JDZ9-35G JDZF9-35 Voltage Transformer Overview

JDZ9-35G JDZF9-35kv series outdoor voltage transformers are fully enclosed, epoxy resin-insulated products designed for 35kV medium-voltage systems. These transformers operate at a rated frequency of 50Hz or 60Hz and are used for electric energy metering, voltage monitoring, and relay protection in power distribution networks.

Manufactured in accordance with IEC 186 and GB1207-2006 standards, the JDZ9-35 series offers high reliability, excellent insulation performance, and long-term operational stability. Their compact and durable design makes them suitable for a wide range of applications in medium-voltage power systems, ensuring accurate measurement and protection. These transformers are ideal for substations and industrial power networks where precision, safety, and compliance with international standards are essential.

JDZ9-35 Voltage Transformers Type Designation

Key Features and Structure of JDZ9-35 Voltage Transformers

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

This designation highlights the JDZ9-35 voltage transformers’ suitability for medium-voltage power systems, emphasizing their cast-resin insulation, single-phase design, and compatibility with 35kV applications.

Service Conditions for JDZ9-35 Voltage Transformers

• Installation Location: Outdoor.
• Ambient Temperature:
  • Maximum: +40°C
  • Minimum: -25°C
  • Daily Average: Not exceeding 30°C
• Altitude: Not exceeding 1000m.
• Atmospheric Conditions: Free from severe pollution or contamination.

These conditions ensure reliable performance and durability for the JDZ9-35 voltage transformers in medium-voltage outdoor applications.

Construction of JDZF9-35 Voltage Transformers

The JDZ9-35 series outdoor voltage transformers feature a fully enclosed, epoxy resin-cast structure with the core and windings molded into a single unit. Designed for secure installation with a bottom-mounted plate, the series includes multiple configurations: JDZF9-35 with two secondary windings for separate energy metering and voltage monitoring, with three secondary windings for energy metering, voltage monitoring, and relay protection, offering a fully insulated design for enhanced safety. These transformers provide reliable performance and precise functionality for medium-voltage power systems.

Technical Data for JDZ9-35 Voltage Transformers

• Standards Compliance: The JDZ9-35 voltage transformers fully comply with the partial discharge test requirements as per GB20840.3-2013 and GB20840.1-2010 standards.
• Pollution Level: Designed for II class pollution conditions, ensuring reliable performance in medium-voltage environments.

Type	Rated Voltage Ratio (V)	Accuracy Class Combination	Rated Output (VA)	Max Output (VA)	Rated Insulation Level (kV)
JDZ9-35	35000/100 35000/220	0.2	50	800	40.5/95/200
		0.5	90
JDZF9-35	35000/100/100 35000/100/220	0.2/0.2	30/30, 30/50, 50/50	2 × 400
		0.2/0.5
		0.5/0.5
JDZX9-35G	35kv/√3/100/√3/100/3	0.2/6P	30/100	600
		0.5/6P	90/100
JDZXF9-35G	35kv/√3/100/√3 /100/√3/100/3	0.2/0.2/6P	20/20/100	2 × 300
		0.2/0.5/6P	25/25/100
		0.5/0.5/6P	30/30/100

NOTE: This structured table represents the rated voltage ratios, accuracy classes, output values, maximum output capacity, and rated insulation levels for the JDZ9-35 series voltage transformers. For special requirements or custom configurations, please contact our technical team for assistance.

Outline and Dimensions of Installation

Wiring Principles for JDZ9-35 Voltage Transformers

Note:

When ordering JDZ9-35 outdoor  Voltage Transformers, please specify the required parameters, such as voltage ratio, accuracy class, and output capacity. For custom configurations or special requirements, including fully insulated designs and additional secondary windings, please contact our technical team. We are committed to providing tailored solutions for precise voltage measurement, energy metering, and relay protection in medium-voltage power systems.

FAQs for JDZ9-35 Voltage Transformer

1. What are the key applications of the JDZ9-35 Voltage Transformer?
   The JDZ9-35 transformer is ideal for energy metering, voltage monitoring, and relay protection in 35kV outdoor power systems, particularly in substations, industrial facilities, and power distribution networks.
2. How does the epoxy resin insulation improve the transformer’s performance?
   Epoxy resin provides excellent protection against environmental factors such as moisture, UV exposure, and aging, ensuring long-lasting performance and reduced maintenance needs.
3. Can the JDZ9-35 transformer be customized for specific needs?
   Yes, the JDZ9-35 offers flexible customization options for voltage ratios, accuracy classes, and secondary windings, making it adaptable for diverse operational requirements.
4. What maintenance is required for the JDZ9-35 Voltage Transformer?
   The JDZ9-35 requires minimal maintenance, primarily periodic inspections for cleanliness, operational integrity, and verifying the functionality of safety components like zinc oxide arresters.
5. How does the JDZ9-35 ensure safety in high-voltage applications?
   The transformer features built-in safety features such as short-circuit protection, zinc oxide arresters for lightning protection, and compliance with international standards to ensure safe operation in demanding environments.
6. Why choose the JDZ9-35 Voltage Transformer over traditional models?
   Its advanced epoxy resin insulation, multiple secondary winding options, compliance with international standards, and suitability for harsh outdoor environments make it a reliable and efficient choice for modern high-voltage systems.

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