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Dielectric Strength of Vacuum is more than that of Air. In HT voltage is more than LT. So VCB is used in HT & ACB in LT. Rakesh Gaikwad
Frist putt of the main incomer HT side then Rack out the breaker and put the LOTO after that Discharge the cable Both side (HT/LT).
An LT panel is a device that receives power and distributes it to other devices and boards. An HT panel is the same thing except it is used for high tension cables.
The different testing steps of HT and LT panel include commissioning, sanctioning, erection and the CPP set. All this is done in the servicing of the transformers and the HT/LT control panels.
LT motor abbrevation
For LT cable 1. Use : Up to 690V 2. Insulation : PVC 3. Core(Neutral) : Yes 4. Insulation Grading : 1100 V For HT cable 1. Use : Above 690 2. Insulation : XLPE 3. Core(Neutral) : No 4. Insulation Grading : Above 3.3kV, 11KV..etc ( Please note that now 690 V using in VFD application with LV cable and 440 V for DOT motor starter) from Kunal Singh Dabi the_dabi@rediffmaill.com
lt pannel is a iow tensan pannel. lt pannel work is 240v and 440v. ht pannel is a high tensan pannel . ht pannel work is 11kv,33 kv ,66kv, 120kv
An LT cable is a low tension (or low voltage) cable.
It's the voltage: HT high voltage LT low voltage Tension = voltage (French?)
The 1999, 2000, 2001 C70 engines that are HT are the 2.4 L Engines. The LT engine is the 2.3 L but it produces more horsepower than the HT.
ht motor is to be fed with more than 415v like in kvolts. all the other operated below 415 volts are lt motors
to reduce Current and Coast