Search results for query: *

Thanks for all the replies. Actually we want to procure oil to be kept on site for topping up purposes. Before placing order for any oil which tests we can run oils in our two transformers to determine which oil we should purchase that is miscible with oils in our transformers and in which...

Hello We have two types of tranformers from China. One is 150MVA and the other one is 10MVA. We are not sure of the type of oil used in these transformers. Are there any miscibility tests that we can do before buying oil from local market? What precautions need to be taken? Which standards...

Is there any technology which can be used to survey an open land to ascertain if there are any cable underneath it? If there is any, is it cheap and easily available? These cables may be live or dead.

The following incidence has happened: It was reproted that few split airconditioners (single phase) and some other (single phase) connected load got their power supply modules and control cards burnt. These loads were fed from a three phase supply (3 phase + Neutral). The items that burnt...

No, this is not the first motor to start. Actually I am to calculate a generator required for one Power Station's black start. This is the biggest motor that is started, in the sequence, in the middle. Rest are much smaller motors compared to this one. The motors will not be started and...

Thankyou for this informative discussion Coming back to my basic question, can Waross (or somebody!!) illustrates how to compute the starting kVA requirement for a 6800 HP motor with the motor data above? What should be the starting kVA if there two motors, one 6800HP and the other 3800HP...

Hello everyone I have to estimate a generator size for motors whichv are of two differnent operating voltages - 380V and 6.6kV. 380V motors range from 1HP to 332 HP. 6.6kV motors range from 350 HP to 6800 HP. The name plates of most motors have gone vague. Moreover, these motors are...