PRODUCTS

High Voltage Transformer

Products Overview

Transformer Is ?

Transformer is device that denaturalizes voltage combining SILICON STEEL and MAGNET WIRE, and changing voltage and strength of alternating current by using law of electromagnetic induction. It is consist of 2 or more coils which use same magnetic circuit, when supply alternating current to the one of coil(input), it produce alternating electromotive force to get wanted voltage(depends on 2nd coil turns) at the other coil(output).

H.V.T : High Voltage Transformer
Device that is using transformer theory. When supply rated voltage to the first side, it produces high voltage to the second. There are neon tube TRANS, TV F.B.T, microwave oven H.V.T and so on.Microwave H.V.T adopted basic of leakage style Trans.
Transformer that has lots of leaking magnetic flux by arrange remotely first winding and second winding or install magnetic circuit (Pass Core). It also called constant voltage transformer.
Its load current is fixed even if load impedance is alters. Role of H.V.T that we are making supplies electric power to magnetron (M.G.T.), so we add Heater Coil between first coil and second coil to heat M.G.T. Heater. Simultaneously, high voltage is supplying from second coil to the M.G.T. to work.

Principle

Supply the rated voltage to the first (PRIMARY) and voltage are abandoned at H.V.T the second (SECONDARY), and Filament voltage and high tension of SEC 1 side are occurred to run magnetron. Magnetron releases high frequency wave, 2450 MHz, to the heating room to heat the food.
Voltage occurred in SEC 2 sides are AC 3.0 ~ 4.0 V that is supplied to magnetron FILAMEN and high tension voltage (AC 1800-2200V) occurred in SEC 1 side changed to DC voltage (that is near in pulse kind) by pass thru half-wave rectification circuit that is consisted of high tension condenser (H.V.C) and high tension diode (H.V.D). This DC voltage is supplied to ANODE of magnetron to make magnetron work.

Base
1. Magnet Wire

As see in picture, it is copper with double film structure. Cover the copper with polyester imides fully, and apply polyamide imide as second film to have enough break and durability.
- COPPER : Its purity is more than 99.9% copper wire that in accordance with KS 3106(annealed copper wire for electrical appliances winding).
- POLYESTER IMIDE : Paint that has good heat resistance
- POLYAMID IMIDE : : Paint that has good heat resistance and abrasion-proof
2. Silicon Steel (Core)
It is called silicon steel lamination and English HADFIELD found in 1889 and, its quality developed highly as mass-produced in the Germany and United States of America thereafter.
There are non-direction and direction silicon steel plate
Silicon content of CORE that we are using is formed for non-direction, silicon content is about 0.5 ~ 5%. Is formed by various kinds' quality of the material according to silicon content.
3. Aramid Paper (Insulation Paper)
ARAMID PAPER (insulating paper) NOMEX is being United States of America DUPONT Company's registered trademark by heat resistance insulating paper and supply all over the world exclusively.
NOMEX insulating paper is made from short length of fiber floc and small union cohesive agent these are formed in paper without other additive by Fourdrinear paper-making machine.
This product is made applying heat and press and being compressed to 0.7 ~ 1.2 specific gravity according to thickness of product. It has white and lemon yellow color, and according to consumer's request, it can be produced various thickness and width.
4. MICA
MICA is nature mineral that has been ranged widely in earth and MICA has superior electric insulation that can use in many industries.
Commercially available MICA is found in the India, Madagascar, Brazil, Argentina, China, Canadian municipal area and MICA that is using in our company is hardened MICA mined in the India and Brazil.
5. Silicon RubberWire (Heater Coil)

SILICON RUBBER WIRE (HEATER COIL) is refers HEATER COIL that use for FILAMENT voltage occurrence in H.V.T and we underlet to professional company.

Feature

UL electric insulation System certification product
- UL-File No. : E108713
Insulation system Class Insulation temperature
DPC-H001 H Class 180℃
DPC-N N Class 200℃
DPC-R R Class 220℃
DPC-H002 H Class 180℃
DPC240(S) S Class 240℃
- Leakage Flux Transformer
- Sorted winding Transformer

Products Class

MWO H.V.T
Power supply that run magnetron of general household microwave oven.
Commercial / IndustrialHVT
Transformer that applied to high frequency industry application appliance has high capacity and, it is easy to occur problems on internal parts and insulation when it is running long period time. It has to be strengthened with double special insulator. Also some transformers that need hear trans to remedy heater voltage drop, included in this category.
Heater Voltage Transformer
Impress rated voltage to the first sec. to get 3.5V ~ 4V out from the Second sec. Separate from High Voltage Transformer for high capacity industrial appliances, this supplies power to heat filament of magnetron initially.

Property


Microwave Oven

Class MWO
Out Power
Input Frequency 2st Voltage Core Size
Americas
Latin America
DPC-N
DPC-R
DPC-240(S)
450W~1,200W 120V~220V 60Hz 1,800V~2,500V 76.2mm
85.8mm

105mm
114mm

Horizontal
Vertical
Europe
DPC-N
DPC-R
DPC-240(S)
450W~1,200W 200V
230V
240V
50Hz 1,800V~2,500V
Asia
DPC-N
DPC-R
DPC-240(S)
450W~1,200W 100V
110V
220V
50/60Hz
    60Hz
50/60Hz
1,800V~2,500V

Industrial

Class MWO
Out Power
Input Frequency 2st Voltage Core Size
Americas 1,200W~3,200W 208V
~
230V
60Hz 2,000V~2,530V   114mm
  120mm
133.2mm
152.4mm
Europe 1,200W~3,200W 230V
~
240V
50Hz
Japan 1,200W~3,200W 100V
~
400V
50Hz
60Hz

Heater Trans

Class MWO
Out Power
Input Frequency 2st Voltage Core Size
Japan 100V
~
240V
50Hz
60Hz
3.0V~5.55V   66mm
 76.2mm
 85.8mm
  90mm

Horizontal
Vertical

Core Size

A : Core Size
Core
Type
MWO
Out Power
A
B
C
E . I

CORE
  450W

   ~

3,200W
76.2mm
63.5mm
45mm

   ~

78mm
85.8mm
71.5mm
88.0mm
76.0mm
90.0mm
75.0mm
96.0mm
80.0mm
 105mm
87.5mm
 114mm
95.0mm
133.2mm
111mm
152.4mm
127mm