Technical Specifications Module Type: Multifunction Power‑Quality Monitor & Protection Relay Applicable System: Industrial and Power‑Plant Auxiliary Power Distribution System Measurement Input: Three‑phase voltage and current transformer inputs Protection Function: Over‑current, over‑voltage, under‑voltage, power‑quality event detection Communication Interface: Serial communication port for upper‑system data upload Power Supply: Auxiliary DC/AC operating power supply Operating Temperature: ‑20 ℃ to +65 ℃ Storage Temperature: ‑40 ℃ to +85 ℃ Relative Humidity: 5%‑95%, non‑condensing Mechanical Dimension: Standard panel‑mount relay housing Certifications: CE, UL power‑system relay compliance
Functional Features Measures multi‑channel three‑phase electrical parameters including voltage, current, active and reactive power, power factor. Detects power‑quality abnormal events: voltage sag, swell, transient fluctuation and harmonic components. Implements configurable over‑current, over‑voltage and under‑voltage protection action logic. Internal event‑recording function stores power‑quality and fault‑event history data. 
Structural Characteristics Standard panel‑mount metal‑plastic combined housing. Front‑panel liquid‑crystal display screen, operation‑setting buttons and status LED indicators. Rear‑side screw‑type terminal blocks for CT/PT measurement‑input, auxiliary power and communication‑wiring connections.
Working Principle Three‑phase voltage and current signals from potential transformers and current transformers are fed into relay measurement input terminals. Internal sampling circuit converts analog electric signals into digital values. Relay calculates electrical parameters and analyzes power‑quality indexes. When measured value exceeds user‑configured protection threshold, corresponding protection‑action logic is triggered.
Installation Requirements Install relay through standard cabinet‑panel cut‑out and fasten with panel‑mount fixture. Complete all CT/PT measurement‑input wiring, auxiliary‑power wiring and communication‑port wiring according to GE wiring diagram.
There are no reviews yet.