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Papua New Guinea FZW28-12F Primary and secondary fusion column mounted vacuum load switch
Category:
Papua New GuineaElectrical Components
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Product Description
Overview:
FZW28F-12 outdoor boundary vacuum load switch (FFK for short) is used in pole-mounted occasions and has manual and electric operation functions. The switch body is maintenance-free and uses vacuum arc extinguishing and SF6 gas as the insulating medium. This product complies with the following standards: GB3804-2004 3.6 ~ 40.5kV high-voltage AC load switch GB/T11022 Common technical requirements for high-voltage switchgear and control equipment standards This manual describes the structure, function and installation and commissioning methods of outdoor boundary vacuum load switches. FZW28F-12 outdoor boundary vacuum load switch has fault detection, protection, control and communication functions. It is installed on a 10kV line and can realize the self-cutting of single-phase grounding faults and automatic isolation of phase-to-phase short-circuit faults. It is suitable for the T-connection or user end of the user incoming line of the 10kV distribution line, and can also be used for other branch line connections that meet the requirements.
Outline and installation size (mm):
Working Conditions:
- The upper limit of ambient air humidity shall not exceed 40℃, and the lower limit shall not exceed -45℃;
- The wind speed shall not exceed 35m/s;
- The altitude shall not exceed 1000m;
- Environmental humidity: monthly average relative humidity shall not exceed 90%; daily average relative humidity shall not exceed 95%;
- Ice thickness shall not exceed 10mm;
- The installation site shall be a place without flammable, explosive, chemical corrosion and frequent severe vibration;
- Neutral point grounding method: neutral point not grounded, neutral point grounded through arc suppression coil, neutral point grounded through small resistance.
Rated Parameters of Switchgear:
| Project | Parameter | ||
| Rated voltage | 12kv | ||
| Rated insulation level | 1min power frequency withstand voltage (between poles, to ground/break) | Dry | 42kv |
| Wet | 34kv | ||
| Lightning impulse voltage (between poles, to ground/break) | 75kv/85kv | ||
| Rated current | 630A | ||
| Rated short-time withstand current and duration | 16kA/4s | ||
| Rated peak withstand current | 40kA | ||
| Rated short-circuit making current | 40kA | ||
| Mechanical life | 10000 Times | ||
| Designed service life | 20 years | ||
| Net weight | 210kg | ||
| Rated frequency | 50Hz | ||
Note:
1. When the altitude of the product is higher than 1000m, the insulation withstand voltage should be adjusted accordingly.
2. When the PT is built-in, the inter-electrode withstand voltage is prohibited.
Main Technical Parameters:
| Electronic Current Sensor | ||
| Rated current ratio | Phase current | 600A/1V |
| Zero-sequence current | 20A/0.2V | |
| Accuracy | Phase current | 0.5S/5P10 |
| Zero-sequence current | 10P10,(1%-120%)In < 1% | |
| Implementation method | Low power electromagnetic type | |
| Load impedance | ≥ 20 kΩ | |
| Temperature range | -40℃ -70℃ | |
| Electronic-typeVoltage Sensor | ||
| Rated voltage ratio | Phase current | 10kv, 3.25V |
| Zero-sequence current | 6.5V | |
| Accuracy | Phase current | 0.5 |
| Zero-sequence current | 1 | |
| Implementation method | Resistance division pressure | |
| Temperature range | -40℃ -70℃ | |
| Partial release | At 14.4kV, 10 pC | |
| Load impedance | Terminal input impedance >10KΩ Distribution line loss collection module input impedance >10 MΩ Comprehensive impedance >5MΩ | |
| Electromagnetic-type Voltage Transformer (external type) | ||
| Quantity | 2 | |
| Rated voltage ratio | 10kv / 0.1kv / 0.22kv | |
| Accuracy | 0.5 | |
| Capacity | 10/0.1 winding, 30VA10/0.22 winding, meet product power consumption requirements Rated capacity ≥ 150VA Short-time capacity ≥ 300VA/1s |
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1B601, Lefu Square, No. 481 Guangming Avenue, Dongkeng Community, Fenghuang Street, Guangming District, Shenzhen
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