Answer / shraddha

if ac supply accidently given to dc series motor, for first
half cycle it run but another negative half cycle it should
be run opposite direction but due to rotor inertia it will
not happend but there is opposite force excerted on rotor &
motor stop this process require fraction of second so it
look like its not running.so motor will not running.

Answer / satyaveni

nothing will be happen.with some modificatios the de motor
works as an ac motor

1. alternator has full load regulation of 4% when pf of the load is 0.8 lag, 1500 rpm. full load regulation of 1400 rpm for 0.8lag will be ________ ?? 2. torque angle of a sync m/c operating from a constt voltage bus is usually defined as space angle between _______ . 3. method most effective in finding out no load losses in large DC shunt motoris ______ . 4. current carrying capacity of fuse material depends on ______ . 5. coil has res. 10 ohm, inductance 1H. what wil be current after 0.1sec after switching on to a 500V DC SUPPL ? ? 6. effect of phase lag compensation on servo systems ___________ . 7. rotor of a dc machine is usually supported upon ______ . 8. DC motor is preferred to AC motor in which application ?? 9. 3 nos of 10:1 Xmer are connected in Star-Delta to supply a load at 230V.the supply voltage must be ______ . 10. voltage source produces max current in which circuit. 11. cal. power, if current and voltage are out of phase by 90 degree. 12. suitable length of Xmission line of power at 66 KV. 13. Which of the theorm helps in simple computation when the load across a ckt is varying ?? 14. what is the adopted line length for power Xmission of power by cables ??

5 Answers   TATA,

---

why ac supply neutral should earth not in dc (-)

2 Answers  

---

In constant power region of 3-phase IM torque-speed characteristics, if frequency increases flux A does not alter B decreases C increases D none of above

0 Answers  

---

I have been short listed for sydicate clerkcal post .i have interview on 15th sept..i want to ask if i don't know kannada to read and write they won't allow me to attend the interview?Do send u r reply.......

1 Answers   Syndicate Bank,

---

why the power factor in inductive load is lagging while it is leading in capacitive load?

6 Answers  

---

In case of 11kV dual delta bank what are the recommended protections with specific CT / VT requirements? The capacitor bank is to be connected to the main 11kV switchgear from where the H.V.Motors and auxiliary 440V loads.

1 Answers  

---

why rating of alternator in kva & induction motor in kw

9 Answers   Siemens,

---

Why dose voltage rated at 11kva

1 Answers   TK Chemical Complex,

---

11 kv line me tino phase takra jaye to present time me approximately voltage aur current kya hoga...

2 Answers   Electrical, Electrical Tech, Videocon,

---

Why is voltage is required to be within permissible range for an electrical equipment?

0 Answers  

---

What is meaning of out of phase (making & breaking) capacity And how to calculate

0 Answers   BMC,

---

what is the different beetween kva and kwh?

4 Answers  

---