high induced voltage
high induced voltage
(OP)
what could cause high induced voltage on a 110v line?
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
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RE: high induced voltage
RE: high induced voltage
serves elevator controls. Thank you wbd.
RE: high induced voltage
It usually is something like half or less of the voltage in the close live wires and it goes away completely when you try to load it. If you use a modern DMM, you will read tens of volts. But if you use an old iron core meter, you will probably not read any voltage at all.
Simple test: Connect an incandescent lamp between wire and ground. Then measure. If you still have a voltage, it is NOT "induced" but real. Be careful.
Gunnar Englund
www.gke.org
RE: high induced voltage
That's why I still keep an old Simpson 260 meter around!!
RE: high induced voltage
Gunnar Englund
www.gke.org
RE: high induced voltage
ht
Voltage surges and sags, and voltage spikes to several Kv are not that unusual. Some of these are only in the microsecond range, but they can still be surprisingly frequent.
The nature of the overvoltage can vary quite a lot. Lightning striking transmission lines can be one cause, another can be high induced inductive voltages caused by sudden abrupt current changes in long transmission lines. These can be caused by very high fault currents that quickly clear. A violent event can travel for miles and disturb a wide area.
The entire power grid is a very big place, and there are little, and not so little dramas going on all the time.
RE: high induced voltage
Respectfully
RE: high induced voltage
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: high induced voltage
Bigbillnky,C.E.F.....(Chief Electrical Flunky)
RE: high induced voltage