Answer / sunil guru

RMU -- ring main unit
this system is basically for distribution purpose
and in this the feeders are connected in a circuit which is
of ring type.
the main benefit is for future expansion extra feeders can
be added.
and the maintenance can be done easily without any
disturbance

Answer / piyush adroja

ring main unit is a one type of switch and which use in sub
station for output power and utilized for more output
connection

Answer / subbu

RMU is a ring main unit which is used as a distribution
systems called ring main distributors where the
connectivity of grid is in the form of ring.

Answer / romeo

The use of RMU is to assure the alternative power supply in
case one of the feeder was lost. It is because in RMU
configuration there can be a choice of power supply either
from the counterclockwise or clockwise power supply with
respect to the load.

Bhel supervision exam question: If 2 generators are working in a network. And if suddenly the field of anyone generator weakens. What will happen in the network? 1. The generator will run as motor 2. The generator will run as motor in reverse direction 3. The generator will take lighter load 4. The generator will take more load

9 Answers   Bhel,

---

A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram

0 Answers  

---

what happens when a dc shunt motor fed with an alternating suppy ?

1 Answers  

---

What are the effects of armature reaction on a DC machine and discuss the various methods to reduce the effect.

1 Answers  

---

what deffrence between KW $ KVA ?

7 Answers  

---

where used impendence relay?

3 Answers  

---

how to calculate P.F from kva only?

3 Answers  

---

what is the Transformer Impedence?How can calculate?

0 Answers  

---

Which phase is prefered for connecting 1phase vt used for synchronism in an OHL? why?

1 Answers   Siemens,

---

DIFFERENCE BETWEEN GROUND AND NEUTRAL?

4 Answers  

---

Wt is the function of reactive power? How it generates & consume though resultant is zero?

0 Answers  

---

what is the thumb rule to know current carrying capacity of copper conductors of different size.

1 Answers  

---