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amitabha0107
Power-User

Join Date: Feb 2011
Location: Shimurali, Westbengal,India
Posts: 119

Lock Out Relay

08/03/2011 2:21 AM

What is the need of duplicating Lock out relays?

How groups are formed for each protection to lock ou relays?
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Tornado
Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 21017
Good Answers: 795
#1

Re: Lock out relay

08/03/2011 4:19 AM

The second question is hard to understand. Can you rephrase it?

__________________
 In vino veritas; in cervisia carmen; in aqua E. coli.
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electricalexpert65
Guru

Join Date: Oct 2009
Posts: 2061
Good Answers: 169
#2

Re: Lock Out Relay

08/03/2011 10:22 AM

Redundancy
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hbadhan
Associate

Join Date: Aug 2011
Location: India
Posts: 29
Good Answers: 2
#3

Re: Lock Out Relay

08/03/2011 11:12 AM

Two lockout relays are also used to differentiate "Electrical Fault Trip" and "Process Trip".
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electricalexpert65 (1); hbadhan (1); Tornado (1)

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