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12y ago

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What does gone to the ground mean?

It's when people have it.


What is a disconnect installation fault?

I have never heard a fault type referred to as a "disconnect installation fault". In general there are a few types of faults - phase to ground or ground faults, phase to phase, phase to phase to ground, three phase, and three phase to ground. I'm guessing what you're referring to is a fault on a disconnect switch. Disconnects are used to isolate equipment. When a disconnect faults, it usually faults to ground.


You are measuring 480 volt from phase to phase and 280 volt phase to ground but one leg measures 440 volt phase to ground why?

Check for a blown fuse in one of the phase legs.


In a 4 wire delta connected system what does the orange wire mean?

High or "wild" leg phase to ground.


Why do you have voltage to ground but not voltage phase to phase?

There is phase to phase voltage in 3 phase system.AnswerYou don't get voltage 'phase-to-phase'; it's 'line-to-line'!


What is the difference between a phase to ground connection and a grounded wye connection?

A 'grounded-wye' connection describes a wye-connected supply, whose star-point (or common point) is grounded. This is essential in order to ensure stable phase voltages. I'm not sure what you mean by a 'grounded-phase' connection; if you mean a 'grounded-line' connection, then this is a short-circuit to ground from a line conductor.


IF YOU HAVE A 277 volt circuit IN you go from PHASE 1 to ground what will your voltage be?

In a 277-volt circuit, if you measure the voltage from Phase 1 to ground, you should read approximately 277 volts. This is because 277 volts is typically the line-to-ground voltage in a three-phase system where the phase voltage is 480 volts. Therefore, when measuring from the phase conductor to ground, the voltage remains the same at 277 volts.


Is transmission voltage a phase to phase voltage or a phase to ground voltage?

Phase to Phase voltageCorrection to the above answer:There is no such thing as a 'phase-to-phase' or 'phase-to-ground' voltage. The correct terms are 'line-to-line' (or 'line voltage') and 'line-to-ground' (or 'phase voltage'). Transmission-line voltages are line-to-line (or 'line') voltages.


Phase to ground voltage?

There is such a thing, what is your question?


What is phase to ground fault?

A phase-to-ground fault is a type of electrical fault that occurs when one of the three phases of a three-phase power system comes into contact with the ground or a grounded surface. This can result in high fault currents flowing through the system, which may lead to damage to equipment and pose a safety hazard. Protection devices such as fuses or circuit breakers are used to detect and clear these faults to prevent damage and ensure safety.


What happens when any phase conected to ground?

You get a short circuit.


Why are the insulation resistance values higher for test between phase than between phase and ground?

When testing two cables there is twice the the amount of insulation, as opposed to one cable to ground.