Suitable for gateway metering points such as power generation enterprises' grid connections, cross-regional tie lines, provincial grid tie lines, and provincial grid intake points, as well as scenarios with frequent load fluctuations like renewable energy grid connections, electrified railways, and large industrial users.
Application Field
Suitable for gateway metering points such as power generation enterprises' grid connections, cross-regional tie lines, provincial grid tie lines, and provincial grid intake points, as well as scenarios with frequent load fluctuations like renewable energy grid connections, electrified railways, and large industrial users.
Product Features
High accuracy, high stability, high reliability, easy expandability, easy maintenance, flexible communication methods, and the adoption of high-accuracy metering solutions and algorithms with multiple independent intellectual property rights.
Main Functions
Full-wave active energy, fundamental active energy, harmonic active energy, bidirectional metering, and four-quadrant fundamental reactive energy metering.
Supports combined active energy (arbitrary combination of four-quadrant reactive energy).
Time-of-use metering for bidirectional active energy and four-quadrant reactive energy.
Combined active energy, combined reactive energy 1, and combined reactive energy 2.
Time-of-use metering for maximum demand (active and reactive) and its occurrence time.
Dual backup for main and auxiliary time periods and clocks, with automatic error correction.
Minute-interval freeze curves, 24-month monthly freeze curves, and one-year daily freeze curves.
Supports 2-digit, 4-digit, and 6-digit energy data freeze curves with 15-minute intervals, stored for over one year with dual backup, meeting high-reliability and high-resolution data requirements for power spot trading.
Equipped with power quality monitoring functions, including: frequency, voltage, voltage unbalance, current unbalance, harmonic and interharmonic voltage, harmonic and interharmonic current, short-term flicker, long-term flicker, voltage swell, voltage sag, and voltage interruption.
Features event recording and analytical statistics for power quality parameter boundary-crossing events.
Supports power flow traversal energy metering, useful for calculating power flow traversal energy in power plants.
Optional ESAM encryption or physical encryption via programming key.
Serial port module (third RS485 or IRIG-B (DC)) / Ethernet module (2x 100M Ethernet), far-infrared communication interface, independent and supports simultaneous multi-channel reading.
Optional direct satellite timing or IRIG-B (DC) reception from satellite clocks or communication-based timing.
Supports intelligent switching and fault tolerance for timing sources.
Rich grid and meter event recording capabilities.
Large-screen, high-brightness backlit, wide-viewing-angle LCD with customizable display.
Functions for operational analysis, power quality analysis, event query, and historical data query.
