Niagara Falls 100.000-Hp. Development
Forfatter: J. Allen Johnson, G.W. Hewitt, W.J. Foster, R.B. Williamson, F.D. Newbury, Louis S. Bernstein, O.D. Dales, W.M. White, Lewis F. Moody, George R. Shepard, John L. Harper
År: 1920
Sider: 46
UDK: 621.209 H Gl. Sm.
DOI: 10.48563/dtu-0000095
Reprinted from Electrical World and Engineering News-Record
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44
Niagara Falls 1 00,000 Hp. Development
FIG. 60-GROUPING OF INSTRUMENTS AND ANNUNCIATORS ARE FEATURES OF CONTROL BOARD AT ECHOTA SUBSTATION
The instruments are arranged so that confusion in reading will be avoided. At the top of the board are the instruments and
below are annunciators which indicate which relays have acted when switches open automatically.
FIG. 61—A—TYPICAL SECTION OF A BUS COMPARTMENT. B—CHOKE COILS IN SERIES WITH INCOMING LINES AT ECHOTA
SUBSTATION. C------------------ONE TYPE OF CIRCUIT BREAKER EMPLOYED AT ECHOTA
FIG. 62—BACK TO BACK WITH THE CONTROL BOARD SHOWN AT TOP ARE THE RELAY PANELS ILLUSTRATED AT LEFT
In the aisle between the control and relay boards are control-wire troughs and test terminals. Normally the
troughs are covered, but one is shown open.