Ht Yard Single Line Diagram
11kv 415v over head line s specification and installation rec.
Ht yard single line diagram. Autocad electrical tutorial drawing class 01 how to drawing a single line diagram please hit that like button share this video. 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. Drawing designing of high tension yard ht yard. Prepare specification for motors clean room light fittings cables lv hv panels push button station socket outlets substation equipments.
Low tension lt lines have low voltage less than 1kv and high current distribution eg 230v 440v the power supplying to our household applications are at lt. Switch yard is the place where the actual equipment are working properly. Single line diagram sld of electrical panels earthing. Single line diagram of 11kv substation substation provides the energy supply for the local area in which the line is located.
Single line diagram for 33 kv switching substation. Figure 1 single line diagram of transmission and distribution network. This will be applicable to the effectively earthed 11 kv systems co efficient of earth not exceeding 80 percent as per is. Substations transform voltage from high to low or the reverse or perform any of several other important functions.
A line to earth b across isolating gap kv p for 170kvp 195kv p 5 one minute power frequency withstand value dry wet kv rms kv rms 70 80 6 system frequency hz 50 7 variation in frequency 8 continuous current rating 800a 9 symmetrical short circuit current ka 25 10 duration of short circuit fault current second 3. The rated voltage of lightning arresters shall be 9 kv rms. In figure 1 c s. Today i will show you how to draw a single lin.
Cable specification cable tray layout. 4004 with all the transformer. Voltage rating for la. It is used to transmit power at very small distances and uses thicker conductors.
Central station where power is generated by 3 phase alternators. 11kv lightning arrester is. All controlling such as line current each feeder line and phase voltage for each feeder are measured by many low tension lt panel and high tension panel ht.