This FAQ has been written for NEAL (North East Africa and Levant) region. If you are looking for information for another region, please select the correct country from the top-left dropdown in the page and 'Navigate to Browse FAQs' in the Support menu.
Feature 34A - Opening of the contact will prohibit transferring to the normal source
Feature 34B - Opening of the contact will prohibit transferring to the emergency source
Below are the simulations that were done to observe the operation of Feature 2B & Feature 3A when Feature 34 inhibit inputs are active.
TRANSFER NORMAL TO EMERGENCY
- When 34B Contact Closed > Initiate Transfer N>E > TD N>E Countdown Running > Open Contact 34B > TD N>E Countdown Still Running > After Countdown Transfer Inhibited
- -When 34B Contact Open > Initiate Transfer N>E > TD N>E No Countdown > Transfer Inhibited
- When 34A Contact Closed > Initiate Transfer E>N > TD E>N Countdown Running > Open Contact 34A > TD E>N Countdown Still Running > After Countdown Transfer Inhibited
- When 34A Contact Open > Initiate Transfer E>N > TD E>N Countdown Running > After Countdown Transfer Inhibited
- When 34A Contact Open > Initiate Transfer E>N > TD E>N Countdown Running > Close Contact 34A > Switch successfully retransfer to Normal
Released for: Schneider Electric Egypt and North East Africa
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