HV Disconnecting Switch Type ST DS Double side break 115kV
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Description
Rated voltage | Ur (kV) | 72.5 | 123 | 145 | 170 | 245 | 300 | 362 | 420 | 550 | ||
Rated power frequency withstand voltage | TE | Ud (kV) | 140 | 230 | 275 | 352 | 395 | 460 | 380 | 450 | 520 | 620 |
AID | Ud (kV) | 160 | 265 | 315 | 375 | 460 | 530 | 435 | 520 | 610 | 800 | |
Rated lightning impulse withstand voltage | TE | Up(kV) | 352 (IEC) 350 (ANSI) |
550 (IEC) 550 (ANSI) |
650 (IEC) 650 (ANSI) |
750 (IEC) 750 (IEC) |
950 (IEC) 900 (ANSI) |
1050 (IEC) 1050 (ANSI) |
1050 (IEC) - |
1175 (IEC) - |
1425 (IEC) 1300 (ANSI) |
1500 (IEC) 1800 (ANSI) |
AID | Up(kV) | 375 | 630 | 750 | 860 | 1050 | 1200 | 1050 (+170) |
1175 (+205) |
1425 (+240) |
1550 (+315) |
|
Rated switching impulse withstand voltage | TE | Us(kV) | - | - | - | - | - | - | 850 | 950 | 1050 | 1175 |
AID | Us(kV) | - | - | - | - | - | - | 700 (+245) |
800 (+295) |
900 (+345) |
900 (+450) |
TE : To Earth
AID : Across the Isolating Distance
Rated permanent | Ir (A) | Up to 4000 AIEC / ANSI |
Rated shot-time Withstand current | Ik (kA) | Up to 75 kA / 3s |
Rated peak withstand current | Ip (kA) | Up to 190 kA |
Dimension(mm) | A | 1280 | 1780 | 2200 | 2200 | 2880 | 3200 | 3200 | 4200 | 4900 | 5500 | |
B | IEC | 770 | 1220 | 1500 | 1700 | 2100 | 2300 | 2300 | 2900 | 3350 | 3650 | |
ANSI | 762 | 1143 | 1372 | 1575 | 2032 | 2337 | - | - | 3099 | 3861 | ||
C | IEC | 970 | 1420 | 1720 | 1920 | 2370 | 2570 | 2570 | 3220 | 3670 | 3970 | |
ANSI | 962 | 1343 | 1592 | 1795 | 2302 | 2607 | - | - | 3419 | 4181 | ||
D | 900 | 1400 | 1800 | 1800 | 2300 | 2800 | 2800 | 3540 | 4240 | 4840 | ||
E | 170 | 170 | 270 | 270 | 270 | 270 | 270 | 340 | 340 | 340 | ||
F | - | - | - | - | - | 270 | 270 | 340 | 340 | 340 | ||
G | 4 x 18 | 4 x 18 | 4 x 18 | 4 x 18 | 4 x 18 | 8 x 18 | 8 x 18 | 8 x 18 | 8 x 22 | 8 x 22 |
General
C isolators are double-break disconnecting switches. They are suitable for outdoor installation, in all climates, and are capable of withstanding considerable stresses since they have been designed for working in the worst operating conditions, assuring the greatest stability and reliability. In order to meet different requirement, STC isolators can be manufactured according to the most important international standards (CEI, IEC, BS, ANSI)
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HV Disconnecting Switch Type ST DS Double side break 115kV
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