Answer / vinod

when a load is to be breaked suddenly with a less
decelaration time or when a motor is stoped within its
system time constnt,they regenerate the energy back to the
mains.this regeneration happens through VFD.

to dissipate this regenerated energy a breaking resistor is
connected to the VFD.

Answer / shinyvikram ganji

usually braking resistor is associated with drives.suppose
a motor is running at some speed.assume the supply is cut
of suddenely.but the rotor continues to rotate and
generates emf.so the produced emf is to be dissipated in
the resitor for motor to be halted

Answer / vinamra

If the motor supply is cutoff instantly,but due to inertia
the motor can not stop instantly and it generate the
voltage and fed to drive due to less deaccelaration of
drive.To consumed this energy we connect the brake resister
in drive.

how we findout a ignater is faulty or not?

0 Answers  

---

in 3phase 50kva dg what is the full load current for single phase laod

6 Answers  

---

Explain what is Zener diode?

1 Answers  

---

What is the function of trip neutral close switch?

11 Answers  

---

expansion of rccb

2 Answers   Videocon,

---

Why we use Fuse in transformer in secondary side.Why we dont use fuse in primary side?

1 Answers   Care,

---

Is there any thumb rule for cable selection for any current rating ?

1 Answers  

---

Can the output voltage of a rectifier be greater than the input AC voltage without the use of any voltage multiplier in the circuit??please provide the explanation too..

0 Answers   IOCL,

---

Is KCL applicable for close circuit?

2 Answers   Toto,

---

if we use a normal natural thundering; than approx how much amount of electricity we generate?

1 Answers   Visa Steel,

---

which motor is used in mixies

10 Answers  

---

How to calculate the efficiency of Turbo Generator(Alternator) in general....?

0 Answers   Thermax,

---