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Medium-voltage Power Distribution Products
FAQ within [ Medium-voltage Power Distribution Products ]
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Because the contact capacity is different to that of a contact for trip, it cannot be used for tripping. Refer to the catalog for the contact capacity. More Details >>
- No:23737
 - Release Date:2018/09/19 17:16
 - Category: Protection Relays - MELPRO-A Series , COMMON
 
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Because between memories, a value becomes unstable, reset the position to the correct position. More Details >>
- No:23738
 - Release Date:2018/09/19 17:16
 - Category: Protection Relays - MELPRO-A Series , COMMON
 
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Confirmation method of the start-up value
Set the display selection switch on the front upper right of the relay to “Time limit pass.” When a relay detects near the operation value, “0” will be displ... More Details >>
- No:23716
 - Release Date:2018/09/19 17:16
 - Category: Protection Relays - MELPRO-A Series , MOC
 
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It is impossible. It is required to combine with MZT type ZCT dedicated for our products. More Details >>
- No:23729
 - Release Date:2018/09/19 17:16
 - Category: Protection Relays - MELPRO-A Series , MGR
 
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The operating time of the instantaneous factor operating characteristics
That is right. Standard JIS C 4602 defines it shall be 50ms or shorter when 200% of the settling value is input. More Details >>
- No:23706
 - Release Date:2018/09/19 17:16
 - Category: Protection Relays - MELPRO-A Series , MOC
 
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Operating time of undervoltage detection
It operates with a settled operation time. More Details >>
- No:23731
 - Release Date:2018/09/19 17:16
 - Category: Protection Relays - MELPRO-A Series , MUV
 
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This relay uses the input voltage at the VT secondary side (P1-P2) as the relay control power source. When a rated voltage is input, b contact side of the co... More Details >>
- No:23733
 - Release Date:2018/09/19 17:16
 - Category: Protection Relays - MELPRO-A Series , MUV
 
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The application of the overcurrent relay
It is possible. Connect R-phase to the terminal for R-phase of the relay, and T-phase to the terminal for T-phase of the relay. And the direction of a curren... More Details >>
- No:23709
 - Release Date:2018/09/19 17:16
 - Category: Protection Relays - MELPRO-A Series , MOC
 
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In CT circuit, it is 5 A. More Details >>
- No:23713
 - Release Date:2018/09/19 17:16
 - Category: Protection Relays - MELPRO-A Series , MOC
 
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In steady state, it is 5.0 VA, and during operation, it is 6.0 VA. More Details >>
- No:23715
 - Release Date:2018/09/19 17:16
 - Category: Protection Relays - MELPRO-A Series , MOC
 
 
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