Key Diagram Of Substation

The key diagram of substation can be explained as under.

Key diagram of substation. Such an arrangement of two incoming lines is called a double circuit. Key diagram 11kv 400v indoor substation. There are two 66 kv incoming lines marked incoming 1 and incoming 2 connected to the bus bars. Single line diagram 33kv 11kv substation this is the easy way to understand the working of substation.

Substations transform voltage from high to low or the reverse or perform any of several other important functions. Posted on november 14 2011 by k10blogger. The main function of the substation is to collect the energy transmitted at high voltage from the generating station and then reduce the voltage to an appropriate value for local distribution and gives facilities for switching. This step up dramatically reduces the number of export circuits subsea cables between the offshore substation and the shore.

Switch consists of isolators connected in each phase of the 3 phase line. Seven design diagrams that every hv substation engineer must understand eep main wiring diagram scientific what is electrical definition single line site selection circuit globe layout and uses of substations connection i simulation drawings fundamentals transmission distribution key 11kv 400v indoor 66 11 kv 0 4 seven design diagrams that every hv substation engineer must understand eep. Key diagram 11kv 400v i the 3 phase 3 wire 11 kv line is tapped and brought to the gang operating switch installed near the sub station. Trapped in all other positions.

Between the generating station and consumer electric power may flow through several substations at different voltage levels. A substation is a part of an electrical generation transmission and distribution system. Single line diagram of 11kv substation substation provides the energy supply for the local area in which the line is located. Power transformers are used generation and transmission network for stepping up the voltage at generating station and stepping down the voltage for distribution.

Key exchange box wl1 wl2 diagram of ais interlocking example n wl1 m wl2 key released in open position. The key steps in the substation designing include switching system planning and placing of equipment selection of components as well as ordering support of engineers structural design the design of electrical layout protection of relay and major apparatus ratings. The electrical substation design is a complex method with full of engineer planning. Some of the standard symbols used to represent substation components are given in table below.

25 10 shows the key diagram of a typical 66 11 kv sub station. Offshore substations typically serve to step up the voltage from the site distribution voltage 30 to 36 kv to a higher voltage say 100 to 220 kv which will usually be the connection voltage.