[0001] The invention I quote for Transformer whose Primary is supplied by 380V 50Hz or 440V
60Hz, and at the Secondary we receive the desired voltage in spite of the difference
of frequency (Voltage) which exists at the Primary.
[0002] This kind of Transformer cannot be found in the market. The existing Transformers
which can be found in the market, have one supply to the Primary 380V 50Hz or 440V
60Hz and to the Secondary of the Transformer we receive the desired voltage, corresponding
to the frequency of the Primary.
[0003] The advantage of this invention is the industrial manufacture of such a type of a
Transformer in which the Primary of the Transformer is supplied with 380V 50Hz or
440V 60Hz.
[0004] We supply at the same winding of the Primary Transformer 380V 50Hz or 440V 60Hz,
and at the Secondary we receive the desired voltage we want, regardless of difference
of the frequency and voltage of the Primary.
[0005] Primarily, and very importantly, it will have a wide application to the Merchant
of Marine where the generators of the ships, as it is known, by producing a voltage
440V 60Hz or 380V 50Hz, due to the difference of frequency (50Hz or 60Hz) and voltage,
it is very difficult to find in the market the suitable Transformer we need.
[0006] Fig.No.1 shows the view of the Transformer Supply. The above Transformer is 70 Watt.
Primary 380V/390V 50Hz or 440V/455V 60Hz and Secondary 220 Volt.
RELATION OF VOLT REVOLUTION PER VOLT = R/V
[0007] We have cm² of Transformer 10, 24 cm².
R/V = REVOLUTION PER VOLT
[0008] 
We want PRIMARY 380V.
[0009] 380 X 4,492 = 1706 total revolution at 380V 50Hz.
[0010] we want R/V at 60 Hz 440V.
4,492.50 : 60 = 3.743 R/V at 60Hz and 440 x 3,743 = 1646 revolution at 440V 60Hz.
[0011] We rave at the Primary of Transformer 1706 revolution for 50Hz, and we want to the
Primary 1646 for 60Hz. 60 revolution (=) we have at Primary which corresponds to 60
: 3.743 = 15Volt plus support to the Primary with 1706 revolution at 440V. That is
440V + 15V =455 Volt resisting the Primary at 60Hz to be operational. Verifying the
above calculation we have:
Revolution at the primary
Therefore, the Primary works for 440V - 455V 60Hz. Revolution at the Primary
CALCULATION AT THE SECONDARY:
[0012] R/V 50Hz 4.492 x 220V = 988
R/V 60Hz 3.877 x 220V = 853 total revolution one way out. Total revoltution at the
Secondary is 988 for 220V 50Hz, 852 revolution for 60Hz + 136 revolution at 50Hz =
Total 988 revolution as the coil at the Secondary.
[0013] Remark: In the market there exist Transformers under name Plate ex. 220V/100V, 50Hz or 60Hz.
These types of Transformers are completely irrelevant to our Transformer because the
RATIO of revolution is calculated for 50Hz 220V/100V and therefore it is perfectly
working at 60Hz as well.
1. The Transformer Supply consists of one cord and two coils and it is characterized
by its Primary being supplied by 380V 50Hz or 440V 60Hz, and to the Secondary we receive
by induction the desired voltage in spite of the difference of the frequency and voltage
which exists at the Primary.
2. At the same Transformer Supply, as hereinabove described at No.1, which could be either
monophase, or twophase, or threephase Transformer, we receive the desired voltage
by same calculations.
