FAQ


FAQAbout Products
- FAQ > Medium-voltage Power Distribution Products > Protection Relays
FAQ
Keyword Search
FAQ within [ Protection Relays ]
-
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
-
The contact recovers automatically. More Details >>
- No:23736
- Release Date:2018/09/19 17:16
- Category: Protection Relays - MELPRO-A Series , MUV
-
Combination with other companies' peripheral devices
It is impossible. In Standard JIS C 4609, warranty is covered for combination of peripheral devices and relays. Therefore, combination with other companies’ ... More Details >>
- No:23718
- Release Date:2018/09/19 17:16
- Category: Protection Relays - MELPRO-A Series , MDG
-
The contact recovers automatically. More Details >>
- No:23717
- Release Date:2018/09/19 17:16
- Category: Protection Relays - MELPRO-A Series , MOC
-
A lighting condition of the RUN LED
It lights up with 85 V or more control power. More Details >>
- No:23721
- Release Date:2018/09/19 17:16
- Category: Protection Relays - MELPRO-A Series , MDG
-
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
-
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
-
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
-
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:23720
- Release Date:2018/09/19 17:16
- Category: Protection Relays - MELPRO-A Series , MDG
-
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
21-30 of Total 36