7/11/2013 7:11 AM | |
Posts: 235 Rating: (52) |
Dear frenz what is anti pumping relay in acb and how its work? what is the other option for same. |
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7/11/2013 9:45 AM | |
Joined: 11/21/2007 Last visit: 9/25/2024 Posts: 2325 Rating: (308) |
Hello jeet2907 Pl see attached a typical Closing circuit of a Circuit breaker . I have highlighted the Anti-pumping portion in the same In this case Y9 is the closing coil of the CB and K1 is the anti-pumping relay inside the CB. The NC Contacts of K1 allow the Closing coil to energise Once everytime a new closing command is issued ( Provided Spring is Charged ) Once K1 Holds the CLosing coil is cut off. TheK1 remains ONas long as Closing command is present. Hope this helps you understand the Anti-pumping feature Cheers Navnag |
Last edited by: Navnag at: 7/11/2013 9:46 AMThere is no such thing as the last bug in a program |
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7/11/2013 10:54 AM | |
Posts: 235 Rating: (52) |
Thanks navnag I have one question ,after breker trip due to any reason should i have to reset antipumping realy or not? |
7/11/2013 11:37 AM | |
Posts: 202 Rating: (16) |
Dear Sir, Thank for the answer but i would like to know that the ANTI PUMPING RELAY that is shown in the drawing isa special protection relay or a simple auxillary relay??
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7/11/2013 2:14 PM | |
Joined: 11/21/2007 Last visit: 9/25/2024 Posts: 2325 Rating: (308) |
Hello jeet2907 You don't need to reset the anti-pumping relay. It gets reset automatically as soon as Close command is withdrawn Hello @nkur It is a simple auxiliary relay normally installed inside the ACB. In Old ACBs without built-in ANti Pumping relays, you may have to make this circuit externally using a auxiliary relay Hope this helps Cheers Navnag |
Last edited by: Navnag at: 7/11/2013 2:16 PMLast edited by: Navnag at: 7/11/2013 2:15 PMThere is no such thing as the last bug in a program |
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7/12/2013 9:20 AM | |
Posts: 43 Rating: (9) |
Hello Dear, Here is the another scheme for your reference (pls find the attachment), in which contact S1 is work as anti pumping contact which doesn't allow close command repetadely to closing coil during ON condition. Also contact K4 (No Fault contact) doesn't allow close command to closing coil during TRIP/FAULT condition. Hope this will satisfy all your confusion. regards Attachmentanti pumping feature.pdf (988 Downloads) |
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7/15/2013 9:53 PM | |
Posts: 109 Rating: (11) |
thank you very much to all I also wanted to know about this anti pumping relay nice work |
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