Detailed Introduction
Product Features:
1. A newly designed 220 kV single-phase miniaturized GIS surge arrester, with an overall height of 1.365 m and a weight of 178 kg, is at an internationally advanced and domestically leading level.
2. It employs high‑gradient zinc oxide varistors and a single‑column, multi‑section cage‑type core structure, delivering excellent volt‑ampere characteristics, low residual voltage, and ample protection margin, thereby precisely limiting various overvoltages.
3. All-metal sealed tank structure, with internal insulation using SF₆ gas, no exposed porcelain bushings, resistant to pollution flashover and condensation, and suitable for complex insulation environments.
4. Featuring an integrated design, the unit boasts a compact structure and small footprint, enabling seamless integration with GIS equipment and minimizing installation space requirements.
5. Equipped with a built-in precision equalizing shield structure, it ensures uniform electric field distribution, minimal partial discharge, high operational stability, and reduced risk of failure.
6. Excellent sealing performance, with an extremely low annual leakage rate of SF₆ gas (typically <0.1%), eliminating the need for routine gas replenishment and minimizing maintenance workload.
7. It exhibits strong resistance to lightning overvoltages and switching overvoltages, boasts a large current-carrying capacity, offers excellent aging resistance and long service life, and meets the requirements for long-term stable operation.
8. The all‑metal enclosure is fully sealed, ensuring reliable performance in harsh environments such as high altitudes, salt spray, dust, and humid heat, making it suitable for a wide range of applications.
9. Under normal operating conditions, the leakage current is extremely low; it is passive and inductive‑free, with no reverse current and no risk of power‑frequency reverse‑current breakdown, ensuring high operational safety.
10. It can be equipped with an online monitoring interface, supporting real-time monitoring of SF₆ pressure and arrester leakage current, thereby enabling intelligent operation and maintenance.
11. The enclosure is made of corrosion- and rust-resistant materials, with a specially treated surface that provides excellent resistance to corrosion and abrasion, making it suitable for long-term outdoor installation.
Product Specifications
| Product model | Y10WF-102/266S | Y10WF-204/532 | Y10WF-300/727 | Y20WF-420/1046 | |
| System rated voltage kV r.m.s. | 110 | 220 | 330 | 500 | |
| Maximum system voltage kV r.m.s. | 126 | 252 | 363 | 550 | |
| Arrester rated frequency, Hz | 50 | ||||
| Installation method | Upright/Inverted | ||||
| Insulating medium | SF6 or mixed gas | SF6 | |||
| Arrester rated voltage (Ur) kV r.m.s. | 102 | 204 | 300 | 420 | |
| Nominal discharge current kA | 10 | 20 | |||
| Arrester continuous operating voltage (UC), kV r.m.s. | 79.6 | 159 | 228 | 318 | |
| DC 1 mA reference voltage kV | 148 | 296 | 425 | 565 | |
| Power-frequency (resistive 1 mA) reference voltage ≥ kV (peak/√2) | 102 | 204 | 300 | 420 | |
| Residual Voltage Test | 1/5 μs steep‑wave impulse residual voltage ≤ kV P | 297 | 594 | 814 | 1170 |
| 8/20 μs lightning impulse residual voltage ≤ kV P | 266 | 532 | 727 | 1046 | |
| 30/60 μs switching impulse residual voltage ≤ kV P | 226 | 452 | 618 | 858 | |
| Repetitive charge transfer C | 1.2 | 1.6 | 2.8 | 3.6 | |
| 4/10 Withstand 2 large-current surges, kA | 100 | ||||
| Leakage current at 0.75 times the DC 1 mA reference voltage ≤ μA | 30 | 50 | |||
| Continuous current | Total current ≤ 900 μArms | Total current ≤ 2000 μArms | Total current ≤ 5000 μArms | ||
| Resistive current ≤ 250 μA p | Resistive current ≤ 1000 μA p | Resistive current ≤ 1500 μA p | |||
| 1.1 Partial discharge quantity under UC ≤ pC | 5 | ||||
| SF6 rated pressure (20°C) (MPa) | 0.5 | ||||
| SF6 recharging pressure (20°C) (MPa) | 0.45 | ||||
| SF6 leakage rate (%) | <0.05% | ||||
| SF6 trace moisture content (μL/L) | ≤150 | ||||
| External dimensions | Height (mm) | 870 | 1430 | 1780 | 2048 |
| Length (mm) | 665 | 520 | 720 | 795 | |
| Width (mm) | 665 | 520 | 720 | 795 | |
| Base mounting dimensions | Mounting hole (mm) | 4×φ28 | 4×φ29 | 4×φ30 | 4×φ28 |
| Hole spacing (mm) | 550×550 | 450×450 | 620×620 | 700×700 | |
| Total product weight (kg) | 225 | 178 | 330 | 460 | |
Quotation Inquiry
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Y10WF-204-532 220kV
Product Installation and User Manual Download:
Keywords:
GIS surge arrester
Contact Information
Service Hotline:
Service email: tkhgqscb@163.com
Company Address: No. 11526, Longtan South Road, High-tech Zone, Tai’an City, Shandong Province
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Service Hotline:
Service email: tkhgqscb@163.com
Company Address: No. 11526, Longtan South Road, High-tech Zone, Tai’an City, Shandong Province