Answer / baljinder singh

tap changer is the part of transformer's secondary winding
which is use to increase and decrease the output voltage of
the transformer.

Answer / bharani

Transformers in general can have tappings in both primary
and secondary.
When we talk of HT transformers, tappings are provided in
the primary winding, this helps us in getting proper output
voltage by changing the tapping whenever the HT voltage
varies from the actual specified voltage.

Answer / byd

i am working at Transformer factory as test engineer, tap
changer is the part of transformer's primary winding which
is use to balance secondary voltage, for example we
have transformer which feature are: 630kva, 33/0,400 kv,
and this transformer has a tap changer , transformer
primary voltage positions are like these
HV(v) Lv (v)
28500
30000
31500
33000 ....... 400 v
34500
36000
network voltage is 33000v but sometimes it can be
increase or decrease , you can change tap changer:)
but this for no-load tap changer for distrubition
ransformer, if it is power transformer you should use
load tap changer

i wasted one year for the job after completed my btech what can i say about 1year time in interview

0 Answers   Infotech,

---

Grounding. Dear all at one of my site we checked the amps at the earthing cable to the alternator it was found 125 to 130 A. at the neutal cable in same machine found 146A. in the same plant checked the earthing current on other alternator it was 52A, and neutral 116 A. we are facing problems with our controller and the card was damaged once. can that neutral/GND current be a reason? as there is common grounding for the Alternator,Brkr panel,Transformer?

2 Answers  

---

what is reactive poower

3 Answers  

---

can indirect loading be called as phantom loading?

0 Answers  

---

Differance between power circuit and control circuit

3 Answers  

---

why we usually call 415 volts instead of 440 volts

3 Answers   S Tech,

---

Q) Write VBscript code along with QTPscript code in QTP tool for below scenario 1. Launch yahoo site(i know) 2. Do loogin(i know) 3.Click inbox link(i know) 4.Go to every page of mail box and count no.of read mails and no.of unread mails(i know) 5.Store page numbers, read mail count and unread mail count in a new excel file sheet 6.Create 10 types of graphs on that data 7.Do logout and close site(i know) 8.Save new excel files with graph

0 Answers  

---



0 Answers   Maples,

---

What is step signal?

0 Answers  

---

i want use the cable size 16cx4 core aluminium usege watts 240x2000w this cable size is correct?

0 Answers   Sabre,

---

how to calculate neutral current in three phase four wire system

1 Answers   Auto Meters,

---

what is the difference between diode and zener diode?

4 Answers  

---