Table of Contents
What should the voltage be between hot and ground?
You have to measure neutral-ground or hot-ground. If neutral-ground voltage is about 120 V and hot-ground is a few volts or less, then hot and neutral have been reversed. Under load conditions, there should be some neutral-ground voltage – 2 V or a little bit less is pretty typical.
What is the voltage between live and earth?
Live, neutral and earth mains wires
Wires | Voltage between them (V) |
---|---|
Live and neutral | 230 |
Live and earth | 230 |
Neutral and earth | 0 |
What is phase ground voltage?
480V
For ungrounded systems, the greatest voltage between the given conductor and any other circuit conductor is also the phase-to-ground voltage. On a 480V, three-phase, 3-wire, ungrounded delta system, the phase-to-phase voltage is 480V. Based on the definition, this is also the phase-to-ground voltage for this system.
What is the voltage between the Earth and the phase?
Typically, the voltage between earth and phase/live is 230 volt. The voltage between neutral and phase varies from 220–230. The voltage between neutral and earth is 0 under ideal conditions. In practical conditions there may exist a very small potential difference.
What is the effect of current on voltage between Earth and neutral?
As full current flows in this wire, so effect is more. Use thick wire for less voltage between neutral and earth. This voltage will change at different point of neutral wire for the same load current as length of the neutral wire will be different at different place. Generally voltage between neutral and earth will be within few volts.
How many volts should there be between Earth and neutral?
This video states that there should be 0-0.5V between earth and neutral A rule-of-thumb used by many in the industry is that Neutral to ground voltage of 2V or less at the receptacle is okay, while a few volts or more indicates overloading; 5V is seen as the upper limit.
What is the voltage on each leg of 3 phase?
Similarly, what is the voltage on each leg of 3 phase? The voltage between any one leg and ground will be 277 volts, and between any 2 hot wires will be 480 volts. 3 phase machinery runs off Delta voltage, which means you only run 3 hot wires and no neutral wire. If you mistakenly wire a 230 volt machine at 480, it will not run faster.