GEH-764A8
Polyphase Switchboard WaHhour Meters
12
SCHEMATIC CONNECTION DIAGRAMS
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(a) Types DS-19 and DS-34,
3-wire, 2- and 3 -phase,
and 4-wire, 2-phase
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(b) Types DS-20 and DS-35,
4-wire, 3-phase
Fig. 13. Internal connections (front views)
Sour-c:c
load
With Current Transformers
Pot&ntial
indiutinq
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Auxiliary
windinq
(a)
T ypes D S - 1 9 , D S-34,
DS-38, and DS-40
(b) Types D S - 2 0, DS-35,
DS-39, and DS-41
Fig. 14. Showing connections of.open potential
circuit indicating lamps to auxiliary potential
windings (front views)
Source
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Potcnt•el
Transformer-
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Currcr'lt
Tran!>formcr
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load
With Current and Potential Transformers
NOTE:
For 3-wire, 2-phase circuits, wire
"A"
should be the common return.
For 3-wire single-phase circuits, wire
"A"
should be the neutral.
Fig. 15. Connections for Types DS-19 and DS-34, 3-wire, single-,
2-,
or 3-phase (back views)
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