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Medium-voltage Power Distribution Products
FAQ within [ Medium-voltage Power Distribution Products ]
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That is described as below. (1) By laying ZCTs for two feeders having different loads, detected by one earth fault directional relay. In this case, it i... More Details >>
- No:23724
- Release Date:2018/09/19 17:16
- Update:2018/09/20 14:23
- Category: Protection Relays - MELPRO-A Series , MDG
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Up to 5 units. To connect 6 or more units, use Vo extended terminals (M-N) of a relay connected from MPD-3 type. From this Vo extended terminals, additional ... More Details >>
- No:23725
- Release Date:2018/09/19 17:16
- Category: Protection Relays - MELPRO-A Series , MDG
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It is required that the resistance is lower than 5 ohm for a go and return length using sealed cables. The high voltage receiving facility rule defines “The ... More Details >>
- No:23730
- Release Date:2018/09/19 17:16
- Category: Protection Relays - MELPRO-A Series , MGR
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Contact recovery delay after applying voltage
This relay has a capacitor to operate in case of the lost power or at the maximum settling of an operation time. Because this capacitor needs a time to be ch... More Details >>
- No:23734
- Release Date:2018/09/19 17:16
- Category: Protection Relays - MELPRO-A Series , MUV
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The contact recovers automatically. More Details >>
- No:23736
- Release Date:2018/09/19 17:16
- Category: Protection Relays - MELPRO-A Series , MUV
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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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It operates. More Details >>
- No:23739
- Release Date:2018/09/19 17:16
- Category: Protection Relays - MELPRO-A Series , COMMON
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Set the frequency to meet the frequency of the region. Incorrect frequency prevents correct detection. More Details >>
- No:23740
- Release Date:2018/09/19 17:16
- Category: Protection Relays - MELPRO-A Series , COMMON
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The viewpoint of the definite time factor characteristic graph
It means multiples of the settling value. For example, when a definite time factor operation settling value of a relay is 3 A, 1x is read as 3 A and 5x is re... More Details >>
- No:23705
- Release Date:2018/09/19 17:16
- Category: Protection Relays - MELPRO-A Series , MOC
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