1. Mr Roberts quotes typical values of capacitor and primary coil resistance of and 0.7 ohm respectively.

2. The power supply (22) includes a primary coil (32).

3. The resistance of the primary coil has been neglected.

4. The transformer has a primary coil and a secondary coil.

5. The machine directly winds the primary coil on the rectangular enclosed voltage transformer core, which is originated by our institute.

6. Then it's time to install the aerial primary coil and connect the aerial.

7. The primary coil terminal and secondary coil terminal are located in the same side of shell belong to the same alternative current (AC) polar.

8. How to find the polarity of the primary coil ?

9. The invention discloses a current transformer, which comprises a primary coil, a secondary coil, an iron core and a shell.

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10. The DC excitation is internally converted to an AC carrier signal which excites the transducer's primary coil.

11. The system can diagnose the fault positions through the measurement of current signals in primary coil at charge and discharge.

12. Outside the car, a pad containing separate coils or "pick-up" coils get coupled magnetically to the primary coil.

13. The induced electromotive force at the secondary coil can be got by changing the flux of the primary coil.