Answer / debasis sahoo

During installation of Transformer on a Pole mounting structure, following checks should be made:
Ensure that the base channel of transformer is at height complying to IEC Standards:
a) Height of top of HV bushing from ground for pole mounted transformer should be 4.572 meters minimum (15 Ft)
b) Height of top of HV bushing from ground for plinth mounted transformer should be 2.75 meters minimum (8 Ft)

Ensure that base channel is horizontally leveled

Avoid jerky movement of the transformer while lifting it upwards during installation

During installation ensure that the HV bushings of the transformer are on the DO unit (or HG fuse unit) side of the structure

After installation of transformer, also check that other allied equipments such as AB switch, Horn Gap fuse units, DO Fuse sets, Lightening arrestor etc. are fitted at appropriate positions as per the applicable drawing issued by the utility.

Use PVC unarmoured cable (3 ½ core) of appropriate size and length for LV side. Ensure that the lugs are appropriately crimped at the ends.

DEAR SIR,I GOT THE CALL LETTER FROM RRB, SECUNDERABD AS A JE-II SO PLEASE PROVIDE ME SOME MODEL QUESTION AND ANSWER PAPERS AND LAST YEAR QUESTION PAPERS

0 Answers  

---

if we run a 3 phase machine on two phase what will happend??? given answer with solid reason please

0 Answers   Bhel,

---

Electricity sometimes can be dangers , sometime got shoked form it . It is because of volatge or Current

6 Answers   Kirloskar,

---

Difference Between B Curve & C Curve in MCB.

3 Answers  

---

25 kvar capacitor , how much current ? For 25 KVAR--Capacitor I = ?

3 Answers  

---

I have 2 KW electric water heater.I am gonna use it in controlling water temp.so I needed to increase or decrease the heating capacity.is there any electrical-electronic circuit for varying the resistance & so current?

1 Answers  

---

In 3 phase induction motor even with low Voltage it reaches nearly it's rated speed why? (for example instead of 400V it reaches with 250V)

2 Answers  

---

What's ND relay & it's functions?

2 Answers  

---

How much RPM in Turbocharger in Diesel engine.

9 Answers   Greaves, MAHINDRA,

---

Why should we hire you over the others waiting to be interview?

0 Answers  

---

Why is the uniform distribution of the capacitor discs in a suspension type insulators essential , what can u do to improve the string efficiency ?

1 Answers  

---

What is the difference between ELCB and RCD

7 Answers  

---