What is difference between substation and transformer?

Answer 1

switching station is intermediate station between two other substations or between substation at load end and generating station. at switching station incoming power line and out going powerlines have same level of voltage it means there is no transformer to step down the voltage to connect the load. switching stations are created just for purpose of controlling important parameters in power system and control of voltage rise due to capacitive effect or voltage drop due to reactive effect or both .

Answer 2

AnswerIt is a large encased group of metal plates about the size of a small house with 2 sets of insulated copper wires wrapped around the plates -an input and output - to convert a very high supply line voltage - maybe 44 thousand volts to a lower voltage of 2200 volts that runs down the power line poles in your neighborhood. Look at your street's power poles and you will see a mini substation that converts he 2200 volt to 220 volts and may supply several homes.

Actually a substation transformer for a distribution substation will reduce the incoming voltage from 115,000 volts or 69,000 volts to a lower voltage closer to 7200 volts that runs down the power poles in your neighborhood. At your house there will be a small transformer that reduces the voltage from 7200 volts to 240 volts to meet the needs in your home.

Actually both are wrong !!

Answer 3

The substation is the point in the T&D system at which the generated voltage is either stepped up for transmission or stepped down for distribution. This is accomplished by a large power transformer within the substation. The lower distributrion voltage is carried from the substation on feeder circuits that eventually make their way to the smaller pole-mounted or pad-mounted Transformers that we see in our neighborhoods. These transformers further step down the distribution voltage (normally 12kv) to the useable 240/120 volts that we use in our homes.

Answer 4

In my industry (Electrical Power Generation) this is known as a electrical circuit protection (device)circuit breaker, but it is not located at the Power Station but remotely in another location maybe inside a sub station building maybe its outside in the sub-station switch yard. These circuit breakers are automatic in operation (tripping open for circuit protection)) but maybe closed (if electrically safe to do so) remotely at a control centre/control room, some actually will automatically try to close a number of times and if the fault is cleared they will stay closed if the fault still exists they will then remain open and have to be reset once the fault is rectified. Hope this helps.

Answer 5

A transformer is an electrical machine which either steps up, or steps down, voltage. A substation is a location where transformation and/or switching takes place.

In its simplest form, a substation can be a pole- or pad-mounted transformer, together with its protective equipment (hv and lv fuses). In its most complex form, a substation can be a large fenced yard, containing several transformers, switchgear, busbar systems, and a building housing switchgear, busbar systems, and complex protective systems.

Substations do not normally contain generating plant (other, perhaps, than a standby generator).

Answer 6

Power transformers are used in electricity transmission systems to either step up, or to step down, system voltages. They step up the voltage produced by the alternators in the power station to the very high levels necessary for transmission, then gradually step down the transmission voltages at substations located in and around load areas (e.g. near cities, etc.).

Answer 7

The extra high voltage transformer receives high voltage electricity from the power plant. The transformer reduces the high voltage into a less voltage and distributes it to several power lines.

Answer 8

to put it Simple,

Unit Substation is The Distribution Transformer Substation as you know it

Package Substation Is used for Weather Proof Housing