the device to the compensating current value. It can also have additional winding for auxiliary needs of the station, switching station, etc.

Manufacturing range:

Power range:  from 50 kVAr up to 4500 kVAr
Voltage range: up to 36 kV
Isulation class: A according to IEC 60085
Type of cooling: ONAN, KNAN

Standard operating conditions:

Max. operating altitude -1000 m above sea level
Operating temperature range – 25 to + 40 °C or other on request
Rated frequency 50 Hz (60 Hz on request)

Design characteristic:

Hermetically sealed (without conservator) or with conservator
Core– grain-oriented electrical steel sheets
assembled into core using the “Step-Lap” method
Winding – electrolytic aluminium or copper wire, enamelled round or profiled in paper isolation,
Tank – corrugated or with radiators,
made of steel, painted or hot dip galvanized
Standard colour is RAL7030 or other colours on request

Standard equipment:

5-positions off-load tap changer
HV porcelain bushing according to DIN 42531 or EN 50180:2010
LV porcelein bushing according to DIN 42530 or EN 50386:2010
Oil level indicator
Rating plate
Earthing terminals
Lifting lugs
Pulling lugs
Bi-directional wheels
Thermometer pocket
Filling plug
Draining device according to EN 50216-4 or DIN 42551
Painting RAL 7030

Optional equipment:

7-positions off-load tap changer
Protection relays DMCR® or DGPT2®
Plug-in bushings
Busbars bushings
Surge arresters
Antivibration pads
Cable boxes
Accessories for conservator: dehydrating breather,buchholz relay, drain plug, oil level indicator

Making, testing & loss levels, tolerance ranges are in compliance with IEC 60076-1, IEC 60076-11, IEC 60076-6