Type: | Type MZ On-Load Tap Changer |
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Certification: | ISO9001 |
Brand: | Wukai |
Transport Package: | Composite Wood Crating |
Origin: | China |
Samples: |
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Customization: |
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Serial No. | Category | ||||||
1 | MZ-III600 | MZ-I600 | MZ-I800 | MZ-I1200 | MZ-I1500 | ||
2 | Max. rated through-current(A) | 600 | 600 | 800 | 1200 | 1500 | |
3 | Rated frequency (Hz) | 50 | |||||
4 | No. of phases and connections | Three-phase Y-connection | Single-phase arbitrary connection | ||||
5 | Max. step voltage (V) | 3300 | |||||
6 | Rated capacity (kVA) | 1500 | 1980 | 2640 | 3500 | 3500 | |
7 | Short-circuit capacity (kA) | Thermal stability (three seconds RMS) | 8 | 8 | 16 | 24 | 24 |
8 | Dynamic stability (peak) | 20 | 20 | 40 | 60 | 60 | |
9 | No. of working positions | The slot wheel is divided into 10, 12, 14, 16, and 18 gears, without a pole selector maximum of 18, with a polarity selector max. 35. | |||||
10 | |||||||
11 | Tap changer insulation level | Unit (kV) | Insulation level | ||||
12 | 35 | 60 | 110 | 220 | |||
13 | Max. working voltage | 40.5 | 72.5 | 126 | 252 | ||
14 | Power frequency test voltage (1min) | 85 | 140 | 230 | 460 | ||
15 | Impulse test voltage (1.2/50) |
200 | 350 | 550 | 1050 | ||
16 | Tap selector | 4 sizes by insulation level, numbered A, B, C, D | |||||
17 | Mechanical life | Not less than 800,000 times | |||||
18 | Electrical life | Not less than 100,000 times | |||||
19 | Toggle switch mailbox | Working pressure | 3×104Pa | ||||
20 | Sealing property | 6×104Pa, No leakage for 24 hours | |||||
21 | Overpressure protection | Bursting cap 2x105Pa | |||||
22 | Keep relay | Rectified oil speed 1.0m/s earth 10% | |||||
23 | Discharge volume | About 190~270L | |||||
24 | Filling volume | About 125~190L | |||||
25 | Weight | About 260~280kg | |||||
26 | Fitted motor-drive unit | DQB |
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