通用
25千伏 200安培 负荷隔离开关肘形连接器 是一种全屏蔽、绝缘的插入式端子，用于将地下电缆连接到箱式变压器的配电系统、环绕式电源分支箱、配有负荷隔离开关套管的电缆分支箱。肘形 连接器 和衬套插件构成了所有负载断开连接的基本组件。它可以满足核电站线路的需求。
负载断开肘采用优质硫磺硫化绝缘和半导电三元乙丙橡胶模制而成。标准配置包括铜顶连接器、带烧蚀灭弧尖端的镀锡铜负载断开探头以及不锈钢加强拉环。可选配由耐腐蚀塑料制成的电容式测试点，用于故障指示器。25kV电缆的可用导体截面为25-150mm²。带灭弧功能的导电杆。
25千伏订购信息
Product Information
通用
Key source specifications include Rated Voltage (Ue): 25kV(Applicable 24kV System, Maximum Operating Voltage 24kV); Rated Current (Ie): 200A; Power-Frequency Withstand Voltage: 65kV/5min(Dry Test) / 55kV/5min(Wet Test), No Breakdown / No Flashover; Lightning Impulse Withstand Voltage: 125kV(Peak), No Breakdown / No Flashover.
特性
Ethylene propylene diene monomer (EPDM) rubber insulation is employed to form a fully insulated, weather-resistant cable accessory structure.
A fully insulated and sealed design is identified for safer operation in medium-voltage distribution equipment.
Loadbreak and energized plug-in/pull-out capability are listed where the matched product specification supports switching operation.
Partial-discharge performance is included in the source specification to support long-term insulation reliability.
Waterproof and dust-resistant protection is specified for harsh indoor or outdoor cable-system environments.
Voltage sensing or live-indication capability is included for switchgear monitoring and safety indication.
应用
This 25kV cable accessory is intended for medium-voltage cable connection in ring main units, transformer cable boxes, cable branch boxes, switchgear, and related distribution equipment.
产品图片
技术参数
| 参数类别 | 物品 | 技术规格 |
|---|---|---|
| 额定电气参数 | 额定电压 (Ue) | 25kV(Applicable 24kV System, Maximum Operating Voltage 24kV) |
| Rated Current (Ie) | 200A | |
| 额定频率 (fn) | 50赫兹/60赫兹 | |
| 工频耐压 | 65kV/5min(Dry Test) / 55kV/5min(Wet Test), No Breakdown / No Flashover | |
| 雷电冲击耐受电压 | 125kV(Peak), No Breakdown / No Flashover | |
| 局部放电 | ≤10pC(1.5U0at) | |
| Rated Loadbreak Current | 200A( ≥100 | |
| Rated Short-Circuit Withstand Current | 16kA/2s(Selectable 20kA/2s, Cable | |
| 接触电阻 | ≤100微欧 | |
| 结构和材料参数 | 主料 | EPDM EPDM Rubber(Insulation ) / Tin-Plated Copper |
| 防护等级 | IP67 | |
| CableCross-Section | 25~240mm2( / InsulationCable, Customizable | |
| Interface Standard | 24kV Standard | |
| Grounding Method | Yellow-GreenGroundingLead Wire, Direct Grounding | |
| 环境参数 | 适用高度 | ≤2000m(High-Altitude Version Customizable) |
| 环境温度 | -40°C to +90°C(Operating Temperature), -40°C to +70°C(Storage Temperature) | |
| 相对湿度 | ≤100%(Non-Condensing) | |
| Seismic Grade | 8 Class | |
| 适用标准 | IEEE 386 / GB/T 12706 / DL/T 404 / GB/T 11022 |
Model Code Description
| 型号代码 | 意思 |
|---|---|
| JY | Product Series Code |
| ZT | 负荷隔离开关肘形连接器 |
| 25 | RatedVoltageClass, 24kV System, Maximum Operating Voltage 24kV |
| 200A | RatedCurrentClass, RatedLoadbreakCurrent 200A |
| 负荷隔离开关肘形连接器 | Loadbreak Loadbreak Elbow Connector, Energized Plug-In / Pull-Out |
订单信息
Before ordering, confirm interface standard, protection degree, and the required quantity according to the project drawings and source specification.