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Dry type terminations 110 kV
Technical description
Dry type termination MKBC 126 / MKBC 145 uses for the connection of HV cable lines with overhead lines of substation equipment. Dry type termination are suitable for outdoor and indoor installation with HV XLPE cables 64/110 kV, 76/132 kV with the conductor cross-section up to 2000 mm2.
Marking of outdoor high-voltage dry type cable terminations
Main parts
Insulator:
- premoulded and factory tested silicon rubberinsulator with sheds;
- leakage current collector.
Cable end:
- conductor connector;
- bottom plate;
- support insulators;
- earthling output;
- optical fiber output (optional).
Support:
- composite type support insulator with solid glassfiber rod and silicon rubber sheds;
- composite type support surge arrester with siliconerubber sheds.
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Application |
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| Type | MKBC 126 |
MKBC 145 |
| Maximum system voltage, kV | 126 | 145 |
| Cable conductor cross section range, mm2 | 185÷1600 | |
| Maximum cable overall diameter, mm | 125 | |
| Maximum cable insulation diameter, mm | 91 | |
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Electrical parameters |
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| Phase voltage | 160 kV for 30 min | 190 kV for 30 min |
| Partial discharges | < 5 pC at 96 kV | < 5 pC at 114 kV |
| Impulse withstand voltage (10+/10- impulses) | 550 kV | 650 kV |
| Nominal operating current | limited by cable specification | |
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Climatic characteristics |
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| Operation temperature | -45 +50°С | -45 +50°С |
| Nominal operating current | limited by cable specification | |
| Stress cone routine test | ||
| AC voltage withstand test | 160 kV for 30 min | 190 kV for 30 min |
| Partial discharges | < 5 pC at 96 kV | < 5 pC at 114 kV |
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Technical parameters |
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| Pollution level according to IEC 60815 | IV | IV |
| Maximum allowed load on top connector, N | 1000 | 1000 |