Modular units
Modular units
Modular units
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Characteristics of<br />
the functional <strong>units</strong><br />
AMTED398078EN.indd<br />
DE53546<br />
DE59718<br />
Functional <strong>units</strong> selection<br />
MV metering<br />
CM<br />
Voltage transformers unit for network<br />
with earthed neutral system<br />
Electrical characteristics<br />
kA Ik/1s<br />
25<br />
20<br />
16<br />
12.5<br />
Ir = 50 A<br />
7.2 12 17.5 24 36<br />
Basic equipment:<br />
b disconnector and earthing switch<br />
b three-phase busbars<br />
b operating mechanism CS<br />
b LV circuit isolation switch<br />
b LV fuses<br />
b three 6.3 A UTE or DIN type fuses<br />
b 150 W heating element for 36 kV<br />
b three-voltage transformers<br />
(phase-to-earth)<br />
DE53547<br />
Ur<br />
kV<br />
CM2<br />
Voltage transformers unit for network<br />
with insulated neutral system<br />
b two voltage transformers<br />
(phase-to-phase)<br />
Optional accessories:<br />
b auxiliary contacts<br />
b mechanical signalling and auxiliary contact for blown fuses<br />
b 1250 A three-phase upper busbars<br />
b cable connection by the top for 24 kV (no internal arc withstand if selected)<br />
b 50 W heating element for 24 kV<br />
b 630 A three-phase upper busbars for severe operating conditions for 24 kV<br />
b enlarged low-voltage control cabinet for 24 kV<br />
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