CAN 60 HZ TRANSFORMERS BE OPERATED AT 50 HZ? BASICS AND TUTORIALS

AN ANSWER TO THE QUESTION CAN 60 HZ TRANSFORMERS BE OPERATED AT 50 HZ?

Will A 60 Hz Transformers Work at 50 Hz? Answers and Links

Transformers rated below 1 KVA cab be used on 50 Hz service. Transformers 1 KVA and larger, rated at 60 Hz, should not be used on 50 Hz service due to the higher losses and resultant heat rise. Special designs are required for this service. However, any 50 Hz transformer will operate on a 60 Hz service.

Other Answers and Opinion on this query can be found below:

Can transformers be operated at various frequencies?

A 60 Hz design is normally smaller than a 50 Hz design. For kind information please DO NOT use 60 Hz rated transformers on 50 Hz service. Without exacting designs, higher losses and greater heat rise will result. Operating 60 Hz transformers at higher frequencies may simply give less voltage regulation.

Source: http://www.custompowertransformer.com/Faq.html

Can 60 Hz transformers be used on 50 Hz?

Yes. 60 Hz transformers can be used on 50 Hz if special precautions are taken. The change in frequency will impact the flux density of the transformer causing it to run hot, as if it were overloaded. To offset this effect, you must decrease the input voltage by approximately 17% (1/6th). This means that a transformer rated for a 480 Volt, 60 Hz input could run at 50 Hz but with a maximum input voltage of 398 volts.

Source: http://www.experts123.com/q/can-60-hz-transformers-be-used-on-50-hz.html

Can 60 Hz transformers be operated at 50 Hz?

Transformers 1 KVA and larger, rated at 60 Hz, should not be used on 50 Hz service due to higher losses and resultant heat rise. However, any 50 Hz transformer will operate on 60 Hz service.

Source: http://www.mgmtransformer.com/faq/can-60-hz-transformers-be-operated-at-50-hz/

You might ask, why is it that there is a variation in frequency?

History, politics, and science is the reason. To know what we mean, visit this site for a well thought answers. http://www.school-for-champions.com/science/ac_world_volt_freq.htm

TRANSFORMER PARTS STORAGE GOOD PRACTICE BASICS AND TUTORIALS

GOOD PRACTICE IN TRANSFORMER PARTS STORAGE BASIC INFORMATION

What Are Good Practices In Storage Of Transformer Parts?

Utility companies have enormous amounts of money invested in transformers of all types, including distribution and power transformers. Utilities also have a long history and have developed methods, procedures, and philosophies that over time have proven very effective in prolonging equipment life.

These are collectively referred to as good utility practices and it is instructive to review these practices as applied to power transformers. In particular, this is one of the best practices in storage of transformer parts.

Storage

Bushings, radiators, or other accessories removed from transformers should be tagged by the person removing them to identify the transformer from which they are removed.

Storing Transformers

• Place transformers on sound footing in a safe or protected area.

• Seal all openings where accessories have been removed with steel shipping covers.

• Gaskets should be installed with cover plates.

• All sealed transformers should be purged and pressurized with dry nitrogen for short term storage less than 6 months.

• Refer to manufacturer’s instruction book for specific instructions on storing transformers in oil or nitrogen.

Storing Bushings

• Bushings should be left in transformer if possible.

• If removed, store bushings in a clean, dry place indoors, protected from damage. Oil-filled bushings can be stored in an open area protected from weather.

• Preferred storage of oil-filled bushings is vertical, but oil reservoirs must be elevated at least 10 in. above bottom bushing stud (or other height specified in instruction book).

Storing Radiators and Other Accessories

• All openings on detached radiators must be sealed from moisture and the radiators stored so water cannot stand around the sealed openings.

• Protect all accessories from damage, moisture, and foreign materials.