Answer / engr. l. o. osuji

Hi
The bulb of the Buchholz relay contains liquid mercury which
closes the alarm or alarm/trip contacts whenever the relay
is activated. Note that the liquid mercury closes the
alarm contacts only if the gas flow through the relay is
not serious. However, if the flow is serious both alarm and
trip contacts will close to give alarm and trip signals.
From the above explanation you can understand that liquid
mercury being a good conductor must be kept away from the
contacts under normal condition. The only way to do this is
by tilting the relay.

Please let me if star point(Nutral) of Delta/ Strar transformer, in 4wire (TPN+E) is tobe gruonded seperatly,inaddition to LV Panel earthing????

1 Answers  

---

why we use perllel conection system in the wiring?

4 Answers   Airtel,

---

how much capacity(rating) of generator required to operate a load of 100kv.

6 Answers   DSC,

---

The reason why the sending end and receiving end voltage sare almost equal when capacitive load is added.

4 Answers  

---

Why 3 phase induction motor getting supply in body if one of it's phase is cut

0 Answers  

---

WHAT IS SUBSTATION & ACCORDING TO VOLTAGE HT,EHT SUBSTATION EXPLAIN IT

0 Answers  

---

hi, could someone help me to find a control design for syncronising panel .

0 Answers  

---

is power factor correction related with vector group of transformer i.e:Dyn11?

1 Answers  

---

how much battery need for 2kv online ups for 2hr backup

3 Answers   Eaton, Emerson,

---

WHAT WILL HAPPEN IF INPUT SUPPLY OF RCBO IS CONNECTED TO OUTPUT SIDE

2 Answers   ABG Shipyard,

---

what is deffrent alternatid and gernater

2 Answers  

---

sir, plz tell me how much kvar capacitor required for 1000 amp or 500 Kw load ? what is the formula ?

14 Answers   CSPL,

---