Metering Solutions

SEL metering solutions offer leading power quality capabilities with exceptional revenue metering accuracy at an economical price. Combining SEL-735 Power Quality and Revenue Meters with SEL-5705 Synchrowave Reports helps you support system optimization by trending energy usage, identifying peak demands, and helping locate power quality disturbances. Industry standard communications deliver critical and historical information to virtually any communications system in substations, industries, or power plants.

We provide best-in-class solutions backed by a standard ten-year warranty, including hardware, reporting software, and mounting solutions. Our prewired solutions reduce shop and field time and provide a secure housing with plenty of room for accessories. And if you need assistance putting together a metering system, the SEL Engineering Services Metering Services team is ready to help.

Ensure Accurate Revenue Metering

Exceed ANSI C12.20 0.1 accuracy class and IEC 62053-22 0.1 S accuracy class requirements with bidirectional, full four-quadrant energy metering for generation, interchange, transmission, distribution, or industrial applications. Many new metering installations, such as distributed generation, operate over a wide current range. The SEL-735 accurately reports energy even in the presence of harmonics and distorted waveforms and provides high accuracy over an extended operating range.

Log Profile Data

Collect billing data with a simple-to-use load profile recorder that captures years of data. Independent load profile recorders in the SEL-735 allow simultaneous meter and power quality logging of up to 512 analog channels for up to 20 years. SEL meters trend averages, minimums, maximums, changes, and snapshots at a rate as often as every three seconds.

Measure and Report Reliable Power Quality Indicators

Ensure precise and reliable measurements with IEC 61000-4-30 Class A power quality compliance. The SEL-735 measures harmonics, interharmonics, flicker, power factor, voltage disturbances, K-factor, and other key power quality indicators. It can record 10,000 oscillography events with programmable trigger conditions, such as a voltage interruption. Enabled from the factory, the voltage, sag, swell, and interruption (VSSI) recorder time-stamps voltage excursions with up to 1 ms resolution and records indefinitely using an adaptive sampling rate.

Streamline Commissioning, Testing, and Daily Use

View real-time metered quantities, phasor diagrams, voltage and current waveforms, and more with the SEL-735 touchscreen meter’s intuitive interface and always-on display. Quickly navigate between applications and folders, set complex passwords, and configure settings without connecting a laptop. Speed up accuracy testing by visualizing test pulses, accumulated energy, and instantaneous signals.

Organize, Optimize, and Visualize Site-Wide Data

Synchrowave Reports consolidates site-wide data and displays it for analysis. The software generates charts and reports to help manage data and drive planning, operations, and billing decisions. A REST API can be used to integrate DMA collected data with third-party software or other databases for custom reporting.

Retrofit Installations Easily

Reduce wiring and connections by replacing socket meters with the SEL-735. Standard connector blocks make interconnections simple. We also offer prewired solutions that save time and provide a secure housing, including room for accessories. You can mount an SEL meter on a wall, in an indoor enclosure, outdoors, or on a swing bracket, panel, cabinet, or rack. For a novel draw-out solution, we also offer an Easily Extractable Meter (EXM) option.

Recent Meter Enhancements

Up to 1 GB of memory

Up to 512 logging channels
Firmware upgrade over Ethernet
Digitally signed firmware
Firmware upgrade metering downtime of less than 1 minute
Up to 10x faster data download speed through acSELerator QuickSet SEL-5030 Software HMI
ANSI 0.1 accuracy class compliance
Real-time waveforms with the Wave View oscillography functionality

Improve reliability and enhance the integration of variable resources into the bulk power system. Meters installed at renewable energy generation points can provide fast streams of accurate synchrophasor data to the system operator. The SEL-735 includes the latest version of the synchrophasor standard, IEEE C37.118.1a-2014, which makes it ideal for applications requiring fast response times under dynamic conditions.

Share intertie data and limit privileges to read-only access using the SEL-3620 Ethernet Security Gateway. Alternately, you can choose the SEL Remote Intelligent Gateway (RIG) solution for read and control access. The SEL-3530 Real-Time Automation Controller (RTAC) allows the independent system operator (ISO) to access plant information for generation control.

Synchrowave Reports provides charts and reports that help you visualize the consumption of energy. You can use this information to avoid peak demands by creating a schedule that moves overlapping electric processes to off-peak hours. Automated data collection improves efficiency by eliminating the need to manually collect data from field devices. Use SEL DMA Meter Monitoring to streamline downloading and storing device records.

The ITI (CBEMA) curves and detailed voltage event graphs can help both plant operators and power producers resolve issues before they affect consumers. The ITI curve classifies voltage events to indicate disturbance severities that cause malfunctions, such as insulation failure, overvoltage trips, or load dropout. Critical information is directly accessible at the control center with SCADA-ready SEL meters. Up to ten simultaneous communications sessions provide real-time data, enabling operators to respond quickly to disturbances, reclosing events, alarms, and device failures.