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b. Handbook tests. These are not standard indus­try tests, but have been recommended by facility engineers as a method of determining the capacitor condition.

(1) Terminal-to-terminal voltage test. The pur­pose of this test is to determine whether a capacitor unit is functioning in accordance with its rating. Capacitor units found to be internally defective are more economically replaced than repaired.

(a) Procedure. With the capacitor unit insu­lated from ground, apply a terminal-to-terminal voltage equal to the rated capacitor voltage, in ac­cordance with figure 13-1. Voltage should be ap­plied for one minute with the test circuit fused. Fuse rating should be that recommended for the capacitor, or if that size is not readily available, one rated twice the normal load current.

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