Appliances at home have designated voltage e.g. 220 V or 110 V. When the voltage is dropped, the appliances try to run at their designated power in kW as usual. To keep the power same, current is increased (P = VI). This increase in current can burn the most delicate part of the appliances if the low voltage is experienced persistently.
AnswerA drop in supply voltage results in a drop in the power of appliances. For fixed-resistance devices, a 10% drop in voltage results in approx, 18% drop in power.
Undervoltage
Low voltage is a relative term, as there is no 'level' at which a voltage is rated 'low'. Electrical safety codes define low voltage as circuits that do not require the same protections necessary at higher voltages.
the hot wire carries the electrical voltage
Hi, The main difference is Fuel consumption. High current genertors always consumes much fuel because the load on the engine will be high. The high voltage low current generators doesn't need much fuel to run. You can understand this by comparing 1 kva and 5 kva single phase generators. For both generators voltage will be same (230v) But output current differs. So the fuel consumption also differs. But you get a high current source. Low voltage high current generators can be used for welding kind of stuffs which needs high current to do the job. If you have step down transformer then you can save the fuel.
Electrical engineering is low voltage, logic circuits, communications etc. Power engineering is electrical transmission and the like.You want EE.
>1000V rms ACAnswerAccording to BS 7671:2008 Requirements for Electrical Installations, 'high voltage' is formally defined as that 'normally exceeding low voltage', where 'low voltage' is defined as "...(nominal voltages) exceeding extra-low voltage but not exceeding 1000 V a.c. (root mean square) or 1500 V d.c. between conductors, or 600 V a.c. (root mean square) or 900 V d.c. between conductors and earth".
Transformers are used to convert electricity from high voltage to low voltage and from low voltage to high voltage.
Low voltage DC currentit converts it to electrical energy. :}Comment - low voltage DC current is electrical energy
Low voltage is a relative term, as there is no 'level' at which a voltage is rated 'low'. Electrical safety codes define low voltage as circuits that do not require the same protections necessary at higher voltages.
It's what happens when a battery is about to expire.
Voltage remains constant; current increases.
Yes, it is.
In a water system, the "voltage" is the water pressure, the flow rate is the "current", and the pipe size is the "resistance". Low-voltage electrical current is equivalent to low-pressure water.
Electrical maintenance is used for maintenance of electrical equipment. Electrical Preventive Maintenance is been used for replacement of Low voltage distribution products such as ACB's & MCCB's Contactors and Relays.
The term low potential or low voltage is defined by the electrical code book. The break over from low voltage to high voltage is 750 volts. The reason for this division is the procedures are completely different the way the wiring id done.
Transformers transform low vvoltages to hivh and vice versa. This is important in transmitting electrical power form the high voltage power plant to the low voltage home voltage. Using high voltage transmission reduces transmission power losses, I2R.
miniature circuit breaker or MCB in low voltage electrical network instead of fuse.
Because wires are not perfect conductors, energy is released as heat. This is why electricity is transmitted at very high voltage and low current to reduce energy loss.