Fully Enclosed Pillar Type Current Transformer

The LZZBJ9-35 Fully Enclosed Pillar Type Current Transformer complies with GB/T 20840.1, 2 and IEC 61869-1, 2 standards, ensuring high reliability and safety. Operating in ambient temperatures from -5℃ to +40℃, it features an impressive insulation level of 40.5/95/200 kV. With a power factor of cosφ = 0.8 (lagging) and options for rated secondary currents of 5A or 1A, this equipment is versatile for various applications. As a leading manufacturer and supplier based in China, our factory is dedicated to producing high-quality electrical solutions that meet diverse industry needs.

Advantages

1.Standards Compliance:Meets GB/T 20840.1, 2 and IEC 61869-1, 2 standards, ensuring reliable and safe operation.
2.Wide Operating Temperature Range:Functions effectively in ambient temperatures from -5℃ to +40℃, suitable for various environmental conditions.
3.Versatile Performance:Offers flexibility with rated secondary currents of 5A or 1A, accommodating different application requirements.

MAIN TECHNICAL PARAMETERS

Note:If the parameters requested by the user are beyond the scope of the above table,they can bedetermined after consultation with our company.

Main Features

1.Standards Compliance:Meets GB/T 20840.1, 2 and IEC 61869-1, 2 standards, ensuring reliable and safe operation.
2.Wide Operating Temperature Range:Functions effectively in ambient temperatures from -5℃ to +40℃, suitable for various environmental conditions.
3.Versatile Performance:Offers flexibility with rated secondary currents of 5A or 1A, accommodating different application requirements.

Product Highlights

1.High-Voltage Fully Enclosed Pillar-Type Structure: Designed for 35kV power systems with an insulation level of 40.5/95/200 kV, offering excellent voltage withstand and pollution flashover resistance.
2.Optional Dual-Ratio Design: Supports both single and dual transformation ratios e.g.,50−100/5 to accommodate system expansion or load variation needs.
3.High-Accuracy and Protection Integration: Combines measurement classes 0.2S/0.5 with protection classes (10P10/10P20/10P30), meeting integrated requirements for metering, monitoring, and relay protection.
4.Wide Operating Temperature Range: Stable operation in ambient temperatures from -5℃ to +40℃, suitable for most climatic regions.

Operational Cost Optimization

1.Pillar-Type Integrated Design: Sturdy structure reduces the need for external supports, lowering installation and maintenance complexity.
2.High Dynamic and Thermal Stability: Short-time thermal current up to 72 kA and dynamic stability current up to 144 kA, with strong short-circuit withstand capability to extend equipment life.
3.Low Power Factor Loss: cosφ=0.8 (lagging) improves system energy efficiency and reduces operational losses.

Logistics and Installation

1.Modular Pillar Structure: Shipped as complete units with easy on-site assembly, reducing construction time.
2.Compatible with Standard Mounting Bases: Provides mounting flanges and fasteners compatible with various 35kV switchgear and structures.
3.Extensive Export Packaging Experience: Served clients in over 30 countries, supporting packaging options such as wooden crates and pallets.

Durability and Stability

1.Fully Enclosed Cast Insulation: Outdoor design with rain, dust, and UV resistance, suitable for outdoor substations and harsh environments.
2.Seismic and Wind-Resistant Design: High structural strength meets requirements for high wind speeds and seismic conditions.
3.Low Partial Discharge: Uses high-quality insulating materials and vacuum casting processes to ensure stable insulation performance during long-term operation.

Production Process Advantages

1.Fully Automatic Pressure Gelation (APG) Process: Ensures dense and uniform insulation layers without air gaps or cracks.
2.Precision Winding and Shielding Processes: Reduces magnetic leakage and interference, improving measurement accuracy and electromagnetic immunity.
3.Complete Type Testing Validation: Includes full-range tests such as lightning impulse, temperature rise, error, and partial discharge, ensuring compliance with national and IEC standards.

Innovative Design Features

1.Optional Dual-Ratio Automatic Switching Function: Supports remote or local ratio switching to adapt to system operation changes.
2.Smart Monitoring Interface Provision: Can integrate online monitoring modules for temperature, current, etc., supporting digital substation integration.
3.Explosion and Crack Prevention Design: Internal pressure relief structure prevents equipment rupture during faults.

Green and Energy-Saving Features

1.Eco-Friendly Epoxy Materials: Insulation materials are non-toxic and biodegradable, meeting green power equipment requirements.
2.Low-Loss Magnetic Core: Uses high-permeability, low-loss silicon steel sheets to reduce no-load current and iron losses.
3.Long-Life Recyclable Design: Product lifespan of over 30 years, with materials easily sorted and recycled after decommissioning.

Why Choose Us?

1.Specialized 35kV Transformer Manufacturer: Offers a series of products with mature processes and mass production capabilities.
2.Complete Certifications and Reports: Provides type test reports issued by national testing centers, supporting grid access.
3.Wide Application in Domestic and International Projects: Extensive operational experience in power stations, industrial plants, new energy, and other fields.
4.End-to-End Service Support: Delivers one-stop services from selection consultation, drawing confirmation, installation guidance, to after-sales maintenance.

FAQ

Q1: How is wiring and ratio switching performed for dual-ratio transformers?
A: Ratio switching is typically done via external linking pieces or terminals. Refer to our wiring diagrams for specific connections. Some models support remote electric switching.
Q2: Is it suitable for high-altitude areas?
A: Standard products are suitable for altitudes ≤1000m. High-altitude applications require customized designs with enhanced insulation.
Q3: What is the protection rating?
A: Outdoor models generally have an IP54 rating. Higher ratings such as IP55 can be provided upon request.

Service Support

1.Pre-Sales Technical Consultation: Provides system parameter collection and selection advice, supports drawing design and confirmation. 2.On-Site Installation Guidance: Engineers available for on-site or video guidance for installation and commissioning. 3.Spare Parts Supply: Maintains stock of core components for quick replacement and repair.

Contact us

Following more than a decade of strategic growth, Jinhand has established itself as one of the prominent manufacturers and suppliers of electrical equipment in China. Our factory integrates a wide range of state-of-the-art technologies and facilities, and we welcome you to buy our top-quality, cost-efficient products manufactured in China.