What is OLTC in a transformer, specify its fuction.
Answers were Sorted based on User's Feedback
Answer / imran
tap adjustments change voltage levels hence they provide
indirect reactive power control
Is This Answer Correct ? | 0 Yes | 3 No |
Answer / rajneesh upadhyay
OLTC MEANS ON LOAD TAP CHANGING TRANSFORMER
THERE IS ANOTHER TERM OCTC MEANS OFF CIRCUIT TAP CHANGING
TRANSFORMER
OLTC IS IS MORE USEFUL THAN OCTC
IT IS MAINLY USE TO CONTROL VOLTAGE DU TO REACTIVE POWER
THERE IS MECHANICAL DRIVER WHICH CHANGE NO OF TURN IN
SECONDARY AND IT IS AUTOMATIC CONTROL
if u dont agree please contact 7398114807 or inform
rajneesh.gca.mmmec@gmail.com
Is This Answer Correct ? | 1 Yes | 4 No |
Answer / om
Iam Agree With Answer But How Many Sort OF they Are Means
its IS Manuually Opreated Other Type plz Response
Is This Answer Correct ? | 5 Yes | 29 No |
Answer / mahesh sali
The function Of OLTC i.e. onload tap changer is to maintain
the constant voltage at H.v side i.e. secondary of
transfomer ,by changing his taps position , we can
maontain the voltage, Where as most of transformer having
on load tap changer control panel , with help of panel we
can change taps by local / remote mode
Is This Answer Correct ? | 10 Yes | 34 No |
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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?
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