Insulated - Siemens
Insulated - Siemens
Insulated - Siemens
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Fixed-Mounted Circuit-Breaker Switchgear Type NXPLUS up to 40.5 kV, SF6-<strong>Insulated</strong><br />
Design<br />
Double-busbar panel design<br />
Features<br />
• Stainless-steel module of<br />
circuit-breaker and busbar<br />
• Sendzimir-galvanized sheetsteel<br />
enclosure<br />
• Self-supporting structure<br />
• Electrical connections via<br />
cast-resin insulated, screened<br />
and bolted module couplings<br />
• Low-voltage compartment<br />
can be removed without<br />
interrupting the bus wires<br />
• Degree of protection<br />
– IP 65 for primary parts<br />
– IP 3XD for secondary parts<br />
• Lateral metallic cable ducts<br />
for control cables<br />
• Suitable for connecting<br />
single and three-core cables<br />
as well as bars<br />
• Circuit-breaker module replacement<br />
without gas work<br />
and without interrupting<br />
busbar operation<br />
• Instrument transformers can<br />
be removed without changing<br />
the positions of busbar<br />
and circuit-breaker modules<br />
• Instrument transformers can<br />
be removed without gas work<br />
(located outside the gas compartments)<br />
• Maintenance-free vacuum<br />
circuit-breaker under normal<br />
ambient conditions according<br />
to IEC 60694 / VDE 0670,<br />
Part 1000<br />
1<br />
2<br />
3<br />
4<br />
5<br />
6<br />
NX PLUS<br />
HA35-2401b eps<br />
1 Door of low-voltage compartment<br />
2 Mimic diagram<br />
3 Multifunction protection relay<br />
SIPROTEC 4 type 7SJ61/ 7SJ62<br />
for protection and control<br />
4 EMERGENCY-OFF pushbutton,<br />
mechanical<br />
5 Door to mechanical control board<br />
6 Cover of connection compartment<br />
7 Busbar cover<br />
8 Busbar module (2x), welded,<br />
SF 6 -insulated<br />
9 Rupture diaphragm<br />
10 Three-pole busbar system (2x)<br />
11 Three-position disconnector,<br />
SF 6 -insulated, with the three switch<br />
positions:<br />
CLOSED – OPEN – READY-TO-EARTH<br />
12 Module coupling between busbar<br />
module and circuit-breaker module<br />
13 Circuit-breaker module, welded,<br />
SF 6 -insulated, with integrated cable<br />
connection<br />
14 Vacuum interrupter of circuit-breaker<br />
15 Pressure relief duct<br />
16 Integrated cable connection as<br />
inside cone<br />
17 Low-voltage compartment,<br />
standard: 935 mm high,<br />
option: 1100 mm high<br />
18 Ring-core current transformer,<br />
normal or oval design<br />
19 Manual and motor operating<br />
mechanism of three-position<br />
disconnector<br />
7<br />
8<br />
10<br />
9<br />
11<br />
12<br />
13<br />
14<br />
9<br />
15<br />
16<br />
9<br />
25<br />
31<br />
26<br />
9<br />
27<br />
9<br />
13<br />
31<br />
28<br />
29 23<br />
9<br />
13<br />
16<br />
31<br />
30<br />
Panel with integrated inside cone<br />
Panel with separate inside cone<br />
Panel with outside cone<br />
Panel with integrated inside cone and current<br />
transformers in the cable connection compartment<br />
17<br />
18<br />
19<br />
20<br />
21<br />
22<br />
23<br />
24<br />
24<br />
22<br />
24<br />
22<br />
23<br />
24<br />
14 <strong>Siemens</strong> HA 35.51 · 2003
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