Motor Starting Reactors reduce the applied voltage during the starting of large three-phase motors, limiting inrush current and minimizing voltage dips on the power system.
Large motors typically draw 6–8 times their rated current during direct-on-line starting. By reducing the starting voltage to approximately 70%, the reactor limits the starting current while the remaining voltage is dropped across the reactor. After 15–20 seconds, the reactor is automatically bypassed by the system contactors, allowing the motor to operate at full voltage.
- High mechanical strength to withstand short-circuit forces
- Low temperature rise for extended service life
- Maintenance-free design
- Voltage
≤1000V
- Motor Power
≤1MVAr*
Motors
- Frequency
50 Hz / 60 Hz
- Winding Material
Aluminium or copper winding
- Temperature
−30°C … 55°C
- Insulation Class
Class F or custom
- Cooling
AN
Air-natural cooling
- Options
Taps, enclosure, DIN or NEMA terminal configuration
- Standards
- IEC 60076-6IEC 61558
*Consult Hilkar for higher ratings
- 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