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High Permeability Permalloy Core Iron-Nickel Alloy For Current
Transformer
Permalloy often refers to iron-nickel alloys with a nickel content
in the range of 30 to 90%. It is a very widely used soft magnetic
alloy. Through appropriate technology, magnetic properties can be
effectively controlled, such as initial permeability exceeding 105,
maximum permeability exceeding 106, coercivity as low as 2‰
Oersted, rectangular coefficient close to 1 or close to 0,
Permalloy with a face-centered cubic crystal structure has good
plasticity and can be processed into 1μm ultra-thin ribbons and
various forms of use. Commonly used alloys are 1J50, 1J79, 1J85 and
so on. The saturation magnetic induction of 1J50 is slightly lower
than that of silicon steel, but its magnetic permeability is dozens
of times higher than that of silicon steel, and its iron loss is
also 2 to 3 times lower than that of silicon steel. It is made into
a transformer with a higher frequency (400~8000Hz), and the no-load
current is small. It is suitable for making a small high-frequency
transformer below 100W. 1J79 has good comprehensive performance and
is suitable for high frequency and low voltage transformers,
leakage protection switch cores, common mode inductance cores and
current transformer cores. The initial permeability of 1J85 can
reach more than one hundred thousand 105, which is suitable for
low-frequency or high-frequency input and output transformers,
common mode inductors and high-precision current transformers with
weak signals.
Application:
They are suitable for the application in weak magnetic field, can
be used for manufacturing high sensitivity and small power
transformer, low power magnetic amplifier, relay, head of magnetic
recording device, zero sequence current transformer, power
converter, precision current transformer, magnetic amplifier, power
transformer, choke, pulse transformer, change polarity pulse
transformer, DC voltage converter, magnetic modulator, constant
inductance element, unipolar pulse transformer, magnetic shielding,
and so on.
Parameters
Size(mm) | Input current (A) | Output Power(mW) |
55*65*5 | 10 | 13mW min |
55*75*10 | 5 | 38mW min |
55*75*12 | 5 | 45mW min |
48*68*15 | 5 | 50mW min |
55*75*20 | 3 | 45mW min |
parameter:
SIZE | Input Current | Turns ratio | Workload | Voltage | Output Power |
55*65*5mm | 10A | 900T | 1K | 3.7V | 13mW |
55*75*10mm | 5A | 400T | 400Ω | 3.9V | 38mW |
54*78*12mm | 5A | 500T | 1K | 7V | 49mW |
67*47*15mm | 5A | 400T | 750Ω | 6V | 48mW |
55*75*20mm | 3A | 250T | 500Ω | 4.3V | 36mW |
95*75*20mm | 3A 5A | 250T | 400Ω 300Ω | 3.4V 4.5V | 28mW 67mW |
85*55*25mm | 3A 5A | 250T | 600Ω 500Ω | 5.4V 7.6V | 48mW 115mW |
88*67*10mm | 5A | 400T | 500Ω | 4.5V | 40mW |
72*47*27mm | 3A 5A | 250T | 600Ω 500Ω | 5.6V 7.7V | 52mW 118mW |
63*50*12mm | 5A | 400T | 300Ω | 2.9V | 28mW |
58*42*8mm | 5A | 400T | 300Ω | 2.7V | 24mW |
58*45*20mm | 5A | 400T | 300Ω | 5.3V | 46mW |
50*35*15mm | 5A | 400T | 400Ω | 3.7V | 34mW |
48*38*10mm | 5A | 900T | 1K | 4.7V | 22mW |
43*33*6mm | 5A | 900T | 600Ω | 2.6V | 11mW |
40*25*15mm | 5A | 400T | 500Ω | 5V | 50mW |
43*33*9mm | 5A | 900T | 1K | 4.5V | 20mW |