SEL-735
Power Quality and Revenue Meter
The SEL-735 offers high-accuracy metering combined with detailed power quality analysis. With data available at their fingertips, operators can easily identify power system anomalies and mitigate their impact. For high-accuracy revenue metering applications, the SEL-735 exceeds ANSI C12.20 0.1 and IEC 62053-22 0.1 S accuracy class requirements over a wide current range. The SEL-735 maintains this accuracy through its entire service life, eliminating costs associated with field calibration. This makes the SEL-735 the premier choice for points of common coupling, interchanges, and critical loads. With optional continuous waveform streaming, the SEL-735 precisely samples and sends waveform data from the power system at 3 kilosamples per second (ksps). Accessories and Mounting Options
Starting at
$2,260
Ensure Accurate Revenue Metering
Exceed Accuracy Class 0.1 requirements with bidirectional, full four-quadrant energy metering. The SEL-735 remains accurate over its entire life without requiring recalibration and provides precise measurements even in the presence of distorted waveforms.
Capture Power Quality Disturbances
The SEL-735 measures harmonics, interharmonics, flicker, power factor, voltage disturbances, K-factor, and other key power quality indicators with full conformance to IEC 61000-4-30 Class A requirements.
Record Long-Term Trends
The load profile recorder captures years of data with simultaneous meter and power quality logging of up to 512 analog channels for up to 20 years. The SEL-735 can trend averages, minimums, maximums, changes, and snapshots at a rate as often as every three seconds.
Stream and Record Waveform Data
The SEL-735 captures every disturbance in your power system. Optional continuous waveform streaming precisely samples voltage and current signals at 3 ksps and sends the data to SEL Synchrowave software for visualization.
Record Voltage Sag, Swell, and Interruption (VSSI) Data
The VSSI recorder time-stamps voltage excursions with up to 4 ms resolution and records indefinitely using an adaptive sampling rate.
Streamline Commissioning and Testing
View real-time metered quantities, phasor diagrams, voltage and current waveforms, and more with the intuitive touchscreen display. Speed up accuracy testing by visualizing test pulses, accumulated energy, and instantaneous signals.
Bundle Hardware and Software
Automate data retrieval, quickly visualize data, and create custom reports with the enterprise data collection and reporting software bundle, which includes Synchrowave Reports software. View software bundling options here.
Minimize the cost of harmonic mitigation with continuous waveform recording
David Renfro from Infiniti Integration Services describes SEL continuous waveform recording as the arbiter of truth and as a method for capturing all disturbances without custom event trigger logic. Learn how he optimizes filter designs for harmonics caused by variable-speed motor drives.
Continuous waveform streaming system
SEL-735 Features
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- Capacitive 5-inch (12.7 cm) color touchscreen
- Continuous monitoring for all three power system phases; customizable screens that provide useful defaults, large fonts, and numerous choices for analog quantities
- Folders and applications to access information
- Six programmable LEDs
- USB Type-C port
- Simple Test Mode access
- Customizable local controls
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- Customizable three-line or single-line display
- Customizable scaling and formatting
- Simple front-panel navigation
- Six programmable LEDs
- Customized local controls
- ANSI Type II optical port or EIA-232 port
- Custom nameplate and barcode
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- Power supply board: 2 inputs, 3 outputs
- Main board: RJ45 copper or fiber-optic Ethernet, EIA-232, IRIG-B, EIA-232/-485
- Communications board: EIA-485, telephone modem, EIA-232
- Sealing provision
- I/O board: 4 inputs, 4 outputs (solid-state or electromechanical); or 4 analog outputs, 4 solid-state outputs
- CT and PT inputs board
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- View cycle-by-cycle voltage and current waveforms in real time.
- The Wave View feature provides oscilloscope-like visibility to help you identify system distortions and troubleshoot power quality issues that affect sensitive equipment.
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- Analyze the real-time voltages and currents in a power system during balanced and unbalanced conditions.
- Use phasor data to verify correct system wiring during commissioning and identify changes as loads vary.
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- View energy metering quantities imported and exported by the system.
- Reset energy values via the display, and record the time and date of reset.
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- Speed up accuracy testing by visualizing test pulses, accumulated energy, and instantaneous signals.
- When in Test Mode, the SEL-735 freezes the billing quantities to isolate your test inputs from revenue billing.
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- Monitor power quality anywhere with the rugged SEL-735. The portable meter logs years worth of data with 1 GB of onboard memory.
- Clamp-on CTs and clip-on voltage leads detect current and voltage disturbances.
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- The easily extractable meter uses simple retrofit brackets to replace draw-out meters.
- For field testing, pull the quick-release latches and remove the disconnects to extract the meter.
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- Replace socket meters with a low-cost enclosure and prewired FT-1 test switch.
- Install the meter quickly due to design features including DIN rails for accessories, a lockable stainless-steel latching system, wall-mount brackets, and wire clamps. The fully sealed enclosure complies with NEMA 4X and IEC 60529 Type IP66 ingress protection requirements.