Celem MT SERIES Matching Transformers

Matching Transformers

The MT series creatively addresses the key characteristics of high quality matching transformers for high frequency / high power applications.

• The skin effect in the MT is negligible due to its unique laminar structure. Instead of the traditional copper tubes, the MT winding is made of laminar copper sheets. At 350 kHz this revolutionary structure reduces resistive losses by a factor of 10, and consequently increases overall efficiency to above 90%.
• The coupling coefficient of the MT is exceptionally high. Using alternating primary and secondary layers of thin copper sheets creates unprecedented coupling and very low reactive losses. The MT was designed to achieve zero stray inductance. This advanced design results in short circuit voltage of less than 10%, so that over 90% of the available reactive power is transmitted to the load.
• The MT completely avoids de-rating of specification when tapped, through an innovative yet simple combination of identical coil elements that are connected in series and parallel. This enables the transformation ratio to be modified quickly and without power reduction.
• The frequency range of the MT is exceptionally wide: 5 – 350 kHz. This is made possible by practically eliminating stray inductance, as well as by using high saturation ferrite.

Specifications

TYPE

MT 250

MT 300

MT 500

MT 1000

Dimensions (L x W x H)

mm

287.5 x 228 x125

287.5 x 228 x170

287.5 x 228 x170

287.5 x 228 x 260

Weight

kg

18

22

26

45

Tapping

ratio

3:1

4:1

2:1

6:1

3:1

2:1

12:1

6:1

4:1

3:1

2:1

Max Primary voltage

Vrms

600

800

1200

1200

Max secondary current

A

1500

2000

3000

6000

Max primary current

A

500

500

1000

500

1000

1500

500

1000

1500

2000

3000

Reactive power transfer

%

> 90%

> 90%

> 90%

> 90%

Active efficiency

%

> 95%

> 95%

> 95%

> 95%

Max power

kVA

250

300

500

1000

Stray inductance

?H

< 0.2

< 0.3

< 0.4

< 1.5

Frequency range

kHz

20 - 350

20 - 350

20 - 350