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A 'bushing' is a tubular insulator used to insulate a conductor that passes, for example, from the inside of a transformer or circuit breaker to the outside, enabling the internal components to be connected to external supply lines.
High-voltage (or 'high tension') bushings have thicker walls and are longer than low-voltage bushings, as they have to withstand higher voltages.
Wiki User
∙ 10y ago
Wiki User
∙ 9y agoAn HT line is a high tension line able to accommodate more than 500 volts. An LT line is a low tension line able to accommodate voltages at or below 450 volts.
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Why Vacuum circuit breaker is using HT and why Air circuit breaker is using in LT?
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
What is the difference between HT and LT line?
ht cable that means voltage level is high , it is obvious that power is going to remain same ,so if voltage rises ,current has to be lowered .since current level is less in ht cable therefore size (dia) is less compared to l.t cable , (p=v.i),lt cable current rating is more and voltage rating is less
What is the benefit of using HT Motors instead of LT?
to reduce Current and Coast
Can you use HT cable in place of Lt cable?
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
Can there be a current with no voltage?
No, There can't Be current without voltage
What is the main difference between HT and LT Lines?
It's the voltage: HT high voltage LT low voltage Tension = voltage (French?)
What is a transformer and its functions?
Voltage transformer or potential Transformers are used in conjunction with Current transformers for metering and protection purpose in HT and LT power system.
Why Vacuum circuit breaker is using HT and why Air circuit breaker is using in LT?
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
What is the difference between HT and LT line?
ht cable that means voltage level is high , it is obvious that power is going to remain same ,so if voltage rises ,current has to be lowered .since current level is less in ht cable therefore size (dia) is less compared to l.t cable , (p=v.i),lt cable current rating is more and voltage rating is less
Why the HT and LT voltage in the multiple of 11?
because our system form factor is 1.1
What is the benefit of using HT Motors instead of LT?
to reduce Current and Coast
Why voltage drop is negligible in ht side?
Because the current is smal , the votage > current x ressistance willbe small and therefore will be only a smal percentage of the ht.
What is the full form of LT and HT motor?
LT motor abbrevation
What are different Testing steps of HT and LT panel?
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.
What is difference between lt and ht pannel?
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
How can you tell Volvo C70 LT or HT?
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.
Why consumer wants connect to high voltage?
that main resign is high voltage is voltage value is high that same time current value is very low. easy to transmission to long distance consumer(HT required consumer) end we have not voltage loss and current also and conductor cost is reduced that is conductor thickness low ,so current level is low
