JLSZY-10KV Three-Phase Dry-Type Outdoor Combined Transformer

The JLSZY-6 & JLSZY-10 three-phase dry-type outdoor combined transformer are an advanced energy metering solution, designed for modern power networks. This Dry-Type Outdoor Combined transformer eliminates the need for traditional oil-immersed units,  it is ideal for non-oil renovations in 6kv and 10kv voltage power systems. With its compact design, large capacity, and anti-pollution epoxy resin insulation, it offers steady performance with minimal maintenance requirements.

This Combined Transformer integrates three single-phase fully insulated voltage transformers in a Y/Yo wiring mode. The built-in current transformers are series-connected to A and C phases, with secondary coil taps enabling precise current adjustments for enhanced metering accuracy. The high-quality, anti-aging epoxy resin outer casing ensures superior durability, while its maintenance-free design only requires periodic surface cleaning to maintain its sleek appearance and reliable operation.

Key benefits include its pollution-resistant structure, large capacity, and accurate energy measurement, making the  Combined Transformer perfect choice for outdoor installations in high-voltage three-phase systems. The JLSZY-6 and JLSZY-10 transformer are designed to deliver efficiency and reliability, meeting the demands of modern energy metering and power grid upgrades.

Type Designation for JLSZY-10 Combined Transformer

• J: Voltage Transformer
• L: Current Transformer
• S: Three-Phase Configuration
• Z: Epoxy Resin Casting Type
• Y: “Y” Wiring Mode
• 6, 10: Rated Voltage (6kV or 10kV)

This designation highlights the functional components and structure of the JLSZY-6/10 three-phase dry-type outdoor combined transformer.

Technical Data for JLSZY-6/10 Combined Transformer

• Rated Insulation Level: 1.2/42/75kV
• Smallest Creepage Distance: 440mm
• Current Transformer Parameters: Rated Secondary Current: 5A, 2A, or 1A.
• Voltage Transformer Parameters: Rated Secondary Voltage: 100V， Three-Phase Rated Secondary Output:
  • 0.2 Class: 3 × 15 (VA)
  • 0.5 Class: 3 × 30 (VA)

Refer to Table 1 for rated primary current, secondary output, and dynamic/thermal stable current values.

Rated Primary Current (A)	Rated Short-Time Thermal Current (KA virtual value)	Rated Dynamic Stable Current (KA peak value)	Rated Secondary Output (VA) 0.2,0.2S class,0.5, 0.5 class
5-10	1.0	2.5	10
10-20	1.5	3.75
15-30	2.4	6.0
20-40	3.0	7.5
30-60	4.5	11
40-75	8.0	20
50-100	9.0	22.5
75-150	12	30
100-200	16	40
150-300	24	60
200-400	32	80
300-600	60	100
400-800	80	100
500-1000	80	100

Note： This structured table represents the rated primary current, thermal and dynamic stable current values, and secondary output for the JLSZY-6/10 dry-type outdoor combined transformer. For special requirements or custom configurations, including high-precision accuracy or specific production environments, please contact our technical team for assistance.

Outline and Dimensions of Installation

JLSZY-10 Three-Phase Dry-Type Outdoor Combined Transformer Dimensions of Installation

Ordering Guidelines for JLSZY-10KV Combined Transformer

1. Product Specifications: Specify the model (JLSZY-6 & JLSZY-10), rated voltage (6kV or 10kV), and rated current. Include detailed requirements for accuracy classes (e.g., 0.2, 0.5) and secondary output specifications.
2. Special Customization: We provide tailored solutions in addition to standard transformers. Whether you need high-precision accuracy or adaptations for specific production environments, our team can design products to meet your exact needs.
3. Power Supply and Accessories: Indicate power supply requirements (e.g., AC/DC 110V or 220V) and specify any additional features such as enhanced insulation, pollution resistance, or specialized accessories.
4. Installation Conditions: Provide relevant details about the installation environment, such as altitude, ambient temperature, pollution level, and seismic resistance, to ensure compatibility with your operational site.

For customized solutions or technical consultations, please contact our expert team to deliver a product perfectly suited to your operational requirements.

Technical FAQs for JLSZY-10kV Transformer

1. What makes the JLSZY-10kV transformer eco-friendly?
   It eliminates the use of oil, relying on dry-type epoxy resin insulation, reducing environmental impact and maintenance requirements.
2. What applications is the JLSZY-10kV transformer suitable for?
   It is ideal for 6kV and 10kV high-voltage systems in urban grids, industrial power systems, rural electrification, and grid upgrades.
3. How does the transformer ensure reliable outdoor performance?
   Its anti-aging epoxy resin construction and high insulation standards provide resistance to pollution, moisture, and extreme environmental conditions.
4. Can the JLSZY-10kV transformer be customized?
   Yes, it offers customization options for rated currents, accuracy classes, secondary outputs, and enhanced insulation, tailored to specific operational needs.
5. What are the maintenance requirements for the JLSZY-10kV transformer?
   It features a maintenance-free design, requiring only periodic surface cleaning to maintain optimal performance over its lifespan.
6. What insulation and safety standards does the transformer meet?
   It has a rated insulation level of 1.2/42/75kV, meeting industry safety and performance standards for high-voltage applications.

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