in a 740 kw dc seperately excited motor field voltage is constant about 17.4 volts and armature voltage is500 volts dc. how it is possible to have two different voltages from single transformer of output voltage 500 volts? if any difficulty in question contact ajitsingh.kadian@gmail.com

1 Answers  

---

my name is venkat .i have good percentage in my academics(ssc 86, intermediate 83 b.tech 73) my question 1..after completion of my ssc i joined in bpc but i didnt got rank in emcet so i completed MPC in one year compartmentally ..so here what am expect question from this background?

0 Answers  

---

what is a types of short circuit and what is a types of distance protection tests

0 Answers   Anna University,

---

Can earth resistance be measured without connecting the earth electrode? and should earthing connections be disconnected What is the effect of connecting two cables of different sizes in parallel with supply? Thanks in Advance. I am intrested to get in touch with some tecnocrats/engineers,my mail i.d is : hiremathvijay@rediffmail.com

1 Answers  

---

what is the function of Choke?

9 Answers   Airport Electrical, Cummins, Tamco,

---

sir, plz tell me how much kvar capacitor required for 1000 amp or 500 Kw load ? what is the formula ?

14 Answers   CSPL,

---

Since phi is the angular displacement between V & I, then why we use phi in power triangle ie. when showing active, reactive & apperent power in triangular manner & if it is ok then where is V & I in the triangle.

1 Answers  

---

which protection are used for turbo generator in thermal power plant.

1 Answers   Grasim,

---

How to select a contactor? How many types of contactors are available

0 Answers   TCS,

---

What is the effect if power factor is above 1 or unity.

15 Answers   NTS,

---

What type of surgery impedence with 200ohs 

1 Answers  

---

What is Peterson coil? Where it is used?

2 Answers  

---