Electrical Metermans Handbook Written And Comp By The Committee On Meters National Electric Light Association

Author : National Electric Association
Publisher : Rarebooksclub.com
ISBN 13 : 9781230156392
Total Pages : 232 pages
Book Rating : 4.1/5 (563 download)

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Download or read book Electrical Meterman's Handbook, Written and Comp. by the Committee on Meters, National Electric Light Association written by National Electric Association and published by Rarebooksclub.com. This book was released on 2013-09 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 edition. Excerpt: ...test, using the consumer's load, inserting the working standards in the low-tension side, but otherwise leaving the connections the same as in service (Figs. 299. 300 and 301). Light load tests may be made by loading the watt-hour meter from the low-tension side of the voltage transformer, if the capacity of the transformer will permit (Fig. 302). Where secondary tests are made at a low power-factor, using the consumer's load, the watt-hour meter should be adjusted to the value of secondary accuracy corresponding to the actual power-factor. If the watt-hour meter has been previously relagged with respect to the high-tension side, this renders the meter correct at all powerfactors. For method of determining the correction curve for use with instrument transformers and watt-hour meters, see Chapter V. CASE I.--Two-wire Watt-hour Meter With Only One Side Circuit Through The Watt-hour Meter. Fig. 261.--Watt-hour Meter Circuit Opened after Being Shunted. Fir.. 262.--Method of Introducing Ammeter for Testing on Consumer's Load. Fig. 263.--Final Connections for Testing on Consumer's Load. Pig. 264.--Connections for Testing with Voltmeter, Ammeter and Lamp Bank, Load Box, or Water Rheostat.-Connections for Testing with Wattmeter, or Rotating Standard and Lamp Bank, Load Box, or Water Rheostat. Fig. 266.--Connections for Testing with Calibrated Resistance and Voltmeter. Fig. 267.--Connections for Testing with Voltmeter, Ammeter, and Storage Battery. Fig. 268.--Connections for Testing cn Alternating Current with Wattmeter or Rotating Standard and Transformer. Note: When using an inverted current transformer or other transformer not adapted to the full voltage the rheostat should be inserted in the high-tension 01 low-current circuit. CASE...