what is the difference between LPF and UPF wattmeter and
where it is used.
Answer Posted / potnur hemarao
Lpf is used in power measuring in high inductive circuit and upf is used in power measuring in resistance circuit which power factor ranges 0.5 to unity
| Is This Answer Correct ? | 44 Yes | 8 No |
Post New Answer View All Answers
What is the Diff. btw Manule Pull Station & Manule Abort Station Switches used in FM200 System??
what is the purpose of bypass mode in energy lighting transformer?
how to measure dc earth leakage current?
when we decide to use soft starter drive or vfd drive in mcc to operate apump?
what is v/f control in VFD?
What are the advantages of vscf wind electrical system?
At what speed 1 HP motor can run an electric car of weighing 400 kg?
Can XLPE/SWB/PVC (P3) 7C X 2.5mm2 be replaced by Can XLPE/SWB/PVC (P2) 7C X 2.5mm2??? P3 vs P2
Hi all I had applied for the RRB test in the ELECRICAL category. I would be pleased if any of you can sent me previous year question papers. Please forward the question papers to varshashahi@yahoo.com Thanks and regards Varsha
condition Autotrip facia come on control panel of electrical transmission line?
HOW TO REDUCE POWER PLANT AUXILIARY POWER CONSUMPTION?
we all know voltage is a force(emf), and the force always devides if 2 or more than2 loads are there but why does the voltage remains same is parallel, it must devide na ???
What is difference between unity power factor wattmeter and upper power factor wattmeter? In short circuit test of transformer the wattmeter used is unity power factor type or upper power factor type wattmeter?
Why can't we take NO LOAD TRIAL of motors having V1 mounting??
What is the function of attenuator in cro?