GETTING STARTED WITH ROUTE RELAY INTERLOCKING - PART 8

BUTTON RELAY

5) POINT FAIL ALARM CIRCUIT (WXACKNR)

-Whenever any Point fails to set in normal/reverse, then the point indication relay NWKR/RWKR fail to pick up , then WXR OR WXJR(All point indication proving relay) drops, which activate a buzzer and light up an indication on the panel.

- Then the SM acknowledge by pressing point failure acknowledgement button , thereby WXACKNR energies, which stop the Buzzer, but the indication remain ON till the point failure is rectified and indication is obtained.

- WXR is made slow to release, thereby it does not drop when both indication (NWKR/RWKR) are not available during point operation.

GETTING STARTED WITH ROUTE RELAY INTERLOCKING - PART 7

BUTTON RELAY

4) SIGNAL FAIL ALARM CIRCUIT
    OR
    Signal Lamp Failure Acknowledgement Button Relay (GXACKNR)

- If any signal become blank, GXR drops, which activate the signal failure buzzer and light up the signal failure indication on the panel.

- The SM acknowledge by pressing signal lamp failure ACK button thereby signal lamp failure acknowledgement button relay(GXACKNR) energizes.

Step 1

 Step 2

- Thereby the buzzer stop ,but the indication remains ON till the lamp is 
  replaced or the fault is rectified by S&T personal.

- GXR is made slow to release there by it does not drop during aspect changing 
  period and give false alarm.

GETTING STARTED WITH ROUTE RELAY INTERLOCKING - PART 6

BUTTON RELAY

3) WNR AND WNCR CIRCUIT

- Point Button Relay and Point Button Normal relay or Point Button Checking 
  Relay

- The text which is written in violet color ,That we will discus in future lesson

- WNCR is normally a picked up relay and drops when any one of the following 
  button is pressed(For now and for the above circuit consider only point no 1
  i.e 51WN ).

1. Point :example 51WN
2. Crank Handle : CH1NR
3. LC Gate : LXN
4. Siding: KLN
5. Common Point Button(Normal) : NWWNR1
6. Common Point Button(Reverse) : RWWNR1
7. Emergency Point Operation Button : EWNR, EWNPR

- Suppose we pressed point button 51, When the point button is pressed, point button relay WNR is energized provided the following condition are met.

1. All other WNR are in dropped(↓) condition
2. All CH button relay in ↓ condition
3. LC gate Button relay are in ↓ condition
4. KL Siding button relay in ↓ condition
5. GNCR (↑), UNCR(↑), SMR(↑)

GETTING STARTED WITH ROUTE RELAY INTERLOCKING - PART 5

BUTTON CIRCUIT

2) UNR AND UNCR CIRCUIT

- Full Form: Route button Relay and Route Button Checking Relay

- UNCR is normally an energised relay provided that no Route button is in  
  pressed condition(All route button are normal) . UNCR सामान्य रूप से एक एनर्जेटिक
  रिले है, बशर्ते कि कोई रूट बटन दबाए स्थिति में न हो /

- Whenever any route Button UN is pressed then UNCR dropped.
   जब भी कोई रूट बटन UN दबाया जाता है तो UNCR गिरा दिया जाता है।

- Take an example that we pressed Route button number D-6 then the flow of 
   current is shown below.

- Normally UNR -> Dropped 

- When UN    -> Pressed 
           UNR  -> Energises, Provided that the following condition are meet:-

• No Route button is in pressed condition
• SM's Key is IN( i.e SMR picked up condition)
• No point button is in pressed condition (i.e WNCR picked up condition)

GETTING STARTED WITH ROUTE RELAY INTERLOCKING - PART 4

BUTTON CIRCUIT

1. GNR AND GNCR CIRCUIT

- Full Form : Signal Button Relay and Signal Button Checking Relay

- Normally GNCR is in Picked Up condition provided that all GNR are in the de
  energized condition 
  (आम तौर पर जीएनसीआर पिकअप अप स्थिति में होता है  बशर्ते कि सभी 
  जीएनआर डी-एनर्जेटिक स्थिति में हों)
  i.e No signal Button is in the Pressed Condition.

- Whenever any signal button is pressed(example 2GN Button) then concerned 
  GNR picked up ,Provided all other signal GNR are in dropped condition. 
  (जब भी कोई सिग्नल बटन दबाया जाता है तो संबंधित जीएनआर को उठाया जाता है, बशर्ते अन्य सभी 
  सिग्नल जीएनआर गिराए गए स्थिति में हों।)
  i.e No other signal is in the pressed condition and No point button relay is in 
  energised condition(WNCR is in Picked up condition)

- When any GNR is energised the relay GNCR drops immediately. 
  (जब किसी भी GNR रिले को energised किया जाता है तो रिले GNCR तुरंत गिर जाता है।)

- In GNR and EGGNR circuits SMCR front contact is not provided. 
  (GNR और EGGNR सर्किट में SMCR फ्रंट कॉन्टैक्ट नहीं दिया गया है।)

- The reason behind this is to allow the signal to be thrown back to danger in 
  case required in emergence even when the panel is Locked ( SMCR is in 
  dropped condition.)