WDG-3A - ट्रेन डायनामिक्स (Train Dynamics)

Train Dynamics

Knowledge of different forces which were developed on loco and load during train working and train handling is called train dynamics. 

Importance-

• It reduce train parting cases

• It reduce train stalling cases

• It reduce wear tear of mechanical parts

WDG-3A - COOLING WATER SYSTEM (Eng / Hindi)

COOLING WATER SYSTEM

The purpose of cooling water system is to cool engine equipment as well as engine block, inlet air, lube oil and TSC. 

Description - Chemical treated water is filled in this system to avoid corrosion, scaling forming and leakages will visible easily. 

On WDG3A loco pressurized water cooling system is provided. Centrifugal water pump is provided on left side free end of the engine, which gets drive from extension shaft no. 1 gear. System capacity is 1210 liters. Filling cap provided on expansion tank No.1.

WDG-3A - Modifications - Digital Water Level Indicator (Eng / Hindi)

 Modifications 

Digital Water Level Indicator 

It is provided in loco pilot cab, its sensor is fitted in expansion tank no. 1, it shows water level in the tank. On this indicator colour indication lamp are provided 

1. Green (full) 

2. Yellow (half) (danger below 50 %) 

3. Red (danger below 20%) 

WDG-3A - AIR INTAKE SYSTEM (एयर इन्टेक सिस्टम )

AIR INTAKE SYSTEM 

Supercharging – The process of increase air pressure more than atmospheric pressure and deliver in cylinder for fuel combustion is called supercharging. 

It increases efficiency of the engine up to 50 % in this type of engine fuel burn with atmospheric air having pressure. In diesel loco Turbo Super Charger is provided for supercharging. Turbo Super Charger – TSC is provided at free end, above after cooler. It works with the help of exhaust gasses. TSC having four casing

WDG-3A - (5. FUEL OIL SYSTEM (फ्यूल आयल सिस्टम)

FUEL OIL SYSTEM

The purpose of fuel oil system is to suck the fuel oil from the tank, filter it and supply to cylinder with adequate pressure and quantity at appropriate time. 

Description: A detachable fuel oil tank is provided in between two bogies of under truck. Its capacity is 6000 liters. Fuel used in this system is HSD (High Speed Diesel). Two oil filling caps are provided on both sides of the loco. Two vent pipes are provided on tank to evacuate the gasses. One drain plug is provided at bottom of the tank. There are two glass tubes with gauge on both side of loco to check fuel oil balance in the tank, gauge having marking from 600 to 6000 liters, each dot shows 25 liters. Minimum fuel oil level should be 1000 liters.

WDG-3A - HEAT ENGINE (हीट इंजिन)

HEAT ENGINE 

Heat engine - Heat engine is the machine which converts heat energy into mechanical energy. Heat engine are of two types. 

a. External combustion engine - In External combustion engine fuel is burnt or ignited outside the engine cylinder. So it is called as external combustion engine e.g. Steam engine. 

b. Internal combustion engine - In internal combustion engine fuel is burnt or ignited inside the engine cylinder so it is called internal combustion engine e.g. Petrol engine, diesel engine.