Square Round Combined Hole Transformer

The Round and Square Integrated Hollow Current Transformer: A High-Performance Solution for Precision Electrical Measurement This compact, low-voltage current transformer is engineered for reliable performance in a wide range of industrial and commercial applications. Designed as a through-core type, it allows direct passage of single or multiple cables or busbars—eliminating the need for separate primary windings. Ideal for integration with ammeters and other monitoring devices, this device enables accurate real-time current measurement while maintaining electrical safety and system integrity. Key Features: - Dual-shaped core design (round and square) ensures compatibility with various conductor configurations - Cast resin insulation on the busbar combined with plastic housing provides robust protection against environmental stressors - Flame-retardant PC material shell offers superior durability, impact resistance, and long-term stability - High-grade silicon steel laminations reduce energy losses and enhance magnetic efficiency - Fully enclosed structure minimizes dust accumulation and prevents accidental contact - Adjustable number of primary turns allows flexible installation based on load requirements Detailed Description: Manufactured using advanced casting techniques, this current transformer features an integrated hollow core that accommodates conductive elements such as copper busbars or insulated cables without requiring disassembly. The internal iron core, made from premium-quality silicon steel, ensures minimal hysteresis loss and consistent accuracy across varying current levels. Its operating temperature range spans from -30°C to +60°C, making it suitable for both cold storage facilities and high-heat environments like manufacturing plants. The unit is resistant to moisture, vibration, and moderate pollution, ensuring reliable operation even under demanding conditions. This product serves as a critical component in power distribution systems where precise current monitoring is essential. It’s commonly used in switchgear panels, control cabinets, and metering units for applications such as HVAC systems, data centers, and renewable energy installations. Because it operates indoors and does not require external cooling, it’s particularly well-suited for enclosed spaces where space efficiency and safety are priorities. User Feedback: Customers have praised its ease of installation, especially when retrofitting existing electrical infrastructure. Many users highlight how the modular design simplifies maintenance tasks and reduces downtime during inspections. Others appreciate the clarity of readings when paired with digital meters, noting improved operational visibility compared to older analog solutions. The durable construction has also received positive feedback for withstanding harsh workshop environments over extended periods. Frequently Asked Questions: What makes this transformer different from traditional models? Unlike standard current transformers that rely on pre-wound coils, this through-core model uses the actual conductor as the primary winding—offering greater flexibility and simplified wiring. Is it suitable for outdoor use? No, it is intended for indoor use only due to its sealed design and lack of weatherproof rating. However, it performs reliably in controlled environments such as server rooms, factories, and utility closets. Can I change the number of primary turns? Yes, by passing the conductor through the core multiple times, you can adjust the effective turns ratio to match your measurement needs—an advantage often overlooked in fixed-ratio alternatives. How do I ensure optimal performance? Proper mounting, avoiding mechanical stress, and periodic inspection of connections will maintain accuracy and extend service life. Always verify compliance with local electrical codes before installation. This current transformer represents a smart choice for engineers seeking precision, adaptability, and longevity in low-voltage electrical measurement systems worldwide.