Which risk increases when a three-phase power system's delta transformer has one winding fail?

💡 Explanation

When one winding fails in a delta-connected transformer, the remaining two windings must carry the load, causing increased current because the equivalent impedance is reduced, leading to overheating. Therefore, transformer winding overheating results, rather than voltage instability, distortion or tripping, which stem from related, but different faults.

• Which outcome occurs when cascading standard hydraulic breakers without accumulator buffers?
• Which outcome occurs when position feedback fails in a robotic arm using integral control?
• Which outcome arises when a hydraulic actuator extending at maximum speed encounters a sudden, immovable obstruction?
• Which operational error consistently results from Jacobian singularity during robotic arm path planning?
• Which calibration error leads to accumulated deviation in end-effector position across many steps in a robotic arm using iterative inverse kinematics?
• Which outcome develops when a rotary vane vacuum pump operates with prolonged gas ballast valve activation?