Medium Voltage Fuse Cut-out Disconnecting Switches, operating at maximum Voltage 24 kV.
They are assembled in three versions:
- Normal Insulation with porcelain insulators.
- Heavy Insulation with porcelain insulators.
- Heavy Insulation with HTV silicon rubber insulators.
This single venting type cutout fuses provide a full-fault spectrum protection of 24kV overhead distribution systems whether applied to overhead transformers, capacitors, cables or lines.
'Full fault spectrum protection' means that cutouts interrupt all faults from the lowest current, that will melt the fuse link, to the maximum rated interrupting current, under all realistic transient recovery voltage conditions.
Fuse cutouts employ a single venting 'down and away only', a recovery important feature where exhaust must be kept out of other phases in overbuilt circuits.
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Ambient Temperatures |
|
-150C to +450C |
|
Max. Altitude |
|
1.000 m |
|
Relative Humidity |
|
≤ 95 % |
|
Max. Ice Coating |
|
10 mm |
|
Pollution Level |
|
Moderate to Heavy |
|
Wind Speed |
|
150 km/h |
|
|
|
Normal Insulation |
|
Heavy Insulation |
|
HTV Silicon Heavy Insulation |
|
Type |
LN |
LH |
LSH |
|||
|
Creepage Distance |
400 mm |
530 mm |
530 mm |
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Material |
Porcelaine |
Porcelaine |
HTV Silicone Rubber |
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|
Net Weight |
10 kg |
10,5 kg |
5 kg |
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Nominal Voltage |
|
20 kV |
|
Max. Operating Voltage |
|
24 kV |
|
Nominal Frequency |
|
50 Hz |
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Nominal Current |
|
100 A |
|
Short Circuit Level |
|
250 MVA |
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Interrupting Current |
|
7,2 kA |
|
Power Frequency Withstand Voltage (dry) |
|
60 kV |
|
Power Frequency Withstand Voltage (wet) |
|
60 kV |
|
Lightning Impulse Withstand Voltage (BIL) |
|
125 kV |
|
Impulse Withstand Voltage 1,2/50μsec |
|
125 kV |
The Disconnectors are manufactured to comply to the same Electrical Characteristics regardless the insulator type.
Our products have sucessfully been type tested and have been awarded the relevant type test certificates.
|
LN (Normal Insulation) Base |
431000098 |
|
LH (Heavy Insulation) Base |
431000096 |
|
LN Fuse Case |
430000099 |
|
LH Fuse Case |
430000097 |
|
Rapid Melting Fuse Link 3A (3K) |
441003389 |
|
Rapid Melting Fuse Link 6A (6K) |
441003407 |
|
Rapid Melting Fuse Link 8A (8K) |
441003432 |
|
Rapid Melting Fuse Link 12A (12K) |
441003456 |
|
Rapid Melting Fuse Link 15A (15K) |
441003468 |
|
Rapid Melting Fuse Link 25A (25K) |
441003481 |
|
Rapid Melting Fuse Link 40A (40K) |
441003500 |
|
Slow Melting Fuse Link 10A (10T) |
441003237 |
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Slow Melting Fuse Link 15A (15T) |
441003249 |
|
Slow Melting Fuse Link 20A (20T) |
441003250 |
|
Slow Melting Fuse Link 25A (25T) |
441003262 |
|
Slow Melting Fuse Link 30A (30T) |
441003274 |
|
Slow Melting Fuse Link 40A (40T) |
441003286 |
|
Slow Melting Fuse Link 65A (65T) |
441003316 |
|
Slow Melting Fuse Link 100A (100T) |
441003330 |