What is the correct current value when the selector is in the 20 mA position?

When the selector is in the 20 mA position, it indicates that the system is set to read or expect a current of 20 mA as its reference or measurement point. In many scenarios relating to current measurement or the functionality of control systems, the actual current flowing through the circuit may not always align perfectly with the expected value.

The answer of 14.3 mA suggests that while the selector indicates a range or expected current of 20 mA, the actual measurement taken is 14.3 mA. This indicates that the system is functioning but may be experiencing some level of deviation from the nominal value. Deviation could occur due to resistance in the circuit, calibration errors, or variances in the devices connected to the substation system.

Each of the alternatives presents a specific current level that may relate to different conditions or configurations in the system. However, when the selector is specifically set to 20 mA, the reading you would expect to interpret is actually reflective of a real-time current measurement observed under operational conditions. In this case, 14.3 mA could indicate the operational state of the device or system while under the attempt to pull or measure up to the 20 mA standard.

Understanding these