You are an electrician working in an industrial plant. The company is constructing a maintenance shop located 225 feet from the main plant electrical system. You are to install a 400-ampere three-phase wire system in the new maintenance shop. The service is supplied by the existing plant service. The voltage is 480 volts and the voltage drop is to be kept at 3% or below at full load. The conductors are to be aluminum. What size conductors should be installed for the new service? Express your answer to the nearest standard wire size. (Note: Determine the wire size by calculating length, resistance, and voltage drop as opposed to using the National Electrical Code

Q: Under what circumstances the power transformer will act as a source of harmonic? Rated load contion…

A: The transformer operated in no load or lightly loaded condition it produces harmonics. Due to no…

Q: Whether Surge resistor 10 Ohms should include in calculation?

A: Surge resistor: It is a resistor which is inserted between the rectifier circuit and filter circuit…

Q: Six 1/0 aluminum conductors are to be run in a conduit. Each conductor has type THWN insulation's,…

A:

Q: A lightning rod is a pointed copper rod mounted on top of a building and welded to a heavy copper…

A: To explain the condition

Q: What is the circuit breaker,types and how it is work?

A: a circuit breaker is a mechanical device that is used to open any type of electrical contact or to…

Q: Which among these statements is false or incorrect? A. The bigger the value of the Breaking Stress,…

A: The sag for a conductor is calculated by the formula  Sag=wl28TT=Tensile strengthsafety factor And…

Q: Find the appropriate conductor size for a THHN copper wire with 75 deg Celsius temperature capacity…

A: Note: For THHN wire rated at 75 degree Celsius, National Electric Code table should be followed…

Q: When installing grounding electrode conductor at services, it's common to use a single large common…

A: Here we discuss about grounding/earthing related concept.

Q: The minimum size for copper branch conductors in a dwelling is

A: The minimum size for copper branch conductors in a dwelling is

Q: The short circuit test is used to measure the __________________________________ of the transformer.…

A: the short-circuit test of a transformer is used to determine copper losses in the transformer at…

Q: Several factors or conditions can cause conductors to overheat, but often overlooked is the…

A: The heating is the major concern in the conduction as the temperature increases then the resistance…

Q: dentify the test used to measure the copper losses of the transformer. With necessary diagram…

A: For finding the copper losses of transformer we do short circuit test as explain below in step 2

Q: Training is required for: Qualified electricians only. b. Only those workers who work on or near…

A: Bartleby has policy to solve only first question and incase if it has subparts then solve only first…

Q: Draw a figure that represents one cycle of the AC voltage signal present at a typical household wall…

A:

Q: List three applications of electrical transformers.

A: Brief description : Transformers works based on the principle called electromagnetic induction and…

Q: What is electrical sub station?

A:

Q: Give the raceway size required for each of the following conductor combinations: 1. Five, 10 AWG,…

A: Given information, Number of conductors=5. Type of insulation is THW. Size of wire=10 AWG. Raceway…

Q: C: What are the two purposes of using the circuit breakers?

A: We need to write the two purposes of using circuit breakers.

Q: Support the finding that workers face many electrical hazards on the job

A: Electrical Hazards on the job 1.Contact with live wire results in electric shock or burn 2.Exposed…

Q: Hoq do current transformers differ from voltage transformers?

A: Current Transformer is used to measure current while, Voltage transformer is used to measure…

Q: What is regenerative electrical distribution system(REDS)?

A:

Q: 01: (A) It is required to generate a high D.C. voltage 40 KV using power transformer (50 KV,1 KVA).…

A: An autotransformer  has a primary winding and secondary winding which is only one single voltage…

Q: What is The prime mover and conversion of  power in the hydro power station

A: The prime mover and conversion of  power in the hydro power station is-

Q: Draw the schematic diagram of Current Transformer and label the parts. Also mention the range of…

A: Schemtaic diagram of current Transformer is as follows The current transformer which is used in the…

Q: During short-circuit test, rated power at the high-voltage winding must be applied.

A: Solution of this question discusses about short-circuit test on a transformer.

Q: A 2-wire d.c. distributor A B 500 metres long is fed from point 4 and is loaded as under: Distance…

A: The solution can be achieved as follows.

Q: In conceal knob and tubing wiring, the clearance to be maintain between conductors is      a. 45 mm…

A: Clearance: It is the minimum distance required between conductors for safety and to avoid hazards.…

Q: What do you call device/tool used for measuring the galvanization or coating of grounding and tower…

A: These instruments square measure referred to as coating thickness gauge or gaussmeter. they're of…

Q: THE TYPE OF WIRES AND WIRE GAUGES?

A: A wire is a single flexible strand of a metal, made up of materials which are good conductors of…

Q: How does the skin effect phenomenon affect the performance of copper cables?

A: The skin effect is a phenomenon that occurs in conductors carrying high-frequency alternating…

Q: Why is the voltage between two phases of 2400 volts 4160 volts and not 4800 volts?

A: Why is the voltage between two phases of 2400 volts 4160 volts and not 4800 volts? Given Vp = 2400…

Q: How can lighting fixture be ground and what size of the conductor can be used

A: There are so many things that come in our mind which is related to light. It may be an artificial…

Q: Explain the installation procedures of a flexible coupling

A: Flexible coupling is used to transfer torque from one shaft to another that is not fully aligned.…

Electrical Power Generation

In an electric power generator, one type of energy is converted into electrical energy. Power-generating systems are simply a combination of potential or stored energy that is converted to provide kinetic energy, which, in turn, generates electrical energy for use in engines, lighting, heating, and other benefits of modern life.