SEL-700GW
Price: $3,774.38 | Savings: $130.00
- Wind generator protection
- Comprehensive protocols, including IEC 61850 and DNP3, for easy integration
SEL-700G
Generator Protection Relay
The SEL-700G is the right solution for utility and industrial generator protection, with an autosynchronizer, flexible I/O, and advanced communications. It provides a complete protection and synchronization solution for synchronous generators, so you can eliminate the complexity and cost of standalone synchronizer packages. Integrating the synchronization capability into the generator protection relay provides the most cost-effective and reliable solution. The 5-inch, 800 × 480 color touchscreen display option allows you to directly set, monitor, and control your system, including up to five two- or three-position disconnect switches. A small form factor and multiple mounting adapters make it easy to upgrade protection without cutting or drilling existing cutouts. You can quickly integrate the SEL-700G into serial- or Ethernet-based communications with IEC 61850 Edition 2, EtherNet/IP, the Rapid Spanning Tree Protocol (RSTP), the IEEE 1588 Precision Time Protocol (PTP), IEC 60870-5-103, the IEC 62439 Parallel Redundancy Protocol (PRP), Mirrored Bits communications, Modbus, DNP3, and other protocols.
Starting at
$3,740
Comprehensive Generator Protection
Connect the SEL-700G across small, medium, or large generators for complete primary and backup protection. Adding the optional neutral voltage connection to the SEL-700G provides 100 percent stator ground protection, based on third-harmonic voltage measurements. You can connect the neutral current input to protect solidly grounded or resistance-grounded machines.
Autosynchronizer
Replace external generator control and synchronizer relays with the built-in automatic synchronizer function. You can also visualize and synchronize system parameters on the device using the available color touchscreen display. The SEL-700G automatically synchronizes frequency, voltage, and phase control and connects the generator to the power system. A PC-based synchroscope and generator start reports allow you to monitor the generator synchronization process.
Current Differential Protection
Apply sensitive percentage-restrained current differential elements and an unrestrained element, along with synchronism check and volts-per-hertz elements, to protect both the generator and the step-up transformer. Optional current differential elements detect stator faults using a secure, sensitive current differential function. Power transformer and CT connection compensation allows the unit step-up transformer to be included in the generator differential zone.
Breaker Wear Monitoring
Record accumulated breaker contact wear with the breaker monitor function, which uses the manufacturer’s specifications for defining breaker operation limits. The internal monitor tracks the total number of close/open operations and integrates the interrupted current per phase. You can set an alarm to alert operators when measured and accumulated quantities approach maintenance thresholds. This information facilitates proactive breaker maintenance and replacement without underutilizing resources.
LEA Sensor Inputs
The SEL-700G can be ordered with low-energy analog (LEA) inputs to support medium- and low-voltage applications that use low-energy voltage sensors and Rogowski coils or other low-power current sensors. Order your device with the combination of LEA current and voltage inputs that suits your application.
Easy Communications
Choose from single or dual ports, copper or fiber-optic Ethernet or serial communications, and several protocols, including IEC 61850 Edition 2, EtherNet/IP, IEC 60870-5-103, IEEE 1588 PTP, IEC 62439 PRP and RSTP, Mirrored Bits communications, Modbus, DNP3 serial, and DNP3 LAN/WAN. Multiple Modbus TCP or Modbus serial sessions are available for custom configuration of your application.
Islanding Detection
The optional vector-shift function (78VS) and rate-of-change-of-frequency protection (81RF) support islanding detection.
Reliable Protection in Harsh Environments
The SEL-700G operates in extreme conditions, with an operating temperature of –40° to +85°C (–40° to +185°F), and it is designed and tested to exceed applicable standards, including vibration, electromagnetic compatibility, and adverse environmental conditions. In addition, the SEL-700G is ATEX-certified and Underwriters Laboratories (UL) Class I, Division 2-certified for use in hazardous and potentially explosive environments.
SEL-700G Features
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- Large 2 × 16 character LCD.
- Default messages or up to 32 customizable display labels notify personnel of power system events or the relay status.
- Programmable front-panel tricolor LEDs.
- Customizable pushbuttons and labels.
- User-configurable label kit.
- Two programmable tricolor LEDs per pushbutton.
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- The 5-inch, 800 × 480 display offers direct navigation via a capacitive touchscreen.
- Folders and applications provide quick access to bay screens, metering and monitoring data, reports, settings, and more.
- Full keyboard facilitates easy adjustment of settings.
- The home pushbutton allows you to easily return to the default home screen.
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- Power supply options include 110–250 Vdc/110–240 Vac or 24–48 Vdc.
- An integrated web server enables direct relay access for metering and monitoring data without the need for external PC software.
- A wide variety of communications protocols and media provide flexibility to communicate with other devices and control systems.
- Fiber-optic serial port.
- Mirrored Bits communications provides fast and reliable relay-to-relay communication.
- Positions for optional expansion cards.
- Optional RTD inputs.
- CT and PT inputs are located on one card, allowing for more I/O in other slots.
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- Power supply options include 24–48 Vdc or 110–250 Vdc/110–240 Vac.
- A wide variety of communications protocols and media provide flexibility to communicate with other devices and control systems.
- Accelerate firmware downloads via the Ethernet port.
- Fiber-optic serial port.
- Mirrored Bits communications provides fast and reliable relay-to-relay communication.
- Positions for optional expansion cards.
- Optional RTD inputs.
- LEA current and voltage sensor inputs.
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- Bay Screens and Bay ControlSelect from predefined bay screens, or configure your own bay screens using the acSELerator Bay Screen Builder SEL-5036 Software and acSELerator QuickSet SEL-5030 Software. With the bay screen, you can control as many as two breakers, monitor as many as eight disconnect switches, and view analog and digital data in a contextual display. To control a breaker, simply tap the Bay Screens application on the home screen and then the breaker you want to control.
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- AuthenticationEnter your Level 2 password and tap Submit. The onscreen keyboard allows you to quickly and easily enter passwords, search for Relay Word bits, and enter settings whenever necessary.
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- Breaker ControlTap Trip or Close to control the breaker. When asked to confirm the action before the operation is completed, choose Yes or No.
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- Meter FundamentalsView the real, reactive, and apparent power of each phase in your system, and monitor the power factor information to determine if the phase current leads or lags the phase voltage.
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- Meter PhasorsView a graphical and textual representation of the realtime voltages and currents in a power system during balanced and unbalanced conditions. By analyzing the phasors, you can determine power system conditions.
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- Meter EnergyDisplay the real, reactive, and apparent energy metering quantities imported and exported by your system. You can reset the energy values via the display and record the time and date of reset. The metered quantities accurately account for the power system energy flow, whether your system is a net energy producer or consumer.
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- Sequential Events RecorderEasily review the time-stamped Sequential Events Recorder (SER) data, including whether or not the Relay Word bit asserted or deasserted, during root cause analysis of an event.