Answer / meenakshi

basically torque of dc motor mainly depends on armature
current and flux.for a dc shunt motor ,this flux is nearly
a constant but for dc series motor this flux is mainly
dependent on armature current.so torque of dc series motor
is now dependent on square of armature current. hence it
has a very high starting torque.

Answer / s.a.koushik

In series motor the field and armature winding are in series connection.so when starting what ever the current drawn by the armature winding passes through field winding also.since current flow is not restricted in series circuit.so the amount of flux produced bu field and armature winding will be more enough to produce high torque.(because during starting current drawn by armature winding is high).

what is ballast

1 Answers  

---

no EB power DG is not starting?

6 Answers  

---

what is the function of choke in tube

1 Answers  

---

When we need start the motor by method of star delta which size (KW or HP)motor should must be operate in Star Delta Method,

3 Answers  

---

what is tha gap between the pole of 132kv line

2 Answers  

---

Why we use the D-curve MCBs in critical power distrubution.

4 Answers   Sodexo,

---

Why capacitor bank does not require in DG Set?

21 Answers   IBM,

---

HOW WE KNOW IN PHYSICALLY THE CONTACT SURFACE OF A VACUUM INTERRUPTER IS GOOD OR GOING TO DAMAGE IN A VCB AFTER ABOVE 500 TIMES OPERATED.

0 Answers   Areva,

---

Form fator is the ratio of?

5 Answers  

---

What is the difference between online and offline UPS

1 Answers  

---

how many types of ratings are there of transformer

5 Answers   Met Trade,

---

how to set relay setting? and example calculation...

0 Answers   JSW,

---