We have a selection of switchgear protective relays to best suit intended applications. All series are digitalized. A self-diagnosis function displays the details of an abnormality detected in the product, allowing a prompt appropriate countermeasure to be taken.

• MEIDEN multi-function digital relay
  High performance and high functional digital relay offering excellent cost performance JEC2500 compliant and B402 applicable
• MEIDEN High-performance multi-function digital relay
  A multi-function all-digital relay, providing protection, monitoring, control, and measuring functions
  JEC2500 compliant and B402 applicable
• MEIDEN MRR Series unit type digital relay
  High functional compact digital relay with smooth renewal capability
  JEC2500 compliant and B402 applicable

1. Spot Network Relay

• A relay for protecting and controlling incoming power equipment in a spot network, incorporating such functions as reverse power shut-off, differential voltage closing operation, non-voltage closing operation, and overcurrent protection
• Applicable also to a system with a cogeneration system linked to a network bus lines.

2. Voltage Adjustment Relay

• A relay that gives control commands to a tap changer during an on-load operation to maintain the desired voltage level.

• * This relay works even at a reverse power flow.

3. Temporary Protective Relay incorporating MRR relays)

• This provides a temporary protection through DZ and DG elements when the protective relays are shut down during maintenance, etc.