Answer / syed javeed basha

Isolators are those switches which disconnect (isolate) supply to any particular section. usually these are manually operated during maintenance of transformers or busbars etc.

busbars are those metal strips or hollow pipes which pass current in a substation or grid.

Answer / tapiwanashe vhurumuku

An isolator is a switch operated manually which disconnects power from the main supply

what is hunting?

2 Answers  

---

what is the difference between earth leakage and earth fault?

0 Answers   L&T,

---

Why a motor blower cobination draw more current at winter than summer?

1 Answers  

---

there is a line fault some where on the ove head distribution line. how will i locate the fault for clearing it? ofcourse i have to megger the line but what information makes me clear that the fault is in that section of the line?

2 Answers  

---

why it is mentioned as 8/10 mva transformer why not directly 8mva or 10mva transformer. please explain me the full detailed reason.

4 Answers   Qatar Gas,

---

how to find insulation resistance of a generator(11kv) by theoritical formula??

1 Answers  

---

We have a 33/11kv switchyard having 12.5 MVA power transformer. We export & import power through this transformer. When we export power, the PF will be depend on GRID PF & when we import power the PF will be depend on our load PF. but the problem is that,when neither we export nor import but our 33KV vCB is in close position,our meter read the power factor 0.14 to 0.25 at that moment. So how can be we improve the power factor at that moment.

3 Answers  

---

What is reactive power and where it is used.

0 Answers  

---

What is BMS System???Types...

4 Answers   Emerson,

---

Which type of arc protection devices used.

2 Answers   KSEB, L&T, Siemens,

---

What is difference between metal clad & metal enclosed switchgear?

2 Answers  

---

how to select diiferent power transformers of same capacity on no load loss and full load loss by economical point of view.?

0 Answers  

---