Questions tagged [leakage]
6 questions
2
votes
1 answer
Inverter causing RCD to trip
I have an offgrid inverter/charger - an MPPSolar PIP4048MS (4000W inverter, 48V system). By and large it has worked well for 7 years.
Recently I bought an MPPSolar PIP5048MS (5000W inverter, 48V system) as a replacement.
However, it keeps on…
user1273784
- 21
- 1
2
votes
2 answers
Centre-tapped-secondary transformer's primary leakage
I hope the title is explanatory enough.
The following is the practical model of a transformer having a centre-tapped secondary (eddy and hysteresis losses, and parasitic caps are omitted):
Img src: Me
If I were to find the leakage of the primary…
Rohat Kılıç
- 26,954
- 3
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- 67
1
vote
1 answer
Unwanted PWM signal picked up in relays
Test setup: I am looking at this relay G5V-2-DC12. The test is simple. I power it up with 12V and connect a PWM signal (0V-5V 125kHz) to the common pin. I probe at the NO pin of the relay, and I expect to get exactly the same PWM signal back when…
Alex
- 115
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1
vote
1 answer
ATmega328P 4-button turn on, auto power off using transistor
I'm trying to create a basic 4-button battery powered remote. The logic behind it is that when one of the buttons is pushed it pulls the base of the PNP low thus turning on power to the circuit. The Arduino then takes over holding the base/gate down…
Gibran Zawahra
- 13
- 5
0
votes
0 answers
Right transimpedence amplifier choice for input range
I have a device that produces a ±30 nA signal and I'd like to measure this to a 0.1 nA precision.
Since the currents are so low and I don't have much time to make mistakes, I am planning to use a TIA embedded in an evaluation board.
Will this do the…
JoVi
- 1
0
votes
2 answers
Earth Leakage Breaker Trips .. Where is the problem?
I am trying to install a UPS in my home .. diagram of the circuit attached. UPS is in first floor. Both floors have separate main circuit breakers .. Ground floor has Earth leakage breaker while First has MCB 63Amp. UPS is powering ground floor and…
O Ishtiaq
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