Use the graph of LRA and FLA in Fig. 10—11to explain how the current relay operates
What will be an ideal response?
When power is first applied to the motor, the rotor 15 not turning and the run winding will be drawing locked rotor current, which 15 approximately 5X to l0X of the normal full load current
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Cross-training provides a mechanism to get everyone out of the crime scene and thus prevent contamination of possible evidentiary material.
Answer the following statement true (T) or false (F)
Energized conductors and circuit parts to which an employee may be exposed must be put into an electrically safe work condition before an employee _____.
a. works within the limited approach boundary b. crosses the restricted approach boundary c. works on energized components d. approaches the flash protection boundary
Hydronic heat circulators are centrifugal pumps.
Answer the following statement true (T) or false (F)
A balanced delta-connected load draws 5 kW at a power factor of 0.8 lagging. If the three-phase system has an effective line voltage of 400 V, find the line current.
What will be an ideal response?