Answer / kj

Tap changing is to change the ratio of the input voltage to
the output voltage. This changes the output voltage.
When the load on a power line changes the voltage changes
as well because of a reduced or increased line losses.
The tap changing means the output voltage can be controlled
to be as close to the desired voltage. Otherwise serious
high or low voltage could be experienced.

why voltages are added when batteries are connected in series?

4 Answers  

---

Is there any particular formula for sizing the bus bar based on the current rating

1 Answers   Bunt Solar,

---

What is meant by Low Resistance Cable and High Resistance Cable.

0 Answers  

---

what is the range of maximum DOL and SDS can be use for pump and fan application

0 Answers  

---

I have doubt that the supply HZ (very low or high than rated ) may affect the power factor. is it true. ?

0 Answers  

---

---

What are safety seals?

1 Answers   HSL,

---

Can anyone please provide me details of MCCB/Contactor/SFU rating calculations for a motor feeder..for example 50 kw.. not from type-2 cordination chart. i want manual calculations..

0 Answers  

---

What does the letter CTNM in negative phase sequence relay means?

0 Answers  

---

why do we have another cartridge filled with oil fitted at the bottom silica gel cartridge in power transforers

1 Answers  

---

what will happen while giving 2 phase supply to 3 phase motor

5 Answers  

---

what is meant by generator differencial protection?

1 Answers  

---

IN MY INDUSTRIES 125 HP MOTOR USED FOR THAT ONLOAD AMPS UP TO 280 SO CAN I USE ONE LOWER KVA DG SET WITH STEP UP TRANSFORMERS THAT MEANS WITH LOW POWER INPUT TO GET CONSTANT HIGH POWER OUTPUT EG:125KVA DG SET = 250 KVA STEP UP TRANSFORMERS

1 Answers  

---