On a delta wired heater, if a technician reads L1 to L2 as 11 ohms, L1 to L3 as 22 ohms, and L2 to L3 as 11 ohms, what can be concluded?

In a delta configuration, each leg (or line) connects to a heater element, and the resistance readings between these legs can provide insights into the condition of the heater elements. The readings indicate the resistance between different combinations of the lines.

The readings given are:

• L1 to L2: 11 ohms

• L1 to L3: 22 ohms
• L2 to L3: 11 ohms

In a normally functioning delta configuration:

• The resistance between two lines should ideally be equal to the resistance of one element.
• The resistance between one line and the third line (which completes the delta) should be approximately equal to the sum of the resistances of the two elements sharing that line.

Here, the resistance between L1 and L2 is 11 ohms, which suggests one of the elements connecting L1 and L2 is functioning correctly. The readings of L2 and L3 and L1 and L2 being equal at 11 ohms also suggest that one element is functioning between L2 and L3.

However, the reading of 22 ohms between L1 and L3 is significantly higher than expected. In a well-functioning system, the resistance between L1 and L