Problems with test lights
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It’s a strange question. I checked on the platform and it says three-phase, three-wire system. Today I used a voltage tester to see if there was electricity present; two wires showed that there was electricity, but the third wire did not show any electricity. The voltage tester is working fine, and there is some electricity present in those two wires as well. What could be the reason?
It’s a strange question. I checked on the platform and it says three-phase, three-wire system. Today I used a voltage tester to see if there was electricity present; two wires showed that there was electricity, but the third wire did not show any electricity. The voltage tester is working fine, and there is some electricity present in those two wires as well. What could be the reason? It’s so strange; the test pen is fine and there’s no issue with the electricity either. . . I haven’t encountered it. . . .
Hehe! I’m a problem that can’t be solved! Experts, come on!
Please wait for good news; big brothers and sisters, keep it up!
Is the power supply on the platform connected through an isolation transformer, and is it a system with an ungrounded neutral point? If so, one of the phases without power has shorted to ground; that’s why the voltage tester shows no voltage. Since the neutral point is ungrounded, no short circuit occurs that would cause a trip.
By the way, I’d like to add that: if you use a multimeter to measure it. It’s obvious then; when one phase is grounded, the voltages of those two phases relative to ground must increase.
The phase that has no power must be short-circuited to ground; it cannot be detected using a voltage tester
Agree with what was said on floor 8! It’s possible that that phase is short-circuited; it’s best to use a multimeter to check it!
Test it with a multimeter! The electric pens made these days are all of poor quality! It’s best not to use a test pen under high pressure! Multimeter test!
First of all, why do you want to use a test pen to check it? Is there a problem? You should use a multimeter instead