Low Voltage Protection Relay

DEIF’s Uniline is the longest-running product line from this leading company. Ever since the introduction of this product line, DEIF has been using it to offer highly reliable and flexible relays that can be used to protect your electrical systems and networks. For a reason this series of products is considered the basis for the development of other power management solutions.

Would you like to know more about DEIF’s protection relays and do you have questions about applying relays in your systems? Get in touch with us. Our experts will be happy to tell you more about the possibilities and applications of the various products within the DEIF Uniline series.

DEIF’s LMR series provides you with optimal protection in the event of a temporary loss of mains power. These relays protect your generators from damage due to an unsynchronized reconnection to the grid. The LMR relay detects a grid failure provided a disconnection at any point on the grid results in a rapid change in generator frequency (Vector shift). A shutdown command is then sent to the breaker, protecting the generator from damage caused by an automatic reconnection to the grid.

The RMC series is a comprehensive series of overcurrent relays from DEIF that provide your systems with excellent protection against various forms of short circuit, overcurrent and ground fault protection.

The RMF series helps monitor the frequency of generators in 1- and 3-phase networks. The RMF series provides protection against both under-frequency and over-frequency.

With the RMP series from DEIF you provide the desired protection against overload of your generator. Indispensable for systems where the power source has less power than the driven generator.

The relays in the RMQ series protect generators running in parallel in the event of under- or overexcitation. Especially in cases where applying an undervoltage relay for protection is insufficient.

The RMV series are voltage relays from DEIF that can be used to protect generators, motors and transformers from under- or overvoltage in your systems. The RMV series are versatile units with multiple adjustable parameters.

With the MDR series, DEIF comes with a state-of-the-art combined differential protection and short circuit protection relay for generators against internal short circuits (leakage currents). The MDR-2 gives you direct access to all settings and a chronological log of up to 150 historical events/alarms. The device’s integrated LCD display shows all measured and calculated values, eliminating the need for additional meters or wiring, and facilitates troubleshooting related to commissioning fault locations.

Available options include a block protechtion (generator + step-up transformer), option and a short-circuit and overcurrent protection option.

DEIF is a leading Danish company manufacturing electronic devices for the industrial and maritime markets. With its own R&D department in Denmark, DEIF has in recent decades developed products across a broad spectrum that, because of their high quality, are known as the standard in their specific field of application. All DEIF products have type approval and type certificates from the major worldwide classification societies.

Caldic Techniek has been working very productively with DEIF for many years. In combination with our product range of Stamford generators we are able to be a very complete supplier for you as designer and builder of power supplies and electronic systems.

Would you like to know more about the complete solutions we can offer based on our complete product range? We will gladly provide you with advice based on our many years of in-depth experience in the application of our products.