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This package provides a step-by-step procedure for testing the most common overcurrent protection applications: Instantaneous Overcurrent (50), Time Overcurrent (51), and Directional Overcurrent (67). Each chapter follows a logical progression to help understand why overcurrent protection is used and how it is applied. Testing procedures are described in detail to ensure that the overcurrent protection has been correctly applied. Go to http://valenceonline.com/book.php for more information. Note: Lulu e-books are digital only. No printing is allowed.