Flexible busbars for transformers with a capacity of 200-630 kVA
Description
Application:
Flexible busbars are intended for use in low voltage chambers of flameproof transformers manufactured by AEG “MEFTA” (GEC Alsthom) – Mikołów with a power of 200-630 kVA.
Flexible busbars are used to make connections between the bushings providing voltage from the flameproof tank of flameproof transformers manufactured by AEG “MEFTA” (GEC Alsthom) – Mikołów of the transformer core, and the lower terminals of the SH-630 / M circuit breaker.
Construction:
Flexible busbars for 200-630 kVA transformers are made of cable, depending on the type 70 mm2 or 95 mm2 with rubber insulation made of flame-retardant rubber.
- The ends of the flexible rails are pressed in copper sleeves.
- Mounting holes are drilled in the pressed ends of the rail (clamp).
- The pressed ends of the rails are galvanized with zinc.
Technical data of flexible busbars for transformers 200-630 kVA:
| Station | 200kVA 525V | 315kVA 525V | 400kVA 525V | 400kVA 1050V | 500kVA 525V | 630kVA 1050V |
| Rated current In | 220 A | 346 A | 440 A | 220 A | 550 A | 346 A |
| Rail cross-section | 2×70 mm2 = (140 mm2) | 2×95 mm2 = (190 mm2) | 2×95 mm2 = (190 mm2) | 2×70 mm2 = (140 mm2) | 3×95 mm2 = (295 mm2) | 2×95 mm2 = (190 mm2) |
| End clamp dimensions | 38x38x13mm | 38x38x13mm | 38x38x13mm | 38x38x13mm | 42x38x13mm | 38x38x13mm |
| Mounting holes diameter | Ø17,5 mm, Ø17,5 mm, | Ø17,5 mm, Ø17,5 mm | Ø17,5 mm, Ø17,5 mm | Ø17,5 mm, Ø17,5 mm, | Ø17,5 mm, Ø21,5 mm or Ø25,5 mm | Ø17,5 mm, Ø17,5 mm, |
| Length per set | 4 pieces x 350 mm 1 piece x 620 mm 2 pieces x 700 mm | |||||
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