Technology of Electrical Automatic

PR 240 Motor Protection Relay

PR 240 Motor Protection Relay

PR 240 is an excellent choice for telemetry applications for Motor monitoring, metering, and control. Its small size, low cost and remote HMI options make the relay a perfect option for power distribution systems for such uses as end-of-line monitoring and power metering.

It offers low-voltage motor protection in virtually all applications, including pumping, air-based, chiller, and bulk-material applications. It can be configured as full range of medium-voltage, three-phase induction and synchronous motors protect relay.

Category:

PR 240 is an excellent choice for telemetry applications for Motor monitoring, metering, and control. Its small size, low cost and remote HMI options make the relay a perfect option for power distribution systems for such uses as end-of-line monitoring and power metering.

It offers low-voltage motor protection in virtually all applications, including pumping, air-based, chiller, and bulk-material applications. It can be configured as full range of medium-voltage, three-phase induction and synchronous motors protect relay.

Category:

Features

  • Panel mounting HMI unit and Din-rail mounting control unit.
  • Suit for Motor under 0.66KV and any current range.
  • HMI unit provide 3-phase current voltage monitors, Power Measurement.
  • Control unit build in 200A CT, out of range use ../5A CT connect.
  • Abundant protection modes can be freely selected to alarm or trip.
  • Can selected a variety of startup modes for different wiring application.
  • RS-485 network communications.
  • 4 digital outputs, and 7 digital inputs.
  • Optional 1 programmable analog output.

Specifications

Working environment:

Motor rated voltage: AC380V / AC660V
Motor rated current: 0.5-820A
Working temperature: -10C ~ +55C
Storage temperature: -25C ~ +70C
Relative humidity: < 93% RH
Elevation: not more than 3000 m
Atmospheric conditions: installation site does not allow the explosive medium, containing gas to corrode metal and damage the insulation and conductive medium.

Measuring accuracy:

Current: ± 0.5% @ 10% to 200% of Ie
Voltage: ± 0.5% @ 10%~150%Ue
Frequency: ± 0.1% @ 45 ~ 65Hz
Power factor: ± 1.0% @ 0 ~ 1.000
Active Power ± 1.0% @ 0 ~ 500kW
Leakage current: ± 1% @10% to 100% of Ir
Analog Output: ± 1% @4 ~ 20mA

Electrical parameters:

Auxiliary Power:  AC90-240Vac/dc
Power consumption: <10 VA
Insulation resistance: > 100MΩ
Relay: Alarm relay @ 5A / 250VAC, 5A / 30VDC (NO node)

Electrical test:

IEC 61000-4-2 level III
IEC 61000-4-4 level III
IEC 61000-4-5 level III
IEC 61010-1 AC2kV/1min Between power / input / output

Selectable Models

Accesseries selection table

Downloads

Brochure of PR motor protection relay

PR240 motor protector manual V3.7