The Relay Testing Handbook was created for relay technicians from all backgrounds and providesthe knowledge necessary to test most of the modern protective relays installed over a widevariety of industries. Basic electrical fundamentals, detailed descriptions of protective elements,and generic test plans are combined with examples from real life applications to increase yourconfidence in any relay testing situation. A wide variety of relay manufacturers and models areused in the examples to help you realize that once you conquer the sometimes confusing andfrustrating man-machine interfaces created by the different manufacturers, all digital relays usethe same basic fundamentals and most relays can be tested by applying these fundamentals.This package provides a step-by-step procedure for testing the most common differential protectionapplications used by a variety of manufacturers. Each chapter follows a logical progression to helpunderstand why differential protection is used and how it is applied. Testing procedures are describedin detail to ensure that the differential protection has been correctly applied. Each chapter uses thefollowing outline to best describe the element and the test procedures.1. Application2. Settings3. Pickup Testing4. Timing Tests5. Tips and Tricks to Overcome Common ObstaclesWe will review techniques to test differential relays with 3 or 6 channels so that readers can test nearlyany differential application with any modern test set.

The Manual of Tests and Criteria contains criteria, test methods and procedures to be used for classification of dangerous goods according to the provisions of Parts 2 and 3 of the United Nations Recommendations on the Transport of Dangerous Goods, Model Regulations, as well as of chemicals presenting physical hazards according to the Globally Harmonized System of Classification and Labelling of Chemicals (GHS). As a consequence, it supplements also national or international regulations which are derived from the United Nations Recommendations on the Transport of Dangerous Goods or the GHS. At its ninth session (7 December 2018), the Committee adopted a set of amendments to the sixth revised edition of the Manual as amended by Amendment 1. This seventh revised edition takes account of these amendments. In addition, noting that the work to facilitate the use of the Manual in the context of the GHS had been completed, the Committee considered that the reference to the "Recommendations on the Transport of Dangerous Goods" in the title of the Manual was no longer appropriate, and decided that from now on, the Manual should be entitled "Manual of Tests and Criteria".