31.12.2012 Views

Modular units

Modular units

Modular units

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

DE53538<br />

DE59715<br />

Characteristics of<br />

the functional <strong>units</strong><br />

DM1-W<br />

Withdrawable single-isolation<br />

circuit breaker unit<br />

Electrical characteristics<br />

kA Ik/1s & Isc<br />

25<br />

20<br />

16<br />

12.5<br />

Ir = 630 - 1250 A<br />

Ir = 400 - 630 - 1250 A<br />

Ir =<br />

1250 A<br />

7.2 12 17.5 24 36<br />

Basic equipment:<br />

b SF1 withdrawable circuit breaker<br />

b disconnector and earthing switch<br />

b three-phase busbars<br />

b circuit breaker operating mechanism RI<br />

b disconnector operating mechanism CS<br />

b voltage presence indicator<br />

b three CTs<br />

b auxiliary contacts on circuit breaker<br />

b 150 W heating element for 36 kV<br />

Ur<br />

kV<br />

DE53539<br />

DE59226<br />

Functional <strong>units</strong> selection<br />

SF6 type circuit breaker protection<br />

DM1-Z<br />

Withdrawable single-isolation CB unit<br />

Outgoing line on right<br />

kA Ik/1s & Isc<br />

25<br />

20<br />

16<br />

12.5<br />

b mechanical interlocking between circuit breaker and disconnector<br />

b earthing switch operating mechanism CC<br />

b connection pads for dry-type cables<br />

b downstream earthing switch 25 kA rms making capacity<br />

Version:<br />

b LPCT (only with Sepam series 20, 40 and 80)<br />

Optional accessories:<br />

b cubicle:<br />

v auxiliary contacts on the disconnector<br />

v protection using Sepam programmable electronic unit<br />

v three voltage transformers<br />

v key-type interlocks<br />

v connection enclosure for cabling from above for 24 kV<br />

v 50 W heating element for 24 kV<br />

v enlarged low-voltage control cabinet for 24 kV<br />

v 1250 A three-phase upper busbars at Ir 630 A<br />

v 630 A three-phase upper busbars for severe<br />

operating conditions for 24 kV<br />

v surge arresters (only for 630 A and 24 kV)<br />

Ir = 1250 A<br />

7.2 12 17.5 24<br />

b three-phase busbars<br />

b circuit breaker:<br />

v motor for operating mechanism<br />

v release <strong>units</strong> (coil)<br />

v operation counter on manual<br />

operating mechanism<br />

DM2-W<br />

Withdrawable double-isolation CB unit<br />

Outgoing line on right<br />

52 AMTED398078EN.indd<br />

Ur<br />

kV<br />

DE59702<br />

DE59716<br />

kA Ik/1s & Isc<br />

25<br />

20<br />

16<br />

12.5<br />

Ir = 1250 A<br />

Ir =<br />

630 - 1250 A<br />

36<br />

Ur<br />

kV<br />

b cubicle:<br />

v auxiliary contacts on the disconnector<br />

v key-type interlocks<br />

v protection using Sepam<br />

programmable electronic unit<br />

b circuit breaker:<br />

v motor for operating mechanism<br />

v operation counter on manual<br />

operating mechanism<br />

v opening and closing shunt trips

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!