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3WL breaker extended protection

Created by: Santoosh at: 6/2/2009 7:41 AM (12 Replies)

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6/2/2009 7:41 AM	Rate (0)
Santoosh Posts: 22 Rating: (7)	Dear All, There is an phase rotation protection parameter avaible in switch ES. How does the breaker know the change of phase rotation? Regards, Santoo........
Santoosh Posts: 22 Rating: (7)
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6/20/2009 5:17 PM	Rate (0)
IBN-Service Posts: 8946 Rating: (1000)	Santoosh Dear All, There is an phase rotation protection parameter avaible in switch ES. How does the breaker know the change of phase rotation? Regards, Santoo........ By comparing the actual voltage of the three phases, like any "rotation direction - detector".
IBN-Service Posts: 8946 Rating: (1000)
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6/20/2009 7:52 PM	Rate (0)
Navnag Platinum Member Joined: 11/21/2007 Last visit: 7/25/2025 Posts: 2326 Rating: (309)	Hi The ETU is sensing all three phases from the PTs. From the cyclic wave pattern of the the three phases ( Whether the Y & B phases are Ahead by 120 Deg or Behind ) is can easily check if the Phase rotation is correct or not. Hope this answers your question. Best Regards Navnag
	There is no such thing as the last bug in a program There are no stubborn bugs, There are only stubborn Debuggers.
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6/24/2009 6:11 AM	Rate (0)
Valli Posts: 262 Rating: (45)	Hi santosh, I'm with Navnag for the same in addition to that i would like to send you the file as attached from the manual. Hope your query is replied with this. Attachment Doc1.zip (444 Downloads)
Valli Posts: 262 Rating: (45)
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5/21/2014 6:52 PM	Rate (0)
@nkur Posts: 202 Rating: (16)	IBN-Service Santoosh Dear All, There is an phase rotation protection parameter avaible in switch ES. How does the breaker know the change of phase rotation? Regards, Santoo........ By comparing the actual voltage of the three phases, like any "rotation direction - detector". Hi there Could you please eleoborate as occording to you the CB has measure the ohase angle of all phases is it so???
@nkur Posts: 202 Rating: (16)
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5/24/2014 9:33 AM	Rate (0)
jeet2907 Posts: 235 Rating: (52)	dear all, I cant understand wahat you are said this facility available in every CB?
jeet2907 Posts: 235 Rating: (52)
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5/24/2014 12:49 PM	Rate (0)
Navnag Platinum Member Joined: 11/21/2007 Last visit: 7/25/2025 Posts: 2326 Rating: (309)	jeet2907 dear all, I cant understand wahat you are said this facility available in every CB? This function is only available with the option "Metering Plus" Function for 3WL ACBs. Pl see attachment. It is not a part of the standard ETU functions. Hope this helps Cheers Navnag Attachment SENTROL_3WL_Metering_Function_Plus.pdf (522 Downloads)
	There is no such thing as the last bug in a program There are no stubborn bugs, There are only stubborn Debuggers.
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5/25/2014 12:56 PM	Rate (0)
@nkur Posts: 202 Rating: (16)	[quote user="Santoosh"] Dear All, There is an phase rotation protection parameter avaible in switch ES. How does the breaker know the change of phase rotation? Regards, Santoo........ hi there I would like to add a question to the above question is it has a inbuilt single phase preventer......
@nkur Posts: 202 Rating: (16)
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5/25/2014 1:01 PM	Rate (0)
@nkur Posts: 202 Rating: (16)	[quote user="Navnag"][quote user="jeet2907"]dear all, I cant understand wahat you are said this facility available in every CB? This function is only available with the option "Metering Plus" Function for 3WL ACBs. Pl see attachment. It is not a part of the standard ETU functions. Hope this helps Cheers Navnag hi there is this facility available only in the perticular mentioned metering function of 3WL ??????
@nkur Posts: 202 Rating: (16)
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5/25/2014 1:03 PM
@nkur Posts: 202 Rating: (16)	[quote user="Navnag"][quote user="jeet2907"]dear all, I cant understand wahat you are said this facility available in every CB? This function is only available with the option "Metering Plus" Function for 3WL ACBs. Pl see attachment. It is not a part of the standard ETU functions. Hope this helps Cheers Navnag hi there is this facility available only in the perticular mentioned metering function of 3WL ??????
@nkur Posts: 202 Rating: (16)
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5/25/2014 1:49 PM	Rate (0)
Navnag Platinum Member Joined: 11/21/2007 Last visit: 7/25/2025 Posts: 2326 Rating: (309)	@nkur hi there is this facility available only in the perticular mentioned metering function of 3WL ?????? Yes !! This function is only available with the option "Metering Plus" Function for 3WL ACBs. and can only be used with ETU 45B and above
	There is no such thing as the last bug in a program There are no stubborn bugs, There are only stubborn Debuggers.
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5/25/2014 1:56 PM	Rate (0)
Navnag Platinum Member Joined: 11/21/2007 Last visit: 7/25/2025 Posts: 2326 Rating: (309)	@nkur hi there I would like to add a question to the above question is it has a inbuilt single phase preventer...... Yes ... Single Phase Protection is available through the Protection Function : "Phase Unbalance - Voltage" : Setting Range : 5-50% Delay : 1-15 Sec ( Pl. see Table 2-8 of Metering Plus Module Manual attached in my previous post )
	Last edited by: Navnag at: 5/25/2014 1:56 PM There is no such thing as the last bug in a program There are no stubborn bugs, There are only stubborn Debuggers.
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5/26/2014 2:28 PM	Rate (0)
jeet2907 Posts: 235 Rating: (52)	Dear all, for extended function fcility in WL pls find the attachment this will help you..... Attachment Sentron WL Datasheet.pdf (407 Downloads)
jeet2907 Posts: 235 Rating: (52)
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