Silicon Steel Transformer Core Laminated Iron Steel Core

Model	DKSC-500/20
Low-voltage connection	Y pattern
Product drawing number	5SY.641.500.20.3
Total stack thickness	One hundred and fifty-five millimeters
Low-voltage turns	Thirty turns
Total weight of iron core	One Thond and seventy-eight kilos
Low Voltage	Four hundred volts
No-load loss	Less than one thond, one hundred and ninety-five Watts

Product features
1.No load voltage regulating transformer need to adjust the tap of high-voltage side only when the power is cut off, 
so as to change the ratio of the transformer to regulate the voltage at the low-voltage side.Its regulation range is small, generally within ± 5%, It can only be adjusted once or twice a year.Most transformers in power system are no-load tap transformers.

2.The on load tap changing transformer has a special switch, which can change the tap position without power off (with load).Its voltage regulation range is large, generally more than 15% or even up to 30%, and it can be adjusted  automatically for several times a day.

3.No excitation voltage regulation refers to no-load voltage regulation,which can be adjusted only when the transformer is off.On load tap chaning transformer can change the voltage by changing the tap position when it is on running.

4.OLTC switch has the advantages of frequent on-off, no spark and long service life.The traditional trigger circuit of power electronic switch has the problem of electrical isolation.The application of optical fiber communication technology to the medium and high voltage trigger control system can effectively solve the problem of high and low voltage electrical isolation.

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