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Title: Effect of increased electric loads on primary substation equipment in 100-B, C, D, DR, F, and H areas

Abstract

The loading on the primary transformers which step down the 230 kv transmission voltage to a distribution voltage of 13.8 kv, at 100-B-C, 100-D-DR, 100-F, and 100-H Areas will be increased by the synchronous motors now being installed in those areas under Project CG-558. This report summarizes: The changes in electric loads (both kv and power factor) which will result when the new motors are placed in service and certain older motors are withdrawn from service. Electric loads are tabulated in section 4.0 for each area for present conditions, the planned changes and the post-CG-558 conditions. The reduction of distribution voltage during the starting of individual 4500 hp synchronous motors. Since the synchronous motors will be started across the line as induction motors, the starting current will be high, and at a low power factor. Voltage drops are calculated for the starting of a synchronous motor, with one and then with two transformer banks paralleled. The current-interrupting capacity of switchgear vs. the maximum short-circuit current which could occur with separate transformers and with two primary transformers in parallel.

Authors:
;
Publication Date:
Research Org.:
General Electric Co., Richland, WA (United States). Hanford Atomic Products Operation
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10108346
Report Number(s):
HW-43937
ON: DE93003933
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 5 Jul 1956
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 24 POWER TRANSMISSION AND DISTRIBUTION; HANFORD PRODUCTION REACTORS; POWER SYSTEMS; POWER SUBSTATIONS; TRANSFORMERS; LOAD ANALYSIS; POWER DISTRIBUTION; MODIFICATIONS; MOTORS; ELECTRICAL EQUIPMENT; 220600; 240201; RESEARCH, TEST, TRAINING, PRODUCTION, IRRADIATION, MATERIALS TESTING REACTORS; AC SYSTEMS

Citation Formats

Baker, D S, and McLenegan, D W. Effect of increased electric loads on primary substation equipment in 100-B, C, D, DR, F, and H areas. United States: N. p., 1956. Web. doi:10.2172/10108346.
Baker, D S, & McLenegan, D W. Effect of increased electric loads on primary substation equipment in 100-B, C, D, DR, F, and H areas. United States. https://doi.org/10.2172/10108346
Baker, D S, and McLenegan, D W. 1956. "Effect of increased electric loads on primary substation equipment in 100-B, C, D, DR, F, and H areas". United States. https://doi.org/10.2172/10108346. https://www.osti.gov/servlets/purl/10108346.
@article{osti_10108346,
title = {Effect of increased electric loads on primary substation equipment in 100-B, C, D, DR, F, and H areas},
author = {Baker, D S and McLenegan, D W},
abstractNote = {The loading on the primary transformers which step down the 230 kv transmission voltage to a distribution voltage of 13.8 kv, at 100-B-C, 100-D-DR, 100-F, and 100-H Areas will be increased by the synchronous motors now being installed in those areas under Project CG-558. This report summarizes: The changes in electric loads (both kv and power factor) which will result when the new motors are placed in service and certain older motors are withdrawn from service. Electric loads are tabulated in section 4.0 for each area for present conditions, the planned changes and the post-CG-558 conditions. The reduction of distribution voltage during the starting of individual 4500 hp synchronous motors. Since the synchronous motors will be started across the line as induction motors, the starting current will be high, and at a low power factor. Voltage drops are calculated for the starting of a synchronous motor, with one and then with two transformer banks paralleled. The current-interrupting capacity of switchgear vs. the maximum short-circuit current which could occur with separate transformers and with two primary transformers in parallel.},
doi = {10.2172/10108346},
url = {https://www.osti.gov/biblio/10108346}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jul 05 00:00:00 EDT 1956},
month = {Thu Jul 05 00:00:00 EDT 1956}
}