3.3/6.6/11KV HT DOL STARTER

3.3/6.6/11KV HT DOL STARTER

An HT DOL Starter Panel is used for starting and controlling high-tension motors (typically above 1 kV). It directly connects the motor to the power supply, allowing full-voltage starting.

Category:

Specifications

Rated Voltage 3.3/6.6/11KV
Rated Current As per motor FLC (Full Load Current), typically up to 630A
Insulation Level 28kV (for 11kV system)
Short Circuit withstand 25kA / 31.5kA for 3 seconds
Frequency 50 HZ ±5%
Protection Relays Overload, Short Circuit, Overvoltage, Undervoltage, Earth fault, Overcurrent and unbalance protection, Motor stall/lock rotor
Panel Construction Indoor/ Outdoor
IP IP 42-65

Components Included

  • Vacuum Circuit Breaker (VCB) or SF6 Breaker
  • Current Transformers (CTs) and Potential Transformers (PTs)
  • Protection Relays (Overload, Earth Fault, Short Circuit)
  • Remote/Local Control Switches
  • Auxiliary Contactors, Indicating Lamps, and Meters

Advantages

  • Simple and cost-effective.
  • Quick start-up with high torque.

Applications

Used in pump stations, compressors, blowers, and large industrial motors where direct starting is acceptable.

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