Modular units

DE53531
DE59715
Characteristics of
the functional units
DM1-A
Single-isolation
disconnectable CB unit
Electrical characteristics
kA Ik/1s & Isc
25
20
16
12.5
Ir = 630 - 1250 A
Ir = 400 - 630 - 1250 A
Ir =
1250 A
7.2 12 17.5 24 36
Basic equipment:
b SF1 disconnectable circuit breaker
b disconnector and earthing switch
b three-phase busbars
b circuit breaker operating mechanism RI
b disconnector operating mechanism CS
b voltage presence indicator
b three CTs
b auxiliary contacts on circuit breaker
b mechanical interlocking between circuit breaker and disconnector
b 150 W heating element for 36 kV
b connection pads for dry-type cables
b downstream earthing switch 2 kA rms making
capacity at 630 A and 25 kA rms making capacity
at 1250 A
Version:
b LPCT (only with Sepam series 20, series 40, series 80)
Optional accessories:
b cubicle:
v auxiliary contacts on the disconnector
v protection using Sepam programmable electronic unit
v three voltage transformers
v key-type interlocks
v 1250 A three-phase upper busbars at Ir 630 A
v cable connection by the top for 24 kV (no internal arc
withstand if selected)
v surge arresters
Ur
kV
DE53532
Functional units selection
SF6 type circuit breaker protection
DM1-D
Single-isolation
disconnectable CB unit
Outgoing line on right
b three-phase bottom busbars
DM1-D
Single-isolation
disconnectable CB unit
Outgoing line on left
50 AMTED398078EN.indd
DE53533
DE59213
kA Ik/1s & Isc
25
20
16
12.5
Ir = 630 - 1250 A
Ir = 400 - 630 - 1250 A
7.2 12 17.5 24
b SFset circuit breaker disconnectable (only for 400-630 A performances and 24 kV)
v 630 A three-phase upper busbars for severe operating conditions for 24 kV
v enlarged low-voltage control cabinet for 24 kV
v 50 W heating element for 24 kV
v Connection pads for two dry-type single-core cables for 36 kV
Ur
kV