Answer / Durgesh Kumar Srivastava

Contact chatter in an air conditioning system can be caused by several factors, even without demand. Some possible reasons include: 1. Loose or worn parts causing vibration. 2. Poor electrical connections resulting in arcing. 3. Improper contact design or materials. 4. Faulty start-stop relays or controllers.

What is SF6 Circuit Breaker?

10 Answers   Sodexo,

---

WHAT IS THE MEANING OG (li = 7 In)

1 Answers  

---

seromechanism

4 Answers   Bhel,

---

where this neutral connection goes after returning from the load(home ,factory,industries).Is it grounded at the transformer side or atthe generator side .If it is grounded then we also ground the earth connection.is there any problem with this.

1 Answers   IOCL,

---

when the motor was star position that is running ok but when the motor was delta it was tripped? why?

5 Answers   Nimbus, SEL Manufacturing,

---

magnetizer priciple

1 Answers  

---

In a single how much maximum current and watts using

1 Answers  

---

7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?

1 Answers  

---

A system absorbs 100 k J of heat and the increase in its internal energy is 100 kJ; the work done is

1 Answers   Caterpillar,

---

What type of wiring series or parallel is used for conventional and addressable type FAS & why?

1 Answers  

---

What is the difference between earthed and unearthed power cable.

1 Answers  

---

If we touch the Capacitor terminals you feel shock after the capacitor was put in operation and not in case of inductor though both are energy storage elements.why?

4 Answers   HAL,

---