Find the main dimensions of a 2000 kVA, 187.5 rpm, 50 Hz, 3 phase salient pole synchronous generator. The generator is to be vertical, water wheel type. The specific magnetic loading is 0.6 Wh/m² and the specific electric loading is 30,000 ampere conductors per metre. Use circular poles with ratio of core length to pole pitch 0.7. Specify the type of pole construction used if the runaway speed is 2 times the normal speed.

Find the main dimensions of a 2000 kVA, 187.5 rpm, 50 Hz, 3 phase salient pole synchronous generator. The generator is to be vertical, water wheel type. The specific magnetic loading is 0.6 Wh/m² and the specific electric loading is 30,000 ampere conductors per metre. Use circular poles with ratio of core length to pole pitch 0.7. Specify the type of pole construction used if the runaway speed is 2 times the normal speed.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter11: Transient Stability

Section: Chapter Questions

Problem 11.1P

See similar textbooks

Similar questions

For Problem 3.18, the motor operates at full load, at 0.8 power factor leading, and at a terminal voltage of 10.45 kV. Determine (a) the voltage at bus 1, which is the generator bus, and (b) the generator and motor internal EMFs.
A 3 phase 4MVA, 12 kV star connected synchronous generator has Zs= 0.8+J30 ohm. Using circle diagram only, find: 1. The output power developed at unity power factor with excitation equal to 1.25 of rated voltage. 2. The load angle and power factor if the generator supplies (1500 KW) at rated voltage and excitation lequal to (1.2) of rated voltage. 3. Repeat part (2) when .armature resistance is neglected
A 3 phase, star connected synchronous generator supplies current of 10A having phase angle of 20º lagging at 400V. Find the load angle and the components of armature current Id and Iq if Xd = 10 ohm and Xq = 6.5 ohm Assume armature resistances to be negligible
Find the main dimensions of a 2000 kVA, 187.5 rpm, 50 Hz, 3 phase salient pole synchronous generator. The generator is to be vertical, water wheel type. The specific magnetic loading is 0.6 Wb/m² and the specific electric loading is 30,000 ampere conductors per metre. Use circular poles with ratio of core length to pole pitch= 0.7. Specify the type of pole construction used if the runaway speed is 2 times the normal speed.
A three-phase, 100-MVA, 20-kV generator is connected to a three-phase, 100-MVA, 20-kV motor through a transmission line. The reactances of the generator and motor are 0.25 and 0.20 per unit, respectively. The line reactance is 0.10 per unit. The motor is taking 50 [MW] at 0.8 power factor leading at rated voltage. Suppose a three-phase short circuit occurs at the generator terminals, determine the transient currents in the generator and motor as well as the short-circuit current.
A three-phase Y-connected synchronous generator has rated values of 90 MVA, 15 kV, 0.6 reverse power factor, 50-Hz. Synchronous reactance 1.6 ohmsand armature resistance is neglected. According to thisa) Find the induced voltage (EA) and armature current (LA). b) Find the voltage regulation.c) If this generator was operated at 60 Hz with the same armature and field losses as at 50 Hz; What would be the voltage, apparent power and reactance of the generator
a) 3-phase star-connected synchronous generator supplies a current of 10A having phase angle of 20° lagging 400V (phase voltage). Given the direct and quadrature axis reactances as 10ohms and 6.5ohms respectively and neglecting armature resistance, Find: 1. The load angle 2 The direct and quadrature components of armature currents 3. Voltage regulation
Q2)A. Explain compound DC generator, also describe its types and terminal characteristics of compound DC generator. proper explanation and diagram
QUESTION 1:- (a) A 4-pole, 3-phase, star-connected, 50 Hz synchronous generator, with a synchronous impedance of j24.5 Ω/phase and negligible resistance, delivers 5 MW of power to a 13.8 kV busbar. At this operating point, the excitation is equal to 1.8 p.u. Calculate the phase value of the generated emf (E) and hence calculate the electrical load angle, δ, at which the machine is operating. (b) Sketch a typical operating chart for a salient pole synchronous generator and on the chart identify the following; The Apparent Power limit, The field (excitation) limit, The Real Power limit, A line which represents a constant lagging power factor, The rotor angle for operation at any given point of operation, e.g. rated power and 0.9 power factor lag. (c) A Stamford HCI534F framesize generator has been selected for a stand-alone diesel-generation application. The generator is to operate at 400 V, 50 Hz, with the self-excited (SX) excitation scheme. Datasheet information can be…
A 60 MVA, 69.3kV, three-phase synchronous generator has a synchronous reactance of 15 ohms/phase and negligible armature resistance. The generator is delivering rated power at 0.8 power factor lagging at the rated terminal voltage to an infinite bus bar. What is the maximum three-phase power that can be generator can deliver before losing its synchronism?
A 100KVA, 6.6 kV 3 PHASE star connected cylindrical pole synchronous generator has 20-ohm as synchronous reactance and the armature resistance is negligible and the generator is working at the full load and unity power factor then find the value of the induced emf voltage(line to line). Answer fast
A three-phase, 12-kV, 60 Hz, 6 pole wye connected synchronous generator has synchronous reactance of 15 Ω per phase and negligible armature resistance. For a given field current, the open circuit voltage is 13 kV. Determine the following:(A) Terminal Voltage b) Excitation voltage EA at maximum powerc) The maximum power developed by the generator