Answer Posted / naveen gupta
The illumination of Tube is due to flow of electrons between its terminals, so as soon as you switch off supply electrons at one terminal needs a little time to be back to their original energy state. Thats why it glows for some time
| Is This Answer Correct ? | 4 Yes | 4 No |
Post New Answer View All Answers
Dear all, I just want to ask an expert on this forum for some insights. For the magnetic balance test, when applied voltage on a Delta-Star transformer e.g. Dyn11, the following relationships apply for HV side: 1. H1-H2 = H2-H3 H3-H1 2. H2-H3 = H3-H1 H1-H2 3. H3-H1 = H1-H2 H2-H3 For the LV side also: 4. X1-X0 = X2-X0 X3-X0 5. X2-X0 = X3-X0 X1-X0 6. X3-X0 = X1-X0 X2-X0 Is there a similar pattern for Y-d, Y-Y, D-d? And how about Y-z, D-z, Z-y transformers? I've tested a YNzn5 transformer and for LV side I don't see the pattern. In this particular case I got for LV side the following (see values below): H1-H0 H2-H0 H3-H0 X0-X1 X0-X2 X0-X3 128.0 119.9 7.2 29.2 13.3 15.8 70.7 128.4 59.2 23.4 22.0 3.6 7.2 120.1 128.1 13.4 29.3 15.8 What is the relationship here for LV? For row 1 I see the relationship, for row 3 I also see but it's shifted, but for row 2 I don't see such relationship. Any suggestions, answers, someone?
Different types of relay fault which phase sequence??
why should small green grass ans small plant should not be there inside the transformer Yard in the factories
new 90kw motor installed so how I purchased cable ,fuse,etc please give me technic for cable selected why always capacitor delta connection
I have experienced electrical maintenance HT ,but I completed be ECE ....can I apply c license or not ???? Pls help me friend s...
How out of step protection relay works?
what is the main difference between power devices and signal devices
During Testing of Maintenance Free Earthing, How deep should be the Spikes of Earth Test Meter should be inserted in the soil(one spike is 15 Meter & Other spike is 30 Mtrs away from the Main Earth Electrode. Because, recently, we observed that when spike is inserted 3-4 Inch in the earth- results are better, If spike is inserted 1 feet deep than results are increasing.
How to select the proper VSD to operate high inertial load
HOW WORK HEAT PLATE EXCHANGER
HOW TO CALCULATE EARTHING SIZING?
what is the electrical?
what is the minimum requirement gigaohms for the insulation test using 5kv in 300mm xlpe cable
Why the efficiency of a three-phase induction is the motor is less than that of a three-phase transformer?
when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??
