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Old 18th November 2003, 05:23 AM   #1
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Location: Hong Kong
Question Transformer Steel Material

Hi all,

I find some transformer manufacturers claim that their transformer (power trans, output trans and choke) are using Z11 or Z14 silicon steel.

What is Z11 or Z14 mean? (I know it is according to some standards, but any more details?)

Z11 or Z14 is better?

Thank you for your help in advance.

Tuna Fish
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Old 18th November 2003, 09:09 AM   #2
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Z11 mean old specification from nippon steel material
equivalent to 35Z155 present specification
thickness 0.35 coreloss 1.47 w/kg at 1.7Tesla 50 Hertz
equivalent to M6 AISI
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Old 19th November 2003, 02:55 AM   #3
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How about Z14?

Does Z11 better or Z14 better?
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Old 19th November 2003, 04:58 AM   #4
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Hello
Z11 is the lowest grade in group grain oriented core that is high efficiency material mostly used to make big transformer like distribution transformer and power transformer.

Z14 didn't have in system.

May be you mis remember. Because ther are another one group of silicon steel call non oriented silicon steel. that one mostly use in small transformer, motor core, stepping motor, balast core and also Choke,and etc.
one of this they have H14 or 50H400 in present .
This one coreloss=4.0 w/kg at 1.5 tesla 50 Hz

Of course Z11 is better than H14
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Old 25th November 2003, 02:45 AM   #5
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Default Transformer Steel Material

hi,

pls see the message & information of the core.

cobalt lamination.

http://www.vt4c.com/bb/viewtopic.php?t=115

cobalt & other lamination steel detail.

pls visit www.diyaudiocraft.com.

homepage>more info> to see the base.


Lamination Materials


We have tried to assemble in one place both an overview of all the commonly used lamination materials, as well as some data which may be useful to designers of electromagnetic equipment.


Select an article from the list below...


Cold Rolled Motor Lam | Silicon Steel | Nickel Alloys | Cobalt Alloy

for our double c-core lamination.

http://www.vt4c.com/bb/viewtopic.php?t=155


thanks

thomas
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Old 27th November 2003, 07:29 PM   #6
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Default transformer steel material

one of member talking about the different performance & different spec of different core.
Z11,Z14, EI Cobalt, amphorous core too.
Pls visit & take a look.

http://www.vt4c.com/bb/viewtopic.php?t=149

many data contain.

thanks

thomas

www.diyaudiocraft.com
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Old 28th November 2003, 04:38 AM   #7
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Talking transformer steel material

hi all,

pls see the 0.22mm thickness 78% permalloy lamination.
the black one Orient-HiB 0.15mm.

thanks

thomas
Attached Images
File Type: jpg c-core power trans photo.jpg (73.3 KB, 544 views)
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Old 28th November 2003, 06:35 AM   #8
AJT is offline AJT  Philippines
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hi,
can you tell how they were able to color the laminations black? thanks
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Old 28th November 2003, 07:10 AM   #9
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Default transformer steel material

hi joans,

the silver colour lamination because of contain Nickel.
Nickel alloy will more shininy with more nickel contain.
the black colour orient HI-B because of the different grade, physical property as cool roll & heated roll. Different flux density will have different.
But in my knowledge thinner lamination will be better because of less core lose.

for more information pls visit my site to proto lam.

www.diyaudiocraft.com

Click more info & see the bottom.
U can see the detail of different lamination.

thnaks

thomas
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Old 28th November 2003, 07:15 AM   #10
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Thank you Siu Siu Man.

Nice to meet another Hong Kong DIYer in here.
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