Doble Power Factor Test set
Doble Power Factor Test set
(OP)
What are the applications of this instrument besides transformers( power and instrument.Is it of any help on Medium voltage ( 1kV-52kV)equipment.In what way?
Thanks to everyone in advance for thier inputs.
Thanks to everyone in advance for thier inputs.






RE: Doble Power Factor Test set
RE: Doble Power Factor Test set
Also limited tests on oil-filled capacitors.
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RE: Doble Power Factor Test set
Practically anything with insulation can be tested. Basically, the PF testing sets up the insulation under test as a dielectric between two conductors, just like a capacitor. Losses through the insulation are measured in watts, which is compared to total (VA) power impressed on the equipment during the test, to calculate the PF. Typically, for good insulation, the ratio between watts loss and total VA (a major component of which is the reactive power used create the electric field in the dielectric) will result in a very low PF value.
RE: Doble Power Factor Test set
http://www.usbr.gov/power/data/fist/fist3_18/vol3-18.pdf
for Doble Testing on capacitors
RE: Doble Power Factor Test set
Thanks for your inputs. To measure the insulation of a circuit breaker for example,we can use AC power frequency hipot test.Does it imply that for new equipment we can use AC Power frequency test in case of Circuit breaker and PF for old equipment.Is PF test the best measure of insulation.
Is it required in the industry(utility or oil and gas)or specified anywhere in IEC to carry out this test specially on MV circuitbreaker and associated bushings.
RE: Doble Power Factor Test set
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RE: Doble Power Factor Test set
RE: Doble Power Factor Test set