GW-LR60 Protection and Control Device
Protection FunctionsCurrent Protection: 50P-1/2/3, 50P, 51P, 50N, 51N, 46, etc. Voltage Protection: 59PR, 27PR, 81O, etc. Power Protection: 32P, 25, 79, SOTF AR Protection Monitoring: CT Monitor, LOP, 74TC, etc. Load Protection: Too long starting time protection, Overheat protection, LR, etc. Loggin
Industry Certifications & Standards
ISO 9001
Quality Management
Certified
EU Compliance
MID
Measuring Instruments
RoHS
Hazard-Free Materials
IEC 62053
Metering Accuracy
Listed
Safety Standard
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About the Power Meter
The digital power meter provides accurate measurement, reliable performance, and flexible functions for power monitoring and energy management.
| Parameter | Value |
|---|---|
| Power Supply | 88~264V 50/60Hz AC/DC universal; DC24V; DC48V |
| CT Nom/IX | 5A, 1A |
| IN, CT Nom | 1A |
| AC Nom | 100V (line voltage) |
| System Freq | 50Hz/60Hz |
| Power consumption | AC current loop 5A configuration, no more than 1VA/phase; 1A configuration, no more than 0.5VA/phase; AC voltage circuit no more than 0.5VA/phase; Working power circuit no more than 5W |
| Voltage/Current | ±0.5% |
| Active/Reactive Power | ±0.5% |
| Frequency | ±0.01Hz |
| kWh Import/Export | Grade 1 |
| kvarh Import/Export | Level 2 |
| Connection capacity | 5A continuous; 30A, 0.2s |
| Action time | < 10 ms |
| Return time | < 5 ms |
| Breaking capacity | DC with resistance of 50W; Perceptual 50W (L/R = 0.04s); AC 1250VA, max. 5A |
| Switching value input | 220VDC/AC, 110VDC/AC, 24VDC and 48VDC optional |
| Operating Temperature | -25 ~ +70℃ |
| Storage Temperature | -40 ~ +85℃ |
| Atmospheric Pressure | 70 kPa~110 kPa |
| Relative humidity | 5% ~ 95% (no condensation or freezing inside the product) |
| Above sea level | ≤ 3000m |
| Electrical Insulation | IEC 60255-5 (GB/T 14598.3), 2kV@1 minute |
| Insulation resistance | >100MΩ/500V AC |
| Electrostatic Discharge (ESD) Immunity Test | Level 4 |
| Fast Transient Burst (FTB) Immunity Test | Level 4 |
| Surge (Transient Overvoltage) Immunity Test | Level 4 |
Product Overview
The GW-LR60 protection and control device is a new-generation relay protection product developed to meet the requirements of modern power systems. It provides comprehensive protection functions for primary equipment at 35 kV and below, including lines, transformers, motors, capacitors, and feeders.
The series is built around an industrial-grade microprocessor and integrates high-precision CT/VT modules, high-insulation output relays, and a highly reliable switching power module. It features high integration, comprehensive protection configurations, strong anti-interference performance, low power consumption, and robust environmental resistance, while supporting convenient on-site maintenance and commissioning. The devices can be installed in distributed configurations on switch cabinets or configured in screen-mounted setups.
Anatomy of Precision
Protection Functions
Current Protection: 50P-1/2/3, 50P, 51P, 50N, 51N, 46, etc.
Voltage Protection: 59PR, 27PR, 81O, etc.
Power Protection: 32P, 25, 79, SOTF AR Protection
Monitoring: CT Monitor, LOP, 74TC, etc.
Load Protection: Too long starting time protection, Overheat protection, LR, etc.
Logging & Time Synchronization Functions
Supports categorized query of 256 event records; data retained during power loss
Supports software time synchronization; internal clock error ≤ 1 s per 24 hours
Supports the call of WR data
Measurement Functions
Supports primary/secondary measurements
Supports forward/reverse active & reactive energy
Supports voltage, current, frequency, power, and power factor, etc.
Communication Functions
Standard 1× RS-485 communication interface (P1 port)
Supports Modbus-RTU industrial protocol
3 voltage inputs, 4 current inputs
9 DI, 5 DO
Supports remote control operation
Compliance Information
GR-LR60-G fully compliant with applicable EU directives and standards.
Application Fields
GR-LR60 has rich and comprehensive protection functions, and is applicable to various medium and high voltage power systems, and can be used for:
Distribution transformer protection
Capacitor protection
Bus section protection
Feeder protection
Motor protection
Backup protection for various electrical equipment
Cutout Dimensions and Installation Diagram (Unit: mm)
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