GETTING STARTED WITH ROUTE RELAY INTERLOCKING - PART 3

SMCR/SMR CIRCUIT

• Full Form: Station Masters Control Relay
• This relay is energized when the SM’s panel key is `IN’ and turned to Normal Position. (यह रिले तब सक्रिय होती है जब SM पैनल कुंजी `IN 'होती है और नार्मल  पोजीशन में टर्न्ड हो)

• Purpose : The Energisation  of SMCR/SMR relay provides authorized operation of all the functions on the panel.(SMCR / SMR रिले का एनर्जाइज़ेशन पैनल पर सभी कार्यों का अधिकृत संचालन प्रदान करता है।)

• The energised contacts of SMCR are used in button circuits(Except GNR  Circuits), point operation circuits, route initiation circuits, route cancellation circuits, emergency circuits, crack handle circuits, timer circuits etc.

• When SM's key is turned to reverse or locked position and taken out from the panel by SM, the SMR relay drops.

• It prevent un-authorized operation and Lock the panel in last operated position.
• except throwing the signal to danger.
• Lets try to operate the point no 51 but point will not move. In the similar way try to lower signal but the signal cannot  be taken OFF.
• In Emergency signal can be put back to ON position by pressing and releasing  signal button concerned and EGGN button.

Thanks:)