12KV vacuum Switchgear
Baoguang Type and Name: XGN68-12 Indoor vacuum switchgear
Main application:it is mainly used in ring network power supply system or radiation power supply system with double power sources.It can also be installed in box type substation.
Main Technical Data of the XGN68-12 Indoor vacuum switchgear|
| 1 | Rated Voltage | kV | 12 |
| 2 | Rated Frequency | Hz | 50 |
| 3 | Rated current of main bus-bar | A | 630/400 |
| 4 |
| Rated Short Time Withstand Current | Main circuit | kA | 20 |
| Earthing circuit |
| 5 | Rated duration of short circuit | Main circuit | s | 3 |
| Earthing circuit | 2 |
| 6 | Rated Peak Withstand Current | Main circuit and Earthing Switch | kA | 50 |
| Earthing circuit | 43.3 |
| 7 | Rated Short Circuit Making Current | Main circuit and Earthing Switch | kA | 20 |
| Earthing circuit | 17.4 |
| 8 | Rated takeover current | A | 3150 |
| 9 | The largest rated current of fuse | A | 125 |
| 10 | Short circuit breaking current of fuse | kA | 31.5 |
| 11 | Mechanical endurance of load-breaking switch | Cycle | 10000 |
| 12 | Rated Power Frequency Withstand Voltage | Pole to pole ,pole to earth | kV | 42(1min) |
| Between Fractures | kV | 48(1min) |
| 13 | Lighting impulse withstand voltage(peak) | Pole to pole ,pole to earth | kV | 75 |
| Between Fractures | kV | 85 |
| 14 | Main circuit resistance(excluding current transformer) | | 150 |
| 15 | The degree of protection | IP2X |
Main technical parameters of FZN58-12 type vacuum load breaking switch(Table2)No.NameUnitData
| 1 | Rated Voltage | kV | 12 |
| 2 | Rated Current | A | 630/400 |
| 3 | Rated Frequency | Hz | 50 |
| 4 | Rated active load breaking current | A | 630/400 |
| 5 | Rated closed-loop breaking current | A | 630/400 |
| 6 | Rated breaking current of cable charging | A | 10 |
| 7 | Rated Breaking Capacity of No-Load Voltage Transformer | kVA | 1250 |
| 8 | Rated Short Time Withstand Current | kA | 20 |
| 9 | Rated duration of short circuit | s | 3 |
| 10 | Rated Peak withstand Current | kA | 50 |
| 11 | Rated Short-circuit Making Current | kA | 50 |
| 12 | Rated Power Frequency Withstand Voltage | Phase to ground, Between phases | kV | 42 |
| Between Fractures | 48 |
| 13 | Lighting impulse withstand voltage(peak) | Phase to ground, Between phases | kV | 75 |
| Between Fractures | 85 |
| 14 | Mechanical endurance | Cycle | 10000 |
| 15 | Main circuit resistance | | 40 |
Main technical parameters of FZN58-12 type load breaking switch-fuse combination(Table3)No.NameUnitData
| 1 | Rated Voltage | kV | 12 |
| 2 | The largest rated current of fuse | A | 125 |
| 3 | Rated Frequency | Hz | 50 |
| 4 | Rated takeover current | A | 3150 |
| 5 | Trip opening time of striker | s | 0.06 |
| 6 | Rated short circuit breaking current | kA | 31.5 |
| 7 | Rated Short-circuit Making Current | kA | 80 |
| 8 |
| Rated Power Frequency Withstand Voltage | Phase to ground, Between phases | kV | 42 |
| Between Fractures | 48 |
| 9 | Lighting impulse withstand voltage(peak) | Phase to ground, Between phases | kV | 75 |
| Between Fractures | 85 |
| 10 | Mechanical endurance | Cycle | 10000 |
Option for fuse of combination(Table4)| Rated VoltagekV | Rated capacity of voltage transformer(kVA) |
| 50 | 75 | 100 | 125 | 160 | 200 | 250 | 315 | 400 | 500 | 630 | 800 | 1000 | 1250 | 1600 | 2000 |
| The option of use(the standard value is ampere) |
| 3.6 | 25 | 25 | 40 | 40 | 63 | 63 | 63 | 80 | 100 | 100 | 160 | | | | | |
| 7.2 | 16 | 16 | 25 | 25 | 25 | 40 | 40 | 63 | 63 | 63 | 80 | 100 | 100 | 160 | | |
| 12 | 10 | 10 | 16 | 16 | 16 | 25 | 25 | 25 | 40 | 40 | 63 | 63 | 63 | 80 | 100 | |
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