Answer / rajendra.s

no my friend,it depends on APFC relay,
1.in L&T make APFC relay ct is looped in R-phase.
2.in Sentron make APFC relay ct is looped in Y-phase.
3.in Sycon make APFC relay ct is looped in B-phase.

if you have any dout see all above relays wiring diagram.
For measuring PF APFC relay required any two phases & one CT sence on remaining phase from main PCC Phase.
Eg.(R-Y phase & BCT from Main Panel)

From--Rajendra Sawant
Miraj.

Answer / zia

Good day friends
some time some of factory's lode not same in R,Y,B.
Example R=155amp, y=140amp, b=145amp which one we selected
for apfc relay for sense observing p-f . we are selected the
maximum amp flow phase.it can be R or Y or B. for good pf
rating.
so its a CT depends on the flowing amp of the phase

Answer / rajendra.s

Thanks Zia Mam,For Sharing Additional information,but what about the manufacturing relay companys who manufacture the relay which has R,Y,B phase Selection of CT which i have mentioned in above answer,should we select our relay as per our Phase Load.

From-Rajendra Sawant

why no load characteristics of generator also called as occ

1 Answers  

---

why we measure ouput of transformers in kva.

1 Answers  

---

Why does The speed of motor used in elevator remain constant irrespective of load??

1 Answers  

---

What is the purpose of Vector Group in transformer?

1 Answers   Andritz, ThyssenKrupp,

---

In the Variable Voltage Variable Frequency Drive, how the Voltage and Frequency varied ? Is it varied in the Inverter part of the Drive ? Please give us supporting document if any.

0 Answers  

---

---

What is rccb?

1 Answers  

---

In 11kv transmission line whats the maximum power can be drawn?

1 Answers   Concast, Prestige,

---

What is Automatic interlocking circuit dighram between two contactor for DG SET panel.

1 Answers  

---

generaly all power generating devices is expressed in KVA or MVA then why power ststion is expressed in MW

6 Answers  

---

What is sequence network? Discuss all three types of sequence network.

1 Answers  

---

What can be a rating of a transformer(KVA) if the load is about 1000KW?illustrate by showing formula?

2 Answers  

---

Sir, I need a power supply at 380V. The supply I get in three phase is rated 415V. The total supply I have from the supply company is 70KW. Kindly inform if it is better to use a voltage stabiliser for this purpose or a transformer

3 Answers  

---