Outdoor AC High Voltage Vacuum Load Break Switch
Description & Application
PVS1-12 vacuum load break switch is suitable for 50Hz three-phase distribution system proving the performance of on-off current and on-off short circuit current. It is suitable for being protection and control in substation and power distribution system of industrial & mining enterprises, but more applicable for the place where the power network has been frequently used.
Technical Parameter & Detail Show
Technical Parameter
| Item | Unit | Data | |
| Rated Voltage | kV | 12 | |
| Rated Current | A | 630 | |
| Rated Short-Time Withstand Current(4s) | kA | 12.5, 16, 20 | |
| Rated Short-Circuit Making Current (Peak) | 31.5, 40, 50 | ||
| Rated Frequency | Hz | 50 | |
| Rated Voltage | V | AC220(80%~110%) | |
| Rated Insulation Level | 1 min Power Frequency Withstand Voltage (Phase to Earth, Phase to Phase/Across the Isolating Distance) | kV | 42/49 |
| Lightning Impulse Withstand Voltage (Peak) (Phase to Earth, Phase to Phase/Across the Isolating Distance) | 75/85 | ||
| Secondary to Earth | 2 | ||
| Rated Gauge Pressure of SF6 Gas | Mpa | 0 Gauge Pressure, Intensity＞93% | |
| Manual Force of Operating Handle | N | 100～400 | |
| The Main Loop Resistance (cable/pipe type) | μΩ | ≤455/≤150 | |
| Switch-On Time | ms | 120～180(220V), ＜400(184V) | |
| Attracting Current (Peak) | A | ＜17 | |
| Bounce Time of Contact Closing Switch | ms | ＜6 | |
| Holding Current | A | 0.35～0.45 | |
| Minimum Switch on Voltage | V | 120～160 | |
| Switch-Off Time | s | ＜1.5 | |
| Different Time of Contact Off | ms | ＜30 | |
| Minimum Maintaining Pull-In Voltage | V | 65～85 | |
| Switch On-Off Time Difference Between Isolating Distance and Vacuum Arc Chamber | ms | ＞10 | |
| Power Loss | W | ＞10 | |
| Breaking Current Open Circuit Test | A | ＞1400 | |
| Tightness Test (for leakage) | Mpa | 0.02 Gauge Pressure,No Leakage | |
| Distance of Vacuum Arcing Chamber Contact | mm | 7～9 | |
| Over Travel of Vacuum Arcing Chamber Contact | mm | 3～3.5 | |
| Isolating Distance | mm | 25～30 | |
| Isolating Distance Over-Travel | mm | 6～13 | |
| Operating Method | Electric/Manual | ||
| Net Weight | kg | 185 | |
The load break switch adopts vacuum arc extinction and SF6 gas as insulator medium with excellent performance of tightness and no-maintenance. The isolation knife of the switch makes parallel connection with three-pole vacuum arc-extinguishing chamber, with good on-off operating simultaneity; and when it is off, there is a reliable isolating breaking point, with the same function to disconnector.
Application Conditions
2 Ambient Temperature: -40℃~+40℃, Daily Temperature Difference: daily temperature change ≤25℃
4 Application Site: No danger of inflammable, explosion, strong chemical corrosion (such as acid, alkali or fume etc.) and violent vibration.
GB 3804
GB/T 11022
GB 311.1
GB 3309
GB 4208
DL/T 593
DL/T 884
GB 8905
GB 50150
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