Order

The specifications shall be offered to give our company an order form for the OLTC, the specifications shall be included the information of the transformer and the OLTC as follows:

1 Rated power of the transformer;

2 Rated voltage of the transformer;

3 Rated through-current of the transformer;

4 Maximum rated through-current of the OLTC;

5 Number of service tapping positions;

6 Step voltage (or tapping step);

7 Regulating mode: Linear, Reverse and Coarse;

8 Insulation level of tap winding to earth (power frequency and impulse voltage);

9 Insulation level of tap winding between the first and last tap (power frequency and impulse voltage);

10 Insulation level of tap winding between any two adjacent taps (power frequency and impulse voltage);

11 Insulation level of tap winding between steps (power frequency and impulse voltage);

12 The winding of transformer connection: Star or Delta or Special;

13 Installation mode: The standard type tank or the bell type tank;

14 Length of the cable for connection between the motor drive unit and the tap position indicator or between the OLTC and the controller;

15 If the product is special, please give the more of your information.

For more contents see International Standard IEC 60214-2(IEC542) "APPLICATION GUIDE FOR ON-LOAD TAP-CHANGERS" and our webpage Information please.

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