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A transformer substation comprises of transformation equipment- the Transformers, the accessories for the connection of the transformers to the HT Lines (Primary Input)- usually concrete poles/steel towers, insulators etc; normally two or more transformers are present to allow maintenance and faults without the supply being interrupted.
2. The substation protective equipment such as lightning Arresters, Line Fuses and Breakers, Isolators (as appropriate)
3. Effective Earthing system and equipment
4. The Distribution equipment such as feeder pillar units, busbars etc depending on the type of transformer substation.
What else can I help you with?
What is the main function of a current transformer in switchyard substation?
use of CT
What do you mean by package substation?
Prefabricated power distribution substation Its basically a whole 11kv substation but in one unit. It contains a transformer, ring main unit, fuse board and circuit breakers etc. It still uses as much space as a normal substation that houses a separate transformer, ring main unit etc but is easier to transport and is probably cheaper.
What is pocket substation?
the pocket substation have three major parts and they are transformer , ring main unit (RMU) and low voltage distribution bored (LVDB).
What is the capacity of power transformer for 132kva substation?
A 132 kV substation is normally called a grid substation. It would normally use two or more 132/33 kV transformers rated at 90 MVA, or two or more 132/11 kV transformers rated at 30 MVA.
What is function of CVT in Substation?
Capacitive voltage transformer (CVT) which is having special properties & used for protection & metering purpose.
Why the capacitive voltage transformer and voltage transformer both are used in a substation?
three phases
Type of transformers used in gas insulated substation?
Current transformer and voltage transformer . This transformers are actually measuring instruments which measures the quantity of current and voltage coming out of the substation.
What is the main function of a current transformer in switchyard substation?
use of CT
What do you mean by package substation?
Prefabricated power distribution substation Its basically a whole 11kv substation but in one unit. It contains a transformer, ring main unit, fuse board and circuit breakers etc. It still uses as much space as a normal substation that houses a separate transformer, ring main unit etc but is easier to transport and is probably cheaper.
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.
What is pocket substation?
the pocket substation have three major parts and they are transformer , ring main unit (RMU) and low voltage distribution bored (LVDB).
What do you mean by packages?
Prefabricated power distribution substation Its basically a whole 11kv substation but in one unit. It contains a transformer, ring main unit, fuse board and circuit breakers etc. It still uses as much space as a normal substation that houses a separate transformer, ring main unit etc but is easier to transport and is probably cheaper.
What components compose the excitation current of transformer how the are modeled in the transformer's equivalent circuit?
Excitation current Io = Iw + Iu
Why used transformer in subststion?
The substation is there to convert a high voltage to a lower voltage for electricity supply. Transformers are needed to do this.
What is the capacity of power transformer for 132kva substation?
A 132 kV substation is normally called a grid substation. It would normally use two or more 132/33 kV transformers rated at 90 MVA, or two or more 132/11 kV transformers rated at 30 MVA.
What is function of CVT in Substation?
Capacitive voltage transformer (CVT) which is having special properties & used for protection & metering purpose.
Why would you use a three phase transformer in place of a single phase transformer?
the necesscity of two three phase transformers operating in parallel are as follows...if the one transformer fails to give supply,then another transformer can be used in parallel and hance,continuity of supply can be maintained.one transformer can be easily take out from the supply for repair & maintanance.if the load on the substation increases beyond the rated values of transformer, then another transformer can be used to share rhe load of the substation.
