![]() ![]() The magnetic field produce by the coil with the fluctuating nature of the alternating current the magnetic field associated with the coil also fluctuate. Magnetic field is produce around it when current passes through it. Such a fluctuating magnetic field can easily be produce by a coil and alternating emf system. According to this principle a varying magnetic flux associated with loop will induce an electromotive force across it. The basic working principal of transformer is simple electromagnetic induction. In this way they help to achieve better transformer efficiency while transferring the power over longer distances. Transformer is capable of receiving ac power at one voltage it can be step up or step down voltage and deliver this voltage. ![]() Mesh voltage is the difference of voltage between the potential of the soil within the grid and metallic object connect with the grid.Įach transmission substation consists of the following key elements: Transformer: When a person experience difference in surface potential bridging a distance if 1m with the feet without contacting any other ground object. Touch voltage is the difference between the surface potential and ground potential rise at a point where the person is standing while at the same time having a hand in contact with a ground structure. Three types of the potential can be find inside the substation: Supervision and control can be done with the help of SCADA system.For example in Pakistan most substation are operated by the NTDCL. Someone has the ownership that will operate this system. Owned and operated by electrical utility or a large industrial commercial customer.According to the requirement of the customer whether they require high or low voltage. May have very voltage levels before it reaches the customer.Perform several important switching functions.Critical for generation, transmission and distribution system.Substation:Ī substation takes the energy from the transmission network and steps it down to a lower voltage level using a transformer. It is used to switch electrical energy around the transmission network, connecting the power stations to the cities and local centers. There are two main types on the transmitting network:Ī switching station has no transformer and only operates at a single voltage level. Normally distribution voltages are 11KV or 33Kv. We normally transmit the power through the distributing network using cables. We now step down the voltages using a transformer so that it can be used in industrial and residential customers. The 12000V produce in the power plant is step by the transformer which are 115Kv, 230KV and 400KV to minimize the losses on the network and increase the amount of power that can flow through it the power is then distributed over the transmission network using overhead lines and cables typical transmission voltages 115Kv, 230KV and 400KV. The voltage generated in the power station is about 12000V. Most of the electrical power received by the substation from: The behaviour of electricity does not always follow our intuition which means the challenges associated with the constructing, operating, and maintaining the power grids are often complicated and sometime unexpected. Generation is the first step of production of power which will be generated in various types of power station which uses different types of energy such as hydel, wind, thermal or nuclear energy. The simple answer is the power generating station also known as power plant usually some place far away. When we plug in an electric device it is easy not to even consider where the electricity actually comes from? Substation performs several functions between the generating station and consumer. The product is rated CAT IV and measures voltage up to 1,000 Volts.A substation is part of electrical generation, transmission and distribution system. The part/model numbers are written on the top of each unit above the brand name KLEIN TOOLS and date codes are printed on the bottom of the unit under the brand name. The meters have a yellow body housing with a tinted gray tip and have a black pocket clip/battery cap on the back. KIT, 3PC, Stripper/Cutter + NCVT1 Tester + RT210 GFCI Tester (Retail Clam Shell) KIT, 2PC, Pliers + NCVT1 Tester (Clam Shell) KIT, 3PC, Home Inspector Moisture Meter Kit, (Poly-Bag & UPC Label) ![]() KIT, 4PC, Residential Electrical Tool Kit (Poly-Bag & UPC Label) KIT, 3PC, Multimeter Test Kit (Retail Clam Shell) Non-Contact Voltage Tester (European Packaging) ![]() Non-Contact Voltage Tester (Asian Packaging) Non-Contact Voltage Tester with Sensormatic Tag The following model numbers are involved in the recall, all bearing date codes ending in H7. The product was also sold separately and in kits. This recall involves Klein Tools Non-Contact Voltage Testers with model numbers NCVT1 and date codes ending H7. ![]()
0 Comments
Leave a Reply. |