Diesel Loco WDG4 (HINDI) (30 कुट खोलिए )

13-01-2021
DIESEL LOCO – Power Ground
January 5, 2021

DIESEL LOCO - Power Ground  Earth fault occur in power circuit is called power ground. When earth faults in traction motor, traction motor cables, BKT, REV, power contactors, GR1 operates with indications. Check following items - 1. Traction motor cables are tightened properly. 2. If there are any metal or wire pieces in between

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DIESEL LOCO – Safety Devices
January 5, 2021

DIESEL LOCO - Safety Devices Safety devices are provided for the safety of the engine & loco. They are 1. Over Speed Trip Assembly (OSTA) - It is located on engine right side free end. It protects the engine from over speeding. On 8th notch the engine rpm is 1050. Due to any reason engine speed exceeds up to 1180 ± 20 rpm, OSTA

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DIESEL LOCO – Multiple Unit
January 5, 2021

 DIESEL LOCO - Multiple Unit  When two or more locomotive are coupled mechanically, electrically and pneumatically with each other and controlled by a single loco pilot, it is called multiple unit. Procedure:  1. Check and engine start the locos individually before making multiple unit. 2. Adjust all the pressure related to break

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DIESEL LOCO – Indication Lamp Circuit
January 5, 2021

DIESEL LOCO - Indication Lamp Circuit  This circuit is provided in the diesel loco to give warning/indication to loco pilot in case of any failure in various system/circuit , a LED (Light emitting diode) indication panel is provided on both control stand and control panel having following indication lamps

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DIESEL LOCO – Dynamic Braking
January 5, 2021

DIESEL LOCO - Dynamic Braking   It is an electrical brake, used only when loco is in motion. During dynamic braking, traction motor works as generator, hence retardation torque is developed on axle which opposes the movement of wheel and speed of loco is reduced.  Advantages of dynamic braking 1. No wear and tear in brake block and

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DIESEL LOCO – Transition Combination
January 5, 2021

Transition Combination   Transition Combination of traction motors are changed automatically on predetermined speed of Loco is called Transition. It is required to increase traction motor speed so that Loco speed can be increased. Back EMF of traction motor restrict Loco speed even on eighth notch. To increase speed Back EMF is controlled

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