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DISCONNECTORS
: LTH
SERIES
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FEATURES
- 4kV voltage
system;
- Thermal current
800/1500 A per pole;
- Electromotorized or pneumatic control;
- Contact technology based on multi-finger jaws,
which allow to withstand consistent dynamic currnts
(up to 220kA);
- Reduced space envelopes and weights;
- Mechanical life > 100,000 operations.
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FLEXIBILITY
- Poles can
be connected in parallel to obtain higher
thermal currents on single contact (up to 6,000 Amps)
- On D versions, poles can be reversed forming NC poles,
or single-double pole changeover without additional structure;
- On D versions, additional upper structure is available to create
2-3-4 changeover poles;
- 20 combinations
are available with more than 130 pole configurations;
- Several options available for control circuits and for auxiliary
contacts connection;
- Integrated solutions: multiple switches are assembled
on frame with customised busbar system and integrated control circuits.
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CONTROL
CIRCUIT INFORMATION
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Pneumatic
disconnector:
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| Rated operational
pressure: |
0.55 Mpa |
| Min/Max
air pressure: |
0.35/0.7
Mpa |
Max
air consumption for each closing
or opening operation: |
0.16
litres |
| Max closing
time: |
436 ms |
| Max opening
time: |
258 ms |
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Electromotorized
disconnector:
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| Motor voltage: |
24,110
Vdc |
| Working
range at 75°C: |
±30% |
Max power
consumption at rated voltage
and 20°C |
=70W |
| Closing
time: |
3s |
| Opening
time: |
3s |
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