Automatic electric ltd. Is engaged in manufacturing electrical instruments, power systems and instrument transformers in india. The company has been accredited with an iso 9001 certification. Current transformer testing unit compares & reads the error due to imbalance in signals of test c.T. With reference c.T. And applies necessary proportional signal to nullify the error. The following are its unique features:
1. input is displayed in percentage or actual value, and phase error in centi-radians or minutes.
2. microprocessor controlled
3. self zero check and calibration check
4. digital display of %input, ratio error and phase error
5. manual and auto ranging modes
6. test 5a and 1a ct with either 1a or 5a reference ct
7. rs 232c port and parallel port for printing
8. built in real time clock
9. parameter entry through keyboard
10. single phase type
11. 0 - 9 numeric keys to enter values.
12. 4 digit led display each to display input, ratio error and phase error.
