Dry type voltage transformer, single and phase transformer Product
1. There are air flows between coil' s layer to layer and between
coil to core, thus heat escapes quickly, and temperature rises
2. There are no flammable insulating material on the coil surface
and between coil layer and layer to avoid the fire hidden danger.
3. Small volume, light weight and good workmanship.
4. After vacuum pressure impregnating, the whole transformer is
moisture proof and mildew proof.
5. Insulation class F or H.
6. Lower audio-noise.
We produce various low voltage dry type iron core transformers:
1. Isolation transformer
Used for safety isolation, lower leakage current, power conditioner
for eliminating 3rd harmonic wave and common mode interference
2. Coupling transformer
Applied for Active compensation of harmonic currents as output
coupling to network.
3. Frequency variable and voltage variable VFVV inverter output
(40~600Hz)(0~400V). Used as output transformer for UPS, EPS. It has
leakage inductance(1~5mH) as filter choke for 10~20KHz, and
isolation output for 40~650Hz.
4. Buck & Boost transformer (two coils type)
Used for power voltage increase or decrease, and has isolation.
5. Auto-transformer (one coil tap)
Used for power voltage increase or decrease. It is more energy
saving than (4) but has no isolation.
6. Voltage regulator (one coil with contactor)
With patented wire drive and roller brush, it has long life and
wide range voltage variable easy to control and maintenance, high
efficiency with no wave and phase distortion. Combined with
controller it can be integrated in Automatic Voltage
7. Special transformer
7.1 Constant Voltage Transformer(CVT)
See detailed description later
7.2 Vector transformer
Applying the phase vector of the transformer, it is three phase
input with one phase line voltage output or one phase Y-voltage
7.3 Inductance variable transformer
It is need for continuously reactive power compensation.
7.4 Shifter transformer
The phase angle of output three phase can variable shift from
The specifications of the transformers as input and output,
capacity, voltage, current, frequency(40~650Hz), temperature rise,
insulation class and noise and so on can be custom designed.