What is the difference between CRNO and CRGO in an
transformer and what is the advantages of these two.




Answers were Sorted based on User's Feedback



What is the difference between CRNO and CRGO in an transformer and what is the advantages of these..

Answer / zahid noor

CRGO & CRNO are both electrical steel grades used for
stampings & cores of electrical Transformers & other
electrical appliances.
CRNO is cold rolled Non Grain Oriented steel laminations ,
thickness available is not less than .50mm as compared
to .27 of CRGO, & Hence the losses in CRNO are more than
four times of CRGO.CRNGO Non oriented fully processed
steels are iron-silicon alloys with varying silicon
contents and have similar magnetic properties in all
directions in the plan of the sheet. They are principally
used for motors, generators, alternators, ballasts, small
transformers and a variety of other electromagnetic
applications.

WHERE AS CRGO is used for Distribution as well as Power
Transformers due to its low loss characteristics.
CRGO or Cold Rolled Grain Oriented Steel is available in
various grades (generally called M3, M4, M5 & M6). Major
international standards such as Japanese (JIS), American
(ASTM), German (DIN) and British Standards are AVAILABLE
which specify grade, thickness, Watt Losses and Magnetic
Flux density.Conventional CRGO materials (M4, M5, M6) are
used regularly for cores in Transformers.

Is This Answer Correct ?    170 Yes 8 No

What is the difference between CRNO and CRGO in an transformer and what is the advantages of these..

Answer / kuldeep

crgo is COLD ROLLED GRAIN ORIENTD, it is core material of x-
mer. it is used to minimize hyteresis losses.

Is This Answer Correct ?    55 Yes 12 No

What is the difference between CRNO and CRGO in an transformer and what is the advantages of these..

Answer / rajesh babu.d

CRGO - Means "Cold rolled Grain oriented" Silicon steel.
The line itself states that the distributed grains are
oriented through cold rolling process, which gives you
minimized losses.
As the CRGO material having low loss values, these material
is universally accepted to design the Core Structure of the
Transformers, in which losses play a vital role.

CRNO - It is Cold rolled non grain oriented, that means in
this the grains are distributed and not oriented in the
soecific structure.
this process doesn't cause to minimise the loss, and hence
these are having high loss comparitively with CRGO.
These material always finds the application to design the
core structure of any electrical equipment, in which losses
are not concerned to a greater extent.

Is This Answer Correct ?    28 Yes 6 No




What is the difference between CRNO and CRGO in an transformer and what is the advantages of these..

Answer / vinothbabu.k

I DONT KNOW ABT THE CRNO,BUT I KNOW ABT THE CRGO-IS COLD
ROLED GRAIN ORIENTD,ITS THE MATERIAL USED IN THE
TRANSFORMER WINDING....

Is This Answer Correct ?    68 Yes 51 No

What is the difference between CRNO and CRGO in an transformer and what is the advantages of these..

Answer / sekhar

1.CRGO -cold rolled Grain Oriented Steel.Basically high
silicon content in steel which improves electrical
properties.Grain orientation takes place in line of rolling
and with box annealing and hences losses are less in in
grain orientation direction where current flows in a
particular direction.Basically with less electrical losse
e.g hysteresis loss,heat loss and mainly used in power
transformer.
2.CRNO-Cold rolled non oriented steel having lees silicon
content than CRGO but more than ordinary steel.Grains are
non oriented and hence used in mainy electrical stamping
manufacturing for fan,motors,chocks etc .It gives less
elect losses.

Is This Answer Correct ?    9 Yes 0 No

What is the difference between CRNO and CRGO in an transformer and what is the advantages of these..

Answer / guest

I KNOW ABT THE CRGO-IS COLD
ROLED GRAIN ORIENTD,ITS THE MATERIAL USED IN THE
TRANSFORMER WINDING....

Is This Answer Correct ?    34 Yes 33 No

What is the difference between CRNO and CRGO in an transformer and what is the advantages of these..

Answer / samy

Compare to crno , crgo is the best economic steel material
used to make transformers core due to low loss
characteristics.

Is This Answer Correct ?    2 Yes 3 No

What is the difference between CRNO and CRGO in an transformer and what is the advantages of these..

Answer / hakim

CRGO IS COLD ROLLED GRAIN ORIENTED AND CRNO IS COLLED
ROLLED NON GRAIN ORIENTED STEEL ,BOTH ARE ELECTRICAL STEEL.
CRGO USED IN TRANSEFORMER AND CRNO USED IN MOTOR WINDING,IN
COMPRESSER .

Is This Answer Correct ?    2 Yes 3 No

What is the difference between CRNO and CRGO in an transformer and what is the advantages of these..

Answer / rameez raja kaleel

The correct explanation is for cold rolled grain oriented
winding have the flux density is saturated.we know the flux
density B= flux/area since Bis constant the flux is also
constant there will not be any change in the frequency
since E/F is directly propotional to flux hence the losses
in the windings has been reduced,.but i have no idea on CRNO

Is This Answer Correct ?    10 Yes 12 No

What is the difference between CRNO and CRGO in an transformer and what is the advantages of these..

Answer / saneesh .k

THE ANSWER IS THAT , CRNO IS THE SHORTEST FORMS OF ' COLD
ROLLED GREIN ORIENTED STEEL AND IS USED IN CORE MATERIAL OF
THE TRANSFORMER .HERE THE MAGNEIC OF SUCH MATERIALS AXIS IS
ARRANGED IN STRAIGHT ( PASSAGE OF FLUX IS IN STRAIGHT ).BUT
, CRNO IS THE SHORTEST FORM OF COLD ROLLED NON-ORIENTED
STEEL USED IN MOTORS AND OTHER ROTATING MACHINES .HERE THERE
IS NO ORIENTATION OF THE MAGNETIC AXIS DUE TO CIRCULAR FORM
OF STATOR AND ROTOR STAMPINGS.

Is This Answer Correct ?    8 Yes 13 No

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