Customization: | Available |
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Theory: | Electromagnetic Relay |
Usage: | Power Line Protection |
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PR-80L power line protection relay is suitable for the protection and monitoring of low-voltage lines with rated voltage below 690V and rated current up to 820A.
PR-80L can monitor on-site signals in real-time and provides system protection against harm to the line caused by faults such as overload, overcurrent, undervoltage, overvoltage, grounding, or leakage. It can realize a variety of operation control functions and also has measurement functions, self-diagnosis, maintenance management, field bus communication, and other functions.
PR-80L power line protection relay realizes measurement functions, protection functions, opening and closing control functions, and remote communication functions; it has 10 channels of relay monitoring, can be configured as needed, and supports MODBUS-RTU communication.
Electrical parameters
Power supply: | 85-265V AC/DC |
Power consumption: | <10 VA |
Insulation resistance: | > 100MΩ |
Alarm relay: | 5A @ 250VAC, or 5A @ 30VDC (NO contact) |
Measuring accuracy
Current: | ± 0.5% @ 10%~200% of Ie |
Voltage: | ± 0.5% @ 10%~150%Ue |
Frequency: | ± 0.1% @ 45~65Hz |
Power factor: | ± 1.0% @ 0~1.000 |
Power: | ± 1.0% @ 0~500kW |
Leakage current: | ± 1% @ 10%~100% of Ir |
Analog output: | ± 1% @ 4~20mA |
Thermal resistance: | ± 1% @ 0.1K~30K |
Working environment
Motor rated voltage: | AC380V / AC660V |
Motor rated current: | 0.5-820A |
Working temperature: | -10C ~ +55°C |
Storage temperature: | -25C ~ +70°C |
Relative humidity: | < 93% RH |
Altitude: | No more than 3000 m |
Atmospheric conditions: | The operating place must not have the explosive medium and contain Gases that corrode metals and damage insulating and conductive medium. |
Electrical test
Electrostatic discharge: | IEC 61000-4-2, Level III |
Electrical fast transient burst: | IEC 61000-4-4, Level III |
Surge shock: | IEC 61000-4-5 , Level III |
Withstanding voltage: | IEC 61010-1, AC2kV/1min Between power / input / output |
Product standards
GB / T 14048.1 (IEC 60947-1) | Low-voltage switchgear and
control equipment General Provisions |
GB / T 14048.4 (IEC 60947-4) | Low voltage electromechanical contactors and
motor starters requirements |
JB / T 10613-2006 | General specification for
digital motor combined protection equipment |
JB / T 10736-2007 | Low voltage motor protection |