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Page Title:
Figure 2-2. Voltage System. 220 to 240V/3 Ph/60 Hz. |
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 TM 55-1905-223-24-17
(2) Three-Wire, Three Phase, 60 Hz (delta connected).
(a) FIGURE 2-2 shows power supply wires entering main electrical panel and going to branch
distribution panel or circuits.
(b) If wires are identified in a 220 to 240/3-phase/60 Hz supply by A, B, and C, as in FIGURE 2-2,
the voltmeter readings should be:
1
A to B-220 volts (10 percent); for a 220 volt requirement.
230 volts (10 percent); for a 230 volt requirement.
240 volts (10 percent); for a 240 volt requirement.
Figure 2-2. Voltage System. 220 to 240V/3 Ph/60 Hz.
2-34
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