0
What else can I help you with?
What temperature would an hv transformer reach?
They're usually spec'd for 55 or 65 degrees C average temperature rise (so 55 or 65 C above ambient temp), but the hot spot can get significantly hotter, and is limited by the insulation class of the transformer. Class B is 130C, class S is 240C, so there's a big difference between insulation. Temperature is dependent upon loading of the transformer, and what cooling systems are engaged.
What is the length of time that a motor can safely run on starting and full load current?
It depends on the insulation provided in winding, motor can safely run on full load current. and over that it may burn but depends on cooling system of the motor. Motor can burn if insulation fails, failure of insulation depends on only the temperature rise.
What does temperature rise mean in hvac?
themperature of out door air plus temperature of return air [furanace]
What is the theory of converting electrical energy into heat energy?
Electricity does work (W =I2Rt) ) on a conductor, causing its internal energy (U) to rise. This rise in internal energy is accompanied by a rise in temperature, resulting in heat transfer (Q) from the conductor to the surroundings. It should be pointed out that the term 'heat energy' is no longer used -heat is simply energy transfer caused by a difference in temperature.
Why using semiconductor protection for HT cable?
In a HT cable there are 2 layers of semiconductor one on the conductor and second on the XLPE insulation. As we know semiconductor behaves as conductor when temperature rises. So when the HT cable is on load its conductor temperature rises due to this the semicon layer which is on conductor behaves like conductor and as a result overall cross section area is increased. now the second semicon layer which is over XLPE on temp rise behaves as conductor and used for dessipating heat out of conductor as the cable heat due to load.
What is IEC equivalent to UL 943?
Guide for the Specification of Permissible Temperature & Temperature Rise for
What temperature would an hv transformer reach?
They're usually spec'd for 55 or 65 degrees C average temperature rise (so 55 or 65 C above ambient temp), but the hot spot can get significantly hotter, and is limited by the insulation class of the transformer. Class B is 130C, class S is 240C, so there's a big difference between insulation. Temperature is dependent upon loading of the transformer, and what cooling systems are engaged.
How will insulation resistance change with rise in temperature?
Insulation resistance is temperature-sensitive. When temperature increases, insulation resistance decreases, and vice versa. A common rule of thumb is insulation resistance changes by a factor of two for each 10 DegrC change. So, to compare new readings with previous ones, you'll have to correct your readings to some base temperature. For example, suppose you measured 100 megohms with an insulation temperature of 30 DegrC. A corrected measurement at 20 DegrC would be 200 megohms (100 megohms times two).
When was The Rise of the Creative Class created?
The Rise of the Creative Class was created in 2002.
What is the length of time that a motor can safely run on starting and full load current?
It depends on the insulation provided in winding, motor can safely run on full load current. and over that it may burn but depends on cooling system of the motor. Motor can burn if insulation fails, failure of insulation depends on only the temperature rise.
What happens to the temperature in a house as the sun's radiant energy touches it?
The temperature in a house increases as the sun's radiant energy touches it because the warmth is absorbed by surfaces inside the house. This can lead to a rise in overall temperature if proper insulation is not in place to prevent heat gain.
How to overcome Condensation during hot steam mixing with cool air?
rise temperature, increase the insulation. Also, air does not own much mass. It will not condense the steam faster and much.
Does the temperature rise or drop in the exosphere?
rise
How would you explain the temperature rise in the water?
The temperature rise because of the gangnam dance
How is fever different from a simple rise in body temperature?
Fever is different from a simple rise in body temperature because a fever always results in a rise in body temperature but such a rise is not always because of a fever. A rise in body temperature could occur because of exercise or warm weather and not just because of a fever.
Why does your temperature gauge rise and lower only when you have the heat on?
Why does your temperature gauge rise and lower only when you have the heat on?
When temperature inside the freezer is -10 to defrost it the temperature was allowed to rise 14 what will be the temperature after thus rise?
4 degrees is the new temperature -10 + 14 = 4
