ELECTRONICS EARTH-FAULT DETECTION SYSTEM
Trailblazing systems for a safer and greener world
Trailblazing systems
for a safer and greener world
EARTH-FAULT DETECTION SYSTEM
90-240 V AC/DC
Trench’s Earth fault detection system is used to reliably locate the faulty feeder for both high and low impedance faults increasing safety and the efficiency of the system.
CHARACTERISTICS
- All-purpose controller for different brands of load-adjustable ASC
- Built-in display
- Can be installed in a standard 19″ rack
- Available as a combined control and detection unit
APPLICATION AREAS
- Faulty feeder detection during Earth Faults
- Power distribution network
- Compensated (Resonant earthed) electrical systems
MAIN FEATURES
Any ASC brand, maintenance free and easy to handle
EFD 500
Fulfills the highest requirements in the selective detection of earth faults. The combination of the admittance method with additional algorithms, offers reliable and selective earth-fault detection.
EFD 500c
With all the features of the successful EFD 500, Trench developed an alternate with the EFD 500c - a compact device with control & detection capabilities.
Ease of use
The EFD 500 and EFD 500C are easy to use due to integrated displays, scroll wheels and clear function keys. They can be remotely controlled and have additional displays for control and detection modes.
Design Features
Microprocessor based flexible hardware configuration, 19‘‘-rack mountable and extended operations via PC by a terminal program are some advantages of the EFD 500 and EFD 500C.
Hardware Options
Includes alternative power supply, optical port for serial communication and IEC61850 communication port, RJ45, .
Software options
Equipped with an automatic reclosing unit, SCADA, supports short-time disconnection of faulty feeders. The EFD 500c has a software option for the earth fault compensation control function.
PRODUCT APPLICATIONS
Combined Control
and Detection Device
Reliable earth-fault detection
The EFD 500 family sets high standards that cannot be achieved with traditional earth fault protection techniques, due to its multi-functional features and high-end technology.
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