Answer / madhumitha

Buck-Boost transformers are small, single phase, dry type
distribution transformers designed and shipped as
insulating/isolating transformers. They have a dual voltage
primary and a dual voltage secondary. These transformers
can be connected for a wide range of voltage combinations.
The most common use is to buck (lower) or boost (raise) the
supply voltage a small amount, usually 5 to 27%. Buck-Boost
transformers are in compliance with NEC Article 210-9,
Exception 1 when field connected as an autotransformer.

The major advantages of Buck-boost transformers are their
low cost, compact size and light weight. They are also more
efficient and cost less than equivalent isolation
transformers. When connected as an autotransformer, they
can handle loads up to 20 times the nameplate rating. A
buck-boost transformer is the ideal solution for changing
line voltage by small amounts.

Answer / santosh jagale birla cellulosi

Mr. Vasuram,

I heard first time that transformer works on DC suppy. Is
such transformers avilable in market.

Basically buckboost transformer itself disent step up the
volatage it requires a regulator wchich varries the tap
position and gives the desired O/P.

Answer / h nayak

Buckboost transformer nothing but auto transformer



HN

Answer / vasuram

its a dc to dc converter..it can act as buck converter i.e
high i/p voltage to low o/p voltage converter if duty ratio
is higher 0.5 ( or lesser than 0.5 am not sure )
and it can act as boost converter i.e low i/p voltage to
high o/p voltage if duty ratio is vice versa.

In auto transformer if power transferred inductively and conductively are same, the ratio of output/input voltage is A 1 B 0.7 C 0.5 D none of above

2 Answers   Getco,

---

what is the difference between neutral and earth

11 Answers  

---

What do you mean by deregulated power system structure? Which structure (regulated/deregulated) is used by modern power system?

1 Answers  

---

What are the different types of VVVF Drive ?

2 Answers  

---

what is polarity in ac system? and how do identified?

1 Answers  

---

Ps Explain YWY,AFWY Type Cable

1 Answers  

---

Is it benefitial to supply 210v ac to lighting fixtures instead of 240v ac?

2 Answers  

---

why is power supplied in 3 phase only? why not in 2 or 4 phases?

11 Answers  

---

diff.between servo motor and ac motor

0 Answers   Power Grid,

---

WHY THREE PHESE SYSTEM VOLTAGE APPLIED IN 440 VOLT

0 Answers   Infotech, InTech,

---

what is the isolation transformer. what is the isolator?

0 Answers  

---

what is differnce between oil transformer & dry type transformer ???????????

2 Answers  

---