The ZJ302-40.5 12KV Insulator Sensor is a high-performance capacitive voltage sensor designed for accurate voltage detection in power distribution systems. Engineered for industrial switchgear, substations, and electrical networks, this sensor ensures reliable monitoring and enhances operational safety. Its epoxy resin insulation and robust design make it suitable for harsh high-voltage environments.

Key Features and Advantages

High Accuracy Voltage Detection

• Supports precise real-time voltage measurement in 12KV systems.

• Minimizes errors in power monitoring, providing reliable system data.

• Enables early detection of abnormal voltage conditions for preventive maintenance.

Durable Epoxy Resin Insulation

• Constructed with high-strength epoxy resin, resistant to moisture, pollution, and temperature fluctuations.

• Ensures long-term reliability and reduces maintenance costs.

• Provides excellent electrical insulation properties for high-voltage systems.

Compact and Modular Design

• Designed for easy installation in existing switchgear and distribution cabinets.

• Lightweight and corrosion-resistant housing ensures transportation efficiency and operational safety.

• Modular configuration allows flexible adaptation to various electrical network layouts.

Enhanced Operational Safety

• Reduces the risk of insulation breakdown under high-voltage conditions.

• Integrates seamlessly with protective relay and monitoring systems.

• Complies with international safety and electrical standards.

Structure and Technical Description

Working Principle

The ZJ302-40.5 operates on a capacitive sensing principle. Voltage applied across the sensor induces a proportional capacitive charge, which is then converted into a measurable electrical signal. This enables precise voltage monitoring without direct contact with high-voltage components, enhancing safety for maintenance personnel.

Dimensions and Mounting

• Designed for 12KV switchgear with standard mounting specifications.

• Dimensions allow seamless integration into wall-mounted or busbar configurations.

• Lightweight structure ensures easy handling during installation and replacement.

Applications

Power Distribution Substations

• Real-time voltage monitoring and data collection.

• Integration with SCADA systems for remote voltage management.

Industrial Switchgear

• Precise measurement in industrial high-voltage equipment.

• Supports fault detection and predictive maintenance.

Electrical Networks

• Monitoring distribution lines for voltage stability.

• Enhances operational reliability and grid efficiency.

Transportation and Handling Requirements

Packaging Guidelines

• Sensors are packed individually in shock-resistant foam and cardboard boxes.

• Protective caps are installed on all connectors to prevent contamination.

• Each package includes calibration and inspection certificates.

Handling Precautions

• Avoid dropping or subjecting sensors to mechanical shocks.

• Maintain clean and dry conditions during transportation.

• Do not expose sensors to corrosive gases or liquids.

Installation Instructions

1. Pre-Installation Check

• Inspect for physical damage and verify model specifications.

• Ensure the switchgear cabinet is de-energized before installation.

2. Mounting Procedure

• Align sensor terminals with designated voltage points.

• Secure sensor body with mounting bolts and check insulation clearance.

3. Electrical Connections

• Connect sensor terminals according to wiring diagrams.

• Verify tightness and insulation integrity before energizing the system.

4. Testing

• Conduct insulation resistance and continuity tests.

• Calibrate the sensor output for accurate voltage measurement.

Maintenance Guidelines

Routine Inspection

• Monthly visual inspection for cracks, contamination, or loose connections.

• Ensure terminal connectors are corrosion-free and tight.

Cleaning Procedures

• Wipe surface with dry or slightly damp lint-free cloth.

• Avoid abrasive materials or chemical solvents that may damage epoxy insulation.

Periodic Testing

• Conduct dielectric strength and capacitance measurements annually.

• Verify sensor calibration with reference voltage sources.

Quality Assurance and Standards

• Complies with IEC 60044-7 and other international high-voltage sensor standards.

• Each unit undergoes rigorous factory testing, including:

• High-voltage withstand testing

• Insulation resistance measurement

• Capacitive accuracy verification

• Certificate of Conformance (CoC) and product inspection report included with each shipment.

Product Advantages

1. High Reliability: Long operational life in harsh environmental conditions.

2. Safety: Non-contact voltage detection reduces electrical hazards.

3. Efficiency: Supports automated monitoring systems for faster fault detection.

4. Compatibility: Works with a wide range of switchgear and busbar systems.

5. Low Maintenance: Epoxy resin insulation reduces need for frequent servicing.

The ZJ302-40.5 12KV Insulator Sensor is an advanced solution for voltage detection in high-voltage power distribution systems. Its durable epoxy resin construction, accurate capacitive sensing, and easy integration make it ideal for substations, switchgear, and industrial applications. With comprehensive quality testing, adherence to international standards, and low maintenance requirements, this sensor ensures safety, efficiency, and reliability across all electrical networks.