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Protection Relays - MELPRO-D Series

Protection Relays - MELPRO-D Series

Strongly supporting power distribution automation by MELPRO-D series.

The MELPRO-D series are compact multi type relays which contain the necessary elements for the protection of extra high voltage/high voltage power distribution network facilities and devices such as transformers, generators, motors etc. The MELPRO-D series can be connected to a supervisory monitoring system through the application of the communication function (CC-Link).

Overcurrent Relay

The product line-up offers the OCR from single to three phase type, with the three phase type including earth fault protection. Suitable for over current protection on various grounding systems of power networks.

MELPRO-D Series Overcurrent Relay

Voltage Relay

The product line-up offers units containing the necessary elements for under voltage, over voltage and earth fault over voltage protection.
Suitable for distribution bus bar protection, etc.

MELPRO-D Series Voltage Relay

Feeder Protection Relay

The product line-up offers units containing the necessary overcurrent and ground fault protection for the feeder protection of a non-grounded power system. Feeder protection is possible with one unit.

MELPRO-D Series Feeder Protection Relay

Biased Differential Relay for Transformer Protection

Biased differential relay for transformer protection. Suitable for the connection of various types of transformers.

MELPRO-D Series Biased Differential Relay for Transformer Protection

Motor Protection Relay

The product line-up offers units containing the necessary elements for motor protection.

MELPRO-D Series Motor Protection Relay

System Linkage Protection Relay

The product line-up offers units containing the necessary elements for system linkage protection.

MELPRO-D Series System Linkage Protection Relay

Generator Protection Relay

The product line-up offers units containing the necessary elements for generator protection.

MELPRO-D Series Generator Protection Relay

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