JDZX9-35 Outdoor Voltage Transformer Overview

The JDZXF9-35W and JDZX9-35 are outdoor medium-voltage transformers, fully enclosed and epoxy resin-cast, designed for use in 35kV power systems. They operate at a rated frequency of 50Hz or 60Hz and are ideal for energy metering, voltage monitoring, and relay protection.

JDZX9-35 Outdoor Voltage Transformer Compliant with IEC 186 and GB1207-2006 standards, these transformers deliver high reliability and accuracy, making them suitable for modern power systems. Their robust construction ensures consistent performance in medium-voltage applications, meeting the demands of industrial and utility installations.

The JDZX(F)9-35 series stands out for its precision, durability, and compliance with international standards, providing dependable solutions for critical power applications.

JDZXF9-35W PT Type Designation

Key Features and Structure of JDZX9-35 Voltage Transformers

• J: Voltage transformer.
• D: Single-phase.
• Z: Casting resin insulated.
• X: With residual voltage winding.
• 9: Design sequence.
• 35: Rated voltage for 35kV systems.

This designation highlights the JDZX9-35 voltage transformers’ suitability for medium-voltage power systems, emphasizing their cast-resin insulation, single-phase design, and capability to handle residual voltage winding applications in 35kV systems.

Service Conditions for JDZXF9-35W Voltage Transformers

1. Installation Location: Outdoor.
2. Ambient Temperature:
   • Maximum: +40°C
   • Minimum: -25°C
   • Daily Average: Not exceeding 30°C
3. Altitude: Up to 1000m.
4. Pollution Level: Class IV.
5. Atmospheric Conditions: Free from severe pollution or contamination.

These service conditions ensure the reliable and stable operation of JDZXF9-35W voltage transformers in medium-voltage outdoor power systems.

Construction of JDZXF9 Voltage Transformers

The JDZX9 & JDZXF9-35KV voltage transformers are fully enclosed devices made of epoxy resin casting for robust insulation and durability. The iron core and windings are molded into a single unit, ensuring structural integrity and consistent performance in medium-voltage systems.

Key features include:

1. Single-Phase Design: Suitable for 35kV systems, with configurations supporting energy metering, voltage monitoring, and relay protection.
2. Multiple Secondary Windings: Enables separation of functions for precise measurement and enhanced system reliability.
3. Outdoor Installation: Designed to withstand harsh environmental conditions while maintaining accuracy and stability.

Technical Data for DZX9-35KV Voltage Transformers

• Complies with GB20840.3-2013, GB20840.1-2010, and GB 1207 standards.
• Designed for Class II pollution conditions.
• Specifications for accuracy class and voltage ratio are detailed in the table.

Type	Rated Voltage Ratio (V)	Accuracy Class Combination	Rated Output (VA)	Max Output (VA)	Rated Insulation Level (kV)
JDZX9-35	35000/√3/100/√3/100/3	0.2/6P	30/100	600	40.5/95/200
		0.5/6P	50/100
JDZXF9-35	35000/√3/100/√3 /100/√3/100/3	0.2/0.2/6P	20/20/100	2×300
		0.2/0.5/6P	25/30/100
		0.5/0.5/6P	30/30/100

Notes:

• Custom voltage transformers with specific accuracy levels and voltage ratios can be tailored to user requirements.
• Only one specified voltage ratio should be used at a time for optimal performance.
• Simultaneous use of multiple ratios is not recommended to ensure accuracy and reliability.
• Contact our team for high-performance, non-standard voltage transformer solutions.

Outline and Dimensions of Installation

Wiring Principles for DZX9-35KV Voltage Transformers

Note:

To ensure seamless integration and optimal performance, please specify key parameters such as voltage ratio, accuracy class, and rated output when ordering JDZX9-35 and JDZXF9-35 voltage transformers. For bespoke configurations, including enhanced insulation designs or specialized secondary windings, our technical and commercial teams are available to assist. We are committed to providing tailored, high-precision solutions that meet the diverse operational needs of medium-voltage power systems.

FAQs for JDZX9-35 Voltage Transformer

What are the key applications of the JDZX9-35 Voltage Transformer?

The JDZX9-35 is ideal for energy metering, voltage monitoring, and relay protection in 35kV outdoor power systems, especially in industrial, utility, and rural applications.

How does the epoxy resin casting improve the performance of the JDZX9-35?

Epoxy resin provides excellent insulation, UV resistance, and protection against environmental factors like moisture, ensuring a longer operational life and lower maintenance needs.

Can the JDZX9-35 Voltage Transformer be customized for specific needs?

Yes, the transformer can be customized with specific voltage ratios, accuracy classes, and secondary windings to meet unique operational requirements.

What maintenance is required for the JDZX9-35 Voltage Transformer?

The transformer requires minimal maintenance, primarily focusing on periodic inspections, ensuring proper cleanliness, and checking the oil level in harsh outdoor environments.

How does the JDZX9-35 ensure safety in outdoor power systems?

The fully enclosed structure, along with its UV and moisture-resistant design, ensures safe operation in outdoor environments, and its compliance with international standards further guarantees performance.

What environmental conditions can the JDZX9-35 handle?

The transformer is designed to function in extreme temperatures (from -25°C to +40°C), at altitudes up to 1000m, and in pollution levels up to Class IV, ensuring reliable operation even in demanding conditions.

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