Voltage imbalance between the three phases (e.g., 390V, 375V, 380V) causes a large increase in current imbalance, leading to motor overheating and reduced torque. The GMR-32B monitors the ratio of the maximum deviation from the average voltage. The standard GMR-32B will typically trip when the imbalance exceeds 10%, while the GMR-32BD variant may trip at a higher threshold of 20%. In either case, the imbalance will activate the "缺相" indicator.
The status LED indicators provide instant feedback on your three-phase line health:
Wire the output side to your motor starter circuit or contactor coil.
The GMR-32B Phase Controller is a high-performance, industrial-grade power management device designed for precise electrical phase regulation, motor speed control, and heating element modulation. This manual provides comprehensive instructions for installation, wiring, programming, and troubleshooting the GMR-32B unit. 1. Product Overview and Technical Specifications gmr-32b phase controller manual
COCIS phase sequence relay GMR-32B 6060009 three ... - AliExpress
: Use insulated copper wires with a cross-sectional area ranging from
If all three phases are normal and sequenced properly, the "Normal" LED will light up, and the contacts will allow current to energize the motor starter or contractor. Industry Applications Voltage imbalance between the three phases (e
Are you troubleshooting a or looking for the wiring diagram for a particular installation?
(ranges include 220V to 460V depending on the specific model). Frequency: Compatible with power systems. Contact Capacity: Typically rated at DIN rail (HT35) or screw mounting. Indicators: Features 5 LED indicators to signal status:
Connect the positive control wire to Terminal 2 and the ground wire to Terminal 3. In either case, the imbalance will activate the
The (also recognized as the COCIS GMR-32B phase sequence relay) is a specialized three-phase power supply monitoring device engineered to safeguard electrical hardware against severe grid anomalies. This comprehensive technical manual serves as an installation, operation, and troubleshooting guide for field technicians and electrical engineers operating systems rated up to 460VAC (and up to 690V for the specialized Smart series). Technical Specifications & Core Metrics
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