Dry Type Transformers are Self-Extinguishing And Fire Resistant

 Dry type transformers are self-extinguishing and fire resistant

Dry type transformers are self-extinguishing and fire resistant as construction materials used in the dry type transformer are aluminum, silica (quartz sand), epoxy resins which are very much flame-retardant and self-extinguishing materials.

What is meant by self-extinguishing

Self-extinguishing means

· Prevent the development of fire

· Interrupt or slow down combustion processes by removing any of the fire continuing factors such as -heat, oxygen, fuel, exo-thermic action.

In dry type transformer if the cause of fire is removed then the fire will be ceased by itself by continuously consuming the energy of fire. This is done by the construction materials of dry type transformer which are self-extinguishing and fire resistant itself. These materials are aluminium, silica (quartz sand), epoxy resins etc.

Aluminum, self-extinguishing and fire resistant

1, Low melting point aluminium

Melting point of Aluminum alloys are between 600 and 660 degrees Celsius. This is why when aluminum is exposed to fire environment it will begin to melt (not burn). Also as temperature passes the melting point it will not increase until the whole melt down is completed.

2. Higher Heat conductivity of Aluminum

Heat conductivity of Aluminum is almost four times greater than that of iron. Specific heat capacity of Aluminum is similar to iron. Reflectivity to thermal radiation of fire is 80 to 90% for aluminum and for iron it is 5 to 25%.

3.High heat dissipation rate of aluminium

With the exposure to fire, aluminum will dissipate large amount of heat quickly and at the same time it will absorb huge amount of thermal energy from the fire. These actions are self-extinguishing in nature.

Resin, Fire 🔥 Resistant 

The resin has fire resistance property with the following nature-

· High resistance to ignition of fire.

· Reduced smoke and fume emission.

· Reduced the rate of flame speed.

· Reduced the heat release.

Comments

Post a Comment

Popular posts from this blog

Electrical Electronics Communication Telecom Engineering Topics Explanation

Introduction to DC-TO-DC Converter  ||| Power Switching Devices Zones of Protection System And His Type  |||  There are six main causes of electric   |||   motor failures  |||  Top Electrical Engineering Interview Questions And Answers  |||  What Is Solar Panel  |||   How Does Solar Panel Work?  |||    What is Logical Circuit?  |||   What is Batter and Types of Battery?  |||   What is Current?   |||  What is Voltage?   |||  What Is Diode?     ||| Circuit Breakers and Rating Of CB  ||| Dry Type Transformers are Self-Extinguishing And Fire Resistant  |||  Kirchhoff's Laws  ||| Difference between AC and DC  ||| Define Amplitude, instantaneous value cycle, Time period, frequenc  ||| Common Causes of Electric Motor Failures   |||   All About Electric Motor  ||| Basic Concept Of Electrical Earthing and Groundin...
Read more

Electrical Transformers

 Electrical Transformers Principle of Electrical Transformers   Click To Read   Transformers Action       Transformers V.I Click To Read                         Click To Read   Transformers Magnetic Circuit                   Click To Read   Auto Transformer       Click To Read   Instrumental Transformer           Click To Read   Potential Transformers           Click To Read   Transformers Bush  Current Transformer       Click To Read                 Click To Read   Tap Transformers    Transformers Polarity       Click To Read                Click To Read   Single Phase Transformers Connections        ...
Read more

Electrical Engineering Top Interview Questions And Answers 50 t0 100

51: Explain the working principal of the circuit breaker? 52: In the motors starting purpose why the armature rheostats at maximum position while the field rheostat is kept in minimum position? 53: What is the significance of vector grouping in Power Transformers?   54: Advantages of vvvf drives over non vvvf drives for EOT cranes?   55: How can you start-up the 40w tube lite with 230v AC/DC without using any choke/Coil?   56: What is electric traction?   57: Why computer humming sound occurred in HT transmission line?   58: What's the one main difference between UPS & inverter ? And electrical engineering & electronics engineering?   59: What is meant by armature reaction?   60: What is Potential Transformer (PT)? 51: Explain the working principal of the circuit breaker?   52: In the motors starting purpose why the armature rheostats at maximum position while the field rheostat is kept in minimum position? 53: What is the significance o...
Read more