Study Questions 2

Study Questions 2

Study Questions 2

study questions 2

study questions 2

Study Questions 2 . A selector switch and two-wire pilot device cannot be used to control a large motor directly but rather must be connected to a magnetic starter . Explain why this is true . 2 . Determine the minimum number of wires in each conduit shown in Figure 19–3 . 3 . The circuit shown in Figure 19–4(A) is used to control the operation of a motor . The motor can be operated manually or it can be operated automatically by a pressure switch . The circuit components necessary to construct this circuit are shown in Figure 19–4(B) . In Figure 19–4(B) , dashed lines on the starter indicate factory connections . It is also assumed that the output side of the load contacts are connected to the input side of the overload heaters . Using the schematic in Figure 19–4(A) , draw lines to connect the components in Figure 19–4(B) .

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