Home / Online Test / Synchronous Machine Stability Online Test Synchronous Machine Stability S Bharadwaj ReddyLeave a comment Electrical Machines Questions and Answers – Synchronous Machine Stability Synchronous Machine Stability 0% Steady state stability limit is defined as maximum power flow possible through a particular point without loss of stability when power is increased gradually power is reduces suddenly power is reduced gradually power is increased suddenly Correct! Wrong! - Continue >> Transient stability limit is less important than SSSL True False Correct! Wrong! - Continue >> If it is planned to bring an incoming alternator to the operating alternator in parallel, then which of the criteria can be ignored? Phase sequence of the alternator Frequency Voltage magnitude Prime mover speed Correct! Wrong! - Continue >> In a salient pole synchronous machine the air gap is least under the middle of the pole shoe and increases outwards. True False Correct! Wrong! - Continue >> Which one of the following is the base reason to place field on rotor in the alternator? Huge power in stator Small power in field circuit Large current in the stator Insulation of high voltage is made easy on stator than on rotor Correct! Wrong! - Continue >> Series capacitors will improve the Stiffness Transient stability Hunting SSSL Correct! Wrong! - Continue >> (i) Transient stability is lower than SSSL (ii) Transient disturbances are more common Both are false i false, ii true i true, ii false i and ii both are true Correct! Wrong! - Continue >> The steady state limit can be improved by i. Increasing excitation ii. reducing reactance iii. using series capacitors i, ii i, ii, iii ii, iii iii only Correct! Wrong! - Continue >> If the load angle is increased till 135°, the consequence will be increase in stability limit loss of synchronism reduction in stability limit no alternation of synchronism Correct! Wrong! - Continue >> The supply voltage to an induction motor is decreased by 10%. By what percentage, approximately, will the maximum torque decrease? 10% 20% 5% 40% Correct! Wrong! - Continue >> Share the quiz to show your results ! Facebook Facebook Just tell us who you are to view your results ! Show my results >> Synchronous Machine Stability I got %%score%% of %%total%% right Share your results Facebook Facebook Twitter Google+ ↺ PLAY AGAIN ! Previous Post:Synchronizing Power and Synchronizing TorqueNext Post:Hunting and Damper Windings Related Articles Online Test Electronic Devices & Circuits Quiz – Set 15 May 15, 2017 Online Test Choppers Objective Questions – 5 December 1, 2014 Online Test Synchronizing Power and Synchronizing Torque January 2, 2015 Online Test 3-Phase Bridge Inverters Objective Questions – 1 December 1, 2014 Online Test Diode Circuits Questions and Answers – Part 3 December 1, 2014 Online Test Fluidic Systems Objective Questions January 17, 2017 Online Test Electrical Machines Objective Questions – Set 30 December 2, 2014 Online Test Sensors & Transducers Test 3 September 13, 2015 Online Test Analog Electronics Objective Questions – Set 6 May 18, 2017 Online Test Hardware Description Language Objective Questions May 1, 2015 Online Test Measurement of Phase Angle Objective Questions January 9, 2017 Online Test Asynchronous Down Counter Objective Questions May 1, 2015 Also Read : Electromagnetic Fields Objective Questions – Set 3 December 3, 2014 Photo Electric Transducers Objective Questions February 3, 2017 Single Phase VSI Objective Questions – 5 December 1, 2014 Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment.