Hilkar Motor Starting Reactors are designed to reduce the starting voltage and limit the inrush current of large three-phase induction and synchronous motors. During direct starting, large motors can draw 6 to 8 times their rated current, causing voltage dips and mechanical stress on both the motor and the electrical network. Motor Starting Reactors reduce the applied motor voltage during startup, limiting the starting current while providing sufficient starting torque.
A typical starting configuration applies approximately 70% of the rated voltage to the motor, with the remaining voltage dropped across the reactor. Once the motor reaches the required speed, the reactor is automatically bypassed by the control system, allowing the motor to operate at full line voltage.
- High mechanical strength to withstand short-circuit forces
- Optimized thermal design with low temperature rise for extended service life
- UV-resistant surface protection suitable for Pollution Class IV environments
- Maintenance-free design for reliable long-term operation
- IVC
- Incoming vacuum contactor
- CT
- Current transformer
- BVC
- Bypass vacuum contactor
- %
- Tap: motor voltage at start, in % of the line voltage; the connection can be moved to another tap
- Rated Voltage
≤15kV*
- Type
Air core, dry type
- Frequency
50 Hz / 60 Hz
- Installation
Side-by-side, delta, or vertical arrangement
Enclosure available on request
- Winding Material
Aluminium or copper
- Surface Finish
RAL 7035
Or other colors upon request
- Ambient Temperature
−40 °C … 55 °C
- Insulation Class
Class F or custom
- Cooling Method
AN
Air Natural
- Applicable Standards
IEEE, IEC, and other applicable international standards
- Available Options
Taps, enclosure
*Consult Hilkar for higher ratings
