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What is the base mva of 33Kv?

750MVA to 1000MVA for 33kV and 350MVA for 11kV


Why neatural ground resistor using in 33kv transformer?

The function of a neutral earth resistor is to limit any fault current resulting from fault between a line conductor and earth.


What does a primary substation do?

Primary substation - when the transformer is HV/MV or MV/MV. e.g. substation designed for 132kV/33kV or 230kV/22kV or 33kV/11kV etc stepped down for MV distribution (mainly for utilities and heacy industries) Secondary substation - when the transformer is HV/LV or MV/LV. e.g. substation designed for 11kV/400V or 6.6kV/400V etc stepped down for LV distribution (mainly for residential, commercial) sometime referred to as a kiosk substation.


How the voltage regulation in 33kv line?

It does not depend on the line. The regulation is the percentage change in voltage caused by applying the full load current, and that depends on the transformer supplying the line. A value of 5% would be typical.


How do you calculate transformer primary voltage and secondary voltage when you used the tap changer in transformer?

Transformer LTC's are spec'd as being a certain percentage of the total - very often +/- 10%. So if you have a transformer with a primary of 100kV and a secondary of 30kV nominal with a lowside LTC, the LTC can adjust the lowside from 27kV - 33kV. Depending on the type of LTC, there may be different number of steps for this 20% range. Usually these are broken up evenly, so if you have 33 steps - up 16, down 16, and a nominal tap, each tap is 1/16th of 10 percent of nominal lowside voltage; in this case 187.5 volts.

Related Questions

Why is the rating of transformer is like 11kv 33kv 66kv?

Because the tranformer calculation for ratings is calculated with the formfactor which is 1.11 constant. Regards Mithin kudva


What is the base mva of 33Kv?

750MVA to 1000MVA for 33kV and 350MVA for 11kV


Why are 33kV VT's not tested for insulation resistance?

Is VT meant to be an acronym for Voltage Transformer?If so, then the answer may be that any transformer which has been designed to run at a very high voltage, such as 33 kilovolts (33,000 volts), must obviously be built using insulation for its wiring that is already well-tested - and therefore known -not to break down at its designed working voltage.The insulation will already have been tested - under safe laboratory conditions - to be certain it will withstand many times the transformer's designed working voltage. The test voltage could be as high as 330 kilovolts or more.So there is no point in rigging-up a further, very expensive, extra-high-voltage test facility to test such a 33kV transformer specifically for insulation quality in the the factory or manufacturing plant where such transformers are built.When the transformer has been built it is normally sufficient to ensure that it doesn't overheat when working at its rated power under a prolonged soak test - probably for as long as a week or more - before it is shipped to its final installation site.At the final installation site, in common with allnewly-installed high-voltage substation equipment, voltage transformers (known as 'potential transformers' in North America) are tested after installation, and before commissioning, using a hi-voltage ('Hi-Pot') test set.


Why neatural ground resistor using in 33kv transformer?

The function of a neutral earth resistor is to limit any fault current resulting from fault between a line conductor and earth.


For a 18mw generation at 11kv what shall be mva rating of the 1133kv generator transformer?

I think, you are talking about a 11/33KV Transformer and by mistyping same has become 1133KV. However, rating shall be on the basis of 18MW +Loading factor . A 25/31.5MVA rating shall take care of of all these.


What does a primary substation do?

Primary substation - when the transformer is HV/MV or MV/MV. e.g. substation designed for 132kV/33kV or 230kV/22kV or 33kV/11kV etc stepped down for MV distribution (mainly for utilities and heacy industries) Secondary substation - when the transformer is HV/LV or MV/LV. e.g. substation designed for 11kV/400V or 6.6kV/400V etc stepped down for LV distribution (mainly for residential, commercial) sometime referred to as a kiosk substation.


How the voltage regulation in 33kv line?

It does not depend on the line. The regulation is the percentage change in voltage caused by applying the full load current, and that depends on the transformer supplying the line. A value of 5% would be typical.


What is the function of transformer 33kv?

A '33-kV transformer' is a three-phase primary-distribution transformer, used in the UK's electricity system to step down the 33-kV primary-distribution voltage to the 11-kV secondary-distribution voltage -the lowest voltage used in the high-voltage distribution system. These transformers are categorised as 'power transformers', and are located in what are termed 'primary substations'.


What is the highest generating capacity in India?

33kv


What are the effects of being at end of 33KV transmission line?

The effects of being at the end of a 33KV transmission line will result in a higher voltage. This is due to variation in the perameters that dictate how the transmission is sent and received.


What is the Phase to phase clearance for 33KV sub station?

1.2 meter


How do you calculate transformer primary voltage and secondary voltage when you used the tap changer in transformer?

Transformer LTC's are spec'd as being a certain percentage of the total - very often +/- 10%. So if you have a transformer with a primary of 100kV and a secondary of 30kV nominal with a lowside LTC, the LTC can adjust the lowside from 27kV - 33kV. Depending on the type of LTC, there may be different number of steps for this 20% range. Usually these are broken up evenly, so if you have 33 steps - up 16, down 16, and a nominal tap, each tap is 1/16th of 10 percent of nominal lowside voltage; in this case 187.5 volts.