Microprocessor Network Protector Relay (MNPR®)
The ETI MNPR® is a direct replacement for electromechanical and solid state relays in existing or new Westinghouse and GE Network Protectors. The MNPR® offers a single solution incorporating all features: sensitive, insensitive, time delay, instant, watt-var and inverse watt-var. Real time, three phase data acquisition and calculations, direct readings of network voltage, differential voltage, current, phase angle, and temperature are available. Waveform capture allows complex harmonic analysis and display. Portable programmer and PC software is available for remote and local operation and programming.
In addition, ETI offers two-way communication systems via power line modem, radio, fiber optics, and phone lines. GE and Westinghouse Style two-way communicating MNPR® are available.
The Communicating MNPR® features:
- Up to 8 Analog inputs - typically used to monitor bus temp., pressure, and water level
- 2 Digital inputs - typically used to monitor NP status (O/C)
- 1 Digital ouput - typically used to control an external device, such as a sump pump
- +/- 5Vdc - typically used to power sensors
- Isolated RS485 serial communication port
Our communication system are:
- Easy to install
- Non-proprietary (DNP3 protocol)
- Able to communicate to any SCADA
Please take a look at our Secondary Network Communications Brochure. A link is located on the right side of this webpage.
For more information, please contact Jeffrey Bier at jeffb@richards-mfg.com or (973) 371-1771 ext. 410
