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Dry Type Power Transformer

Model:

Dry type Transformer

Type:
Dry Type
Capacity:
1Phase 1~150KVA;
3Phase 5~500KVA

Made in

Taiwan, ROC

Power Transmission and Distribution Isolation Transformer
Voltage Step UP or Step Down Electrical Isolation
Generator Transformer Safety in electronics testing and servicing
Auto Transformer Medical Equipment
Audio Power supply of devices not at ground potential
Railways To prevent current flow of electrical systems
    Shore Power
    Computers
    Laboratory instruments
 Humidity-resistant, Compact & Safe!
   
Capacity : 1Phase 1~150KVA; 3Phase 5~500KVA
Type:
 

A Class Dry Type Transformer (Heat-resistance: 105℃)

B Class Dry Type Transformer (Heat-resistance: 130℃)

F Class Dry Type Transformer (Heat-resistance: 155℃)

H Class Dry Type Transformer (Heat-resistance: 180℃)

Scientific rationalization design.
  Allowing control of voltage variation rate within 1% - 1.5%
Energy Saving
 

The iron core is made of high permeability original silicon steel sheets

to greatly reduce Iron loss (no-load loss). Copper loss (load loss).

Improvements have been made on coil structure to reduce Copper loss

(load loss) sharply.

By reducing copper and iron losses, the purpose of "energy saving" can

be realized.

Space Saving
 

The losses incurred during operation have been lessened, the size of

radiator in the transformer can be relatively cut down. Consequently

the space required for installation of this special transformer can be

reduced.

Electricity Cost Saving
 

Due to sharp decrease in full losses (by as much as 40% ~ 55%), a huge

cut down effect on annual electricity cost can be observed.

Other custom-design Dry Type Transformer is available on request


 

Type 

Dry Type Power Transformer

(Isolation Transformer or Auto Transformer or others)

Phase Single Phase Three Phase
Capacity  (KVA) 1 ~ 150KVA 5 ~ 500KVA
Wire Configuration 1Ø2W or 1Ø3W 3Ø3W (ΔDelta) or 3Ø3W+N (Y Wye)
Primary Voltage

110V System:

100V,110V,115V,120V,

220V System:

200V,220V,230V,240V

(Other Voltage on request)

220, 380, 440, 460, 575V

(Other voltage on request)

Wire Configuration 1Ø2W or 1Ø3W 

3Ø3W (ΔDelta) or

3Ø3W+N (Y Wye)

Secondary Voltage

110V System:

100V,110V,115V,120V,

220V System:

200V,220V,230V,240V

(Other Voltage on request)

220, 380, 440, 460, 575V

(Other voltage on request)

Voltage Variation Rate 1% ~ 1.5%
Frequency 50 / 60Hz
Efficiency AC-AC >/= 95%
Insulated Degree A Class Dry Type Transformer (Heat-resistance: 105℃)
B Class Dry Type Transformer (Heat-resistance: 130℃)
F Class Dry Type Transformer (Heat-resistance: 155℃)
H Class Dry Type Transformer (Heat-resistance: 180℃)
Insulation Resistance DC500V >/= 200MΩ
Withstand Voltage Insulation AC 2000V
Impedance Resistance 2 ~ 5% 50 / 60Hz
Enclosure IP Degree   IP-20
Cooling Type Natural or Air forced Cooling
Temperature 0℃ to 50℃
Humidity 0 to 90%, non-condensing
Noise Level <60dB at 1meter
Option Built into A Cubicle w/ Casters,
Input Terminal Block & Output Terminal Block,
Input Circuit Breaker, Input Voltmeter, Power ON Indicator, Fans

 *  We reserve the right to change specifications without prior notice.
 

Customization Welcome
Enclosure with / or without Casters
Power ON Indicator
Terminal Block
Circuit Breaker
Fan
BASIC PRINCIPLES
 
A transformer is an electrical equipment that transfers energy by Inductive Coupling between its winding circuits. A varying current in the primary winding creates a varying magnetic flux in the transformer's core and thus a varying magnetic flux through the secondary winding. This varying magnetic flux induces a varying electromotive force (emf) or voltage in the secondary winding. Transformers can be used to vary the relative voltage of circuits or isolate them, or both.

    


 

PRINCIPLE FEATURES COMPARISION

BETWEEN AUTO TRANSFORMER AND

ISOLATION TRANSFORMER

 

  Auto Transformer Isolation Transformer
Circuit Diagram 

Descriptions

Auto Step Down transformer.

An electrical transformer with

only one winding

The primary and secondary are not

connected by conductors, but only by

Induction

 

Transformer in which part of the

winding is common to both

primary and secondary circuits

Primary purpose is to isolate circuits.
Winding

One, single coil acting on itself.

Same winding act as both the

primary and secondary sides of

the transformer

Dual-winding transformers
Function Step up or step down voltages

1. Galvanic isolation,

2. Used to protect against

sensitive devices,

3. Transfer power between two

circuits which must not be connected.

4. Withstand a high voltage between

windings

5. For safety

Efficiency Higher Lower
Voltage Drop Smaller Bigger
Connection Y/YO or Δ/Δ Y/YO, Y/Δ, Δ/YO or Δ/Δ
Size Smaller Bigger
Weight Lighter Heavier
Cost Cheaper Higher
Safety Worse Better
Noise Reduction Worse Better
Disadvantage Not providing electrical isolation Expensive, electrical isolation

 


 

ELECTRICAL CHARACTERISTICS COMPARISON

BETWEEN AUTO TRANSFORMER AND

ISOLATION TRANSFORMER

  Auto Transformer Isolation Transformer
Nominal Voltage < 600V. Customization welcome
Input: 3O 380V, 400V, 415V or others
Output: 3O 380V, 400V, 415V or others
Connection Y/YO or Δ/Δ
Insulated Degree A Class Dry Type Transformer (Heat-resistance: 105℃)
B Class Dry Type Transformer (Heat-resistance: 130℃)
F Class Dry Type Transformer (Heat-resistance: 155℃)
H Class Dry Type Transformer (Heat-resistance: 180℃)
Efficiency >/= 97%
Voltage Variation Rate 1% ~ 1.5%
Phase Voltage Difference </= 1%
Frequency 50 / 60Hz ±5%
Withstand Voltage Insulation AC 2000V
Noise Level at 1m (c/w Fan)  </= 50dB (No Load) ; </= 60dB (Loading)
Cooling Type Natural or Air forced Cooling
Temperature  0℃ to 50℃
Humidity 0 to 90%, non-condensing