Why is use the triangle system in high voltage cables
exterior plastic tape
for high voltage more than 11 KV and low current we can use XLPE cable.
Need a voltage to answer this question.
It is mandatory to use a larger wire size to overcome voltage drop at the load.
Transformers are used to convert electricity from high voltage to low voltage and from low voltage to high voltage.
Sure, as long as you feed them reliable power. Low voltage means they'll need high current to do the job, so you have to use heavy cable and good connections. If you skimp on the power hookup between the battery/generator and the pump ... using cable that's too light or dirty connections, you lose voltage in the cable, and the pump has a hard time doing its job on what you're feeding it.
Sure, as long as it's rated for that voltage.
the inductive load which is generally use in high voltage transmission line known as transformer. the transformer transform the high voltage to low voltage.
For appliances that need a lot of power, the advantage of a higher voltage is that less current is needed, because power = voltage x current. That means that the cable doesn't need to be so thick. It also means that for a given percentage of voltage drop in the cable, the allowable volt-drop in the cable is higher when the supply voltage is higher. This also allows the use of a thinner cable especially when the cable is 100 ft long or more.
to calculate the cable size of a run of 30 meters long you first will have to know the current of the appliance use the voltage drop formula V d = (mVxIxL)/1000 once the voltage drop is less than 2.5% of the nominal voltage, the cable should be upsize.
A sheath voltage limiter is an arrester that is used to clamp the voltage induced on the sheath of an underground high or medium voltage cable during a fault on the system. It is common practice when applying underground cable to only ground the cable sheath at one end of the cable, and leave the other end open. Leaving one ungrounded reduces circulating currents and losses during steady state operations. IEEE standard 575-1988 indicates that typically distribution arresters can be used for this function. IEC Application guide 60099-5 soon to be published offers a formula to use to determine the voltage rating of the arrester, but does not offer any guidance regarding the energy handling rating.
The voltage drop on a 1.5 mm cable run of 1.5 kilometers will depend on factors such as the current flowing through the cable, the material of the cable, and the temperature. Typically, to calculate voltage drop, you can use the formula: Voltage drop = (2 x current x length x resistance) / cross-sectional area.