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1)Why V cross Arm is used in transmission lines? 2)Why H cross Arm are not used in single poles?
1 7315hi i am aziz electrical associate engineer. i am faceing problem in acs800 vvvf drive.it is tripping wothout any alarm/fault.i cheaked all parameters and fault function of drive, all are correct as well as communication parameters.but still it is tripping (drive is tripping in running position not in starting)
1 3792Post New Electrical Engineering Questions
I don't understand why when we connect high voltage source in DC to electronic motor , we must add capacitor and resistor in parallel ? (I know that we use capacitor because we want to absorb the current that in the first second electronic motor in opposed with current course produce. ) what are the feature of Resistor and in such situation ?
How much voltage we need to apply in 33kv cable during hipot test of cable
What are the Formula of computing Back up Time of 500kVA UPS with 4 Battery Banks, each bank composed of 43 pcs of Batteries 12V150Ah. How to compute the Back up Time of UPS? We have also 3X500kVA UPS running in Parallel same composition as I write above.
what r the safety measures in UPS ? explain all?
Pl. give me checklist for installation & commissioning of machine tool.
in science exhibition how lamp can blink when you clap near the lamp ? thank you
why core is useful for a transformer ?and also in its operation ?
What is the unit of attenuation?
what is the calculation formula for motor starting torque,running torque, running torque.
What is the function of the circuit breaker failure relay?
how you taken aotitude test
Testing procedure of DG alternator stability test
You are of electrical field and you are going for software? Why
Why efficiency in thermal power plant is low?
Define non-touching loop.
