CG5-24Q/110×190/210/225 型户内高压带电显示装置传感器

产品概述

CG5-24Q系列户内高压带电显示器传感器 是一种根据电容分压原理设计的高压绝缘元件。主要用于指示高压线路的带电状态，并提供强制闭锁，有助于保障高压设备的安全运行。

该产品采用整体环氧树脂浇注工艺制造，同时提供绝缘和机械支撑功能。 柱式绝缘子 并且可以替代传统的 柱式绝缘子 在不兼容的应用中。它广泛用于24千伏室内高压配电系统。

产品特点

Main Performance Features

1. Integrated indication and interlocking functions:
   该传感器提供高压电路带电状态的实时指示以及强制联锁 switchgear 检修门，提供可靠的防误操作保护。电压指示和闭锁功能由同一高压信号控制，但通过独立电路运行。即使指示或控制电路发生故障，只要高压电路带电，电磁锁仍保持锁定状态，从而提高了运行安全性。
2. Excellent insulation performance:
   The epoxy resin cast structure provides a creepage distance suitable for 24 kV operating conditions, low partial discharge, strong resistance to arc ageing, and stable long-term insulation performance.
3. High mechanical strength:
   The one-piece cast structure provides excellent resistance to impact and torsional stress, making it suitable for complex installation conditions inside high-voltage switchgear.
4. Wide compatibility:
   The sensor is compatible with various indoor high-voltage presence indicators, including DXN series devices, and can be interlocked with electromagnetic locks, earthing switches, disconnectors, and other equipment.

Materials and Manufacturing Process

• Housing material: Epoxy resin manufactured using the APG casting process, providing a high insulation level and reliable environmental resistance.
• Internal structure: Integrated capacitive sensing rod for accurate voltage sampling and stable signal transmission.
• Surface design: Shed-type insulating profile that increases creepage distance and improves resistance to pollution flashover.

技术规格

参数	规格	备注
Models	CG5-24Q/110×190, CG5-24Q/110×210, CG5-24Q/110×225	Suffix indicates diameter × height in mm
额定电压	24千伏	Suitable for 20–24 kV indoor high-voltage systems
额定雷电冲击耐受电压	125 kV full wave	Peak withstand level
工频耐压	95 kV for 1 minute	均方根值
Interlocking Trigger Condition	Forced interlocking when the voltage of any phase reaches 65%–100% of the rated phase voltage	Q-type interlocking function
Indication Trigger Condition	Indicator illuminates when the phase voltage reaches 15%–65% of the rated phase voltage	Real-time voltage presence indication
总体尺寸	110 × 190 mm, 110 × 210 mm, or 110 × 225 mm	直径 × 高
材料	APG-cast epoxy resin	—
输出类型	Relay interlocking contact, normally open or normally closed optional	Suitable for electromagnetic lock interlocking
适用频率	50 赫兹	Suitable for power-frequency systems

应用

Main Application Areas

1. High-voltage switchgear:
   Indoor withdrawable switchgear, ring main units, gas-insulated switchgear, and other high-voltage switching equipment.
2. Power distribution equipment:
   Used with vacuum circuit breakers, earthing switches, disconnectors, and related components.
3. Power systems:
   Suitable for substations, distribution rooms, industrial facilities, mining enterprises, and other high-voltage power supply systems.
4. Renewable energy systems:
   Suitable for indoor high-voltage distribution equipment in photovoltaic and wind power grid-connected systems.

兼容设备

The sensor can be used with various indoor high-voltage presence indicators, such as DXN-Q models, electromagnetic locks, high-voltage sensors, and insulators.

It integrates the following functions:

• Voltage presence indication
• Forced electrical interlocking
• Insulating support
• Mechanical support
• Safety protection

操作条件

环境条件

1. Ambient temperature: -25°C to +40°C. Versions suitable for -35°C to +40°C are available for special regions.
2. Installation altitude: no more than 1,000 m. For installations above 1,000 m, the insulation performance must be evaluated according to applicable high-voltage insulation requirements.
3. Daily average relative humidity: no more than 95% RH.
4. Monthly average relative humidity: no more than 90% RH.
5. The installation environment should be free from severe pollution, flammable or explosive gases, chemically corrosive substances, and salt spray.
6. Direct sunlight should be avoided.

安装条件

1. The product should be installed inside indoor high-voltage switchgear on a flat and stable mounting surface.
2. Flange or bolt mounting may be used. The mounting holes must correspond to the embedded mounting structure of the product.
3. The terminal of the capacitive sensing rod must be reliably connected to the high-voltage circuit.
4. The interlocking contact wiring must comply with electrical control requirements. Loose, incorrect, or reversed connections must be avoided.

操作条件

1. The product must operate within its rated voltage of 24 kV. Operation above the rated voltage is prohibited.
2. Inspection is recommended every 6 to 12 months during normal operation.
3. The inspection should focus on:
   • Cleanliness of the insulating surface
   • Tightness of electrical connections
   • Effectiveness of the interlocking function
   • Condition of the sheds
   • Integrity of the epoxy resin body
4. The product must not be removed or touched while energized.
5. Oil, dust, and other contaminants must not be allowed to accumulate on the insulating surface.

安装与维护

安装程序

1. Clean the mounting surface and remove oil, dust, and foreign materials.
2. Install the sensor vertically in the designated switchgear position and tighten the mounting bolts evenly.
3. Connect the high-voltage circuit to the capacitive sensing rod and ensure reliable electrical contact.
4. Connect the interlocking contact to the electromagnetic lock and voltage presence indicator circuit. Check the wiring and polarity carefully.
5. Conduct an energization test to confirm that the voltage indicator and interlocking contact operate correctly.

维护要求

1. Routine inspection:
   Check the insulating surface for cracks, damage, electrical tracking, or contamination. Confirm that the wiring terminals are secure and that the sheds are clean.
2. Cleaning:
   Clean surface contamination using a dry, soft cloth. Do not wash the product directly with water.
3. Troubleshooting:
   • No voltage indication: Check whether the high-voltage connection is loose or disconnected and whether the capacitive sensing rod is damaged.
   • Interlocking failure: Check the interlocking contacts, wiring connections, and relay. Replace faulty components as required.
   • Insulation abnormality: If electrical tracking, surface cracks, or other insulation damage is found, replace the sensor immediately.

注意事项

1. This product is a high-voltage equipment component. Installation and maintenance must be carried out by qualified electrical personnel in strict accordance with high-voltage safety procedures.
2. Do not drill, cut, grind, or otherwise modify the product surface. Such modification may damage the epoxy resin cast structure and cause insulation failure.
3. Store the product in a dry and ventilated warehouse. Protect it from moisture, impact, and mechanical damage.
4. When stored in its original undamaged packaging under suitable conditions, the storage period should be no less than 12 months.
5. Product selection must match the switchgear voltage level and installation dimensions.
6. For special dimensions, output contacts, or wiring configurations, confirm all technical parameters with the manufacturer before production.

质量保证

The product is manufactured under an ISO 9001 quality management system.

Before delivery, each product undergoes comprehensive testing, including:

• Power-frequency withstand voltage testing
• Partial discharge testing
• Interlocking operation testing
• Insulation performance inspection
• Visual and dimensional inspection

These tests help ensure that the product meets the specified performance requirements.