Remote Sensing and Online Monitoring

Sei, through its partnership with Electron, provides Intelligent Electronic Device (IED) equipment for protection, supervision and control for transformers, reactors, sub-stations, motors and industrial equipment.

All equipment goes thru production tests to ensure quality and reliability.

    Digital Voltage Regulator
  • The Digital Voltage Regulator Relay is designed to monitor and regulate the automatic voltage of on-load TAP changers up to 51 positions, measure and indicate the deviation of the reference voltage and control, through commands on the switch, the line voltage of the network considering the compensations according to previously programmed load profiles with up to 8 different value sets with input by pre-set time of by external command.
    Tap Changer Position and Parallel Indicator
  • To provide remote online tap changer position and transformer parallel configuration. It can handle up to 32 simultaneous equipment with an intelligent communication protocol to detect potential equipment failure.
    Temperature Monitoring MASTERTEMP®
  • The Temperature Monitor MASTERTEMP® was designed to monitor up to 3 windings oil temperature, to command the cooling system, and to protect distribution and power transformers. The MASTERTEMP® was designed and manufactured following rigorous quality procedures and utilizes the latest generation of electronic components. The hardware is designed to withstand severe weather conditions. The enclosure is protected by a aluminum cabinet allowing installation on Power Transformer and Reactor panels, on the substation, maritime platforms or Chemical factories.
    Oil Level Monitor
  • Electron’s high-precision equipment features microprocessor that indicates the oil level on a scale ranging between 0 and 100%. Provides an analog output (0-10, 0-20 or 4 to 20mA), and also the RS485 serial port with Modbus RTU protocol that allows remote access. The oil level monitor was designed and manufactured following rigorous quality procedures and utilizes the latest generation of electronic components.
    Air cell monitoring relay
  • Developed to detect the presence of fluids (oil, water) on power transformers air cells and/or sealer membrane in order to continuously monitor their integrity, to prevent insulation oil contamination in the case of seal rupture. It can also detect leakage and liquid presence on containment tanks. The liquid temperature can reach a range of -40°C up to 125°C.
    Thermal Protection Relay - EP4
  • The EP4 was developed to monitor up to 4 simultaneous temperature channels to protect dry transformers, motors, bearings, machines and industrial processes. The EP4 is a reliable and a high precision instrument, it commands the cooling fan (ON/OFF), alarms and TRIP (Shutdown), with a programmable timer option.
  • It was designed and manufactured following rigorous quality procedures and utilizes the latest generation of electronic components. The hardware is designed to withstand severe weather conditions. The enclosure is protected by a aluminum cabinet allowing installation on Power Transformer and Reactor panels, on the substation, maritime platforms or Chemical factories.
  • For more information please contact us info@seielectric.com