SEL-735

Power Quality and Revenue Meter

The SEL-735 is a world-class power quality and revenue meter. Designed for high-value power systems, it offers precision that exceeds ANSI C12.20 Class 0.1 and IEC 62053-22 Class 0.1 S accuracy standards. A key feature is its guaranteed accuracy for life, which eliminates the need for periodic field or factory recalibration.

Key Features

Ultra-High-Precision Revenue Metering

Complies with the most stringent ANSI and IEC accuracy standards and supports various wiring configurations (Form 5, Form 9, etc.) for precise energy billing.
Class A Power Quality (PQ) Monitoring

Fully adheres to the IEC 61000-4-30 Class A standard, detecting and recording all power quality events such as voltage sags, swells, and interruptions.
High-Resolution Waveform Capture

Captures waveforms at a rate of up to 512 samples per cycle and offers optional continuous waveform streaming at 3 ksps for detailed post-event analysis.
Synchrophasors

Provides real-time visibility into the grid by transmitting up to 60 messages per second according to the IEEE C37.118.1a-2014 standard.
Advanced Harmonic Analysis

Measures individual harmonics up to the 63rd order and calculates Total Harmonic Distortion (THD) to precisely monitor power system pollution.
Large-Scale Data Logging

Supports up to 512 Load Data Profile (LDP) channels, allowing for the storage of long-term power usage patterns and quality data.

5-Inch Color Touchscreen

Features a large touchscreen HMI that allows users to intuitively view phasor diagrams, waveforms, metering values, and power quality data locally.
Powerful Communication and Integration

Supports up to ten simultaneous communication sessions and provides various interfaces, including Ethernet (copper/fiber), serial, and infrared ports.
Universal Protocol Support

Compatible with a wide range of industry standards, including IEC 61850, DNP3 (Serial and LAN/WAN), Modbus (RTU/TCP), MV-90, FTP, and Telnet.
Calibration-Free Guarantee

Designed for high reliability to maintain accuracy for the life of the product without requiring recalibration, significantly reducing operational costs.
WaveView Software Support

Provides tools to visualize and analyze captured waveform data, assisting in the rapid identification of fault root causes.
Flexible Hardware Options

Available in panel-mount or rack-mount models and supports universal power supplies covering a wide range of voltages.