Description of JLSZW-6.10 Combined Transformer

The JLSZW-6.10 Three-Phase Dry-Type Outdoor Combined Transformer, is a modern energy High-Voltage Metering device designed for outdoor use, offering a compact, oil-free alternative to traditional transformers. It is ideal for urban and rural power grids, industrial distribution systems, and outdoor substationsThis transformer features two single-phase wholly insulated voltage transformers in a three-phase “V/V” wiring mode and two current transformers connected to the A and C phases. The secondary coil includes adjustable taps, ensuring improved metering precision.Constructed with premium anti-aging insulating materials and epoxy resin vacuum-cast technology, it offers pollution resistance, low maintenance, and long-lasting durability. The JLSZW-6.10 is the perfect solution for efficient and reliable power metering in modern power systems.

Type Designation for JLSZW-6 Combined Transformer

• J: Voltage transformer
• L: Current transformer
• S: Three-phase
• Z: Epoxy resin casting type​
• W: Outdoor device
• 6, 10: Rated voltage class (kV)

This type designation defines the structure and functionality of the JLSZW-6.10 Three-Phase Dry-Type Outdoor Combined Transformer

Technical Data for JLSZW-10 Combined Transformer

• Rated Insulation Level: 12/42/75kV
• Smallest Appearance Creepage Distance: 440mm
• Current Transformer Parameters: Refer to the table for rated secondary current (5A, 2A, or 1A).
• Voltage Transformer Parameters: Rated secondary voltage of 100V, three-phase rated secondary output: 0.2 class: 2 × 15(VA), 0.5 class: 2 × 30(VA)
• Primary and Secondary Current, Output, and Stability: Refer to the Rated Dynamic/Thermal Stable Current Table 1.

Outline and Dimensions of Installation

When Ordering, Please Specify the Following:

1. Model and Voltage Ratio: Indicate the required model and voltage ratio to match your system specifications.
2. Accuracy Class and Secondary Output: Specify the required accuracy class (e.g., 0.2, 0.2S) and the secondary output for precise metering needs.
3. Insulation Class and Service Conditions: Provide details regarding the required insulation class and the environmental conditions, such as altitude, humidity, and temperature range, for optimal performance.
4. Customization for Special Applications:
   • Tailor the outer iron box dimensions and materials for unique application scenarios, including options such as a phase distance of 340mm.
   • Special customization for PT and CT parameters, including precision, current ratio, or other specific requirements, is also available.
     

These details ensure that the product is fully customized and optimized for your operational requirements.

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• Introduction to Combined Transformers and Their Classification
• Analysis of the Impact of Current Transformer Faults on Energy Meter Accuracy
• Common Fault Handling for Current and Voltage Transformers
• CT Saturation Impact on Protection Relay Accuracy During Fault Currents