Oil Transformer

Model:

Oil Transformer

Type:
Oil Immersed Cooling
Capacity:
10~10,000KVA

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
      ⇒ Medical Equipment
      ⇒ Power supply of devices not at ground potential
      ⇒ To prevent current flow of electrical systems
      ⇒ Shore Power
      ⇒ Laboratory instruments
Energy, Space, Cost Savings!
   
Capacity: 10KVA to 10,000KVA
  1 Phase: 100V, 120V, 200V, 220V, 230V, 240V, 3.3KV, 11KV, 22KV,
   

other voltages are available on order

  3 Phase: 220V, 380V, 440V, 460V, 575V, 3.3KV, 11KV, 22KV,
   

other voltages are available on order

Based on CNS 598, CNS 599 or the National Standards of each country
Manufactured of brand new silicon steel sheet of Shin Nippon steel Standard 50H 400
  (H14). Effectively reduces iron loss, reduces field inrush current and increase efficiency
Heat-resistant Enameled Cooper Wire, minimize its own loss, greatly improve efficiency
Adopt DOPONT Nomex insulating paper as the main insulating materials, strengthen
 

ventilation design to increase the high voltage resisting strength, insulation levels,

and therefore prolong its service life

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.

Short investment return period can be expected (2 ~ 5 years approximately)
Powder Coated Enclosure
Connection Symbol : Dyn1 or Dyn11
  (Other Connection are available to meet requirements)
Insulation Resistance : 100 MΩ
Layer Short Test : 400Hz / 20Seconds / 800V
Withstand Voltage Insulation : AC 2000V
Customization Welcome


 

Type  

Oil Immersed Cooling Type Power Transformer

(Isolation Transformer or Auto Transformer or others)

Phase Single Phase Three Phase
Capacity  (KVA) 10 ~ 2500KVA  10 ~ 10,000KVA
Wire Configuration 1Ø2W or 1Ø3W 3Ø3W (Δ Delta) or 3Ø3W+N (Y Wye)
Voltage

100V, 120V, 200V, 220V, 230V,

240V, 3.3KV, 11KV, 22KV, other

voltages are available on order

220V, 380V, 440V, 460V, 575V,

3.3KV, 11KV, 22KV, other

voltages are available on order

Tapping Range ±2.5%, ±5%
Safety Standards CNS 598、CNS 599 or the National Standards of each country
Insulation 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 ≧98 % at Full Load
Cooling Type Oil Immersed Cooling type, Indoor Application
Dielectric Strength Primary Coil, Secondary Coil – Earth: AC 60Hz 2000V x 1minute
Insulation Resistance

Primary Coil, Secondary Coil – Earth: >100MΩ

(1000V High Resistance Meter)

Operating Circuit Earth:>10MΩ (1000V High Resistance Meter)
Connection DELTA or WYE Connection
Audible Noise < 65dBA at 1meter
Working Temperature  0℃ ~ 40℃
Relative Humidity 0 ~ 90% (non-condensing, 25℃)
Altitude     <3,000 meter Above sea level
• The specifications are subject to change without prior notice.
CUSTOMIZATION WELCOME !

Please contact us, we will welcome the opportunity to review your problems and

provide you with necessary solutions.

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 COMPARISON

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: 3Ø 380V, 400V, 415V or others
Output: 3Ø 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