Overview

The JDZ6-1 Voltage Transformer is epoxy resin insulation, and is specifically designed for indoor use in power systems with a rated voltage of 11.4kV or below and a frequency of 50Hz. It is an essential component for electric energy metering, voltage measurement, and relay protection.

JDZ6-1kv Dry-Type Indoor Low Voltage Potential Transformer is engineered to comply with the GB/T 20840.1 & .3 standards, the JDZ6-1 Voltage Transformer ensures precise performance and reliability in monitoring and safeguarding electrical systems. Its advanced design supports applications across industrial and utility sectors, delivering accurate and stable measurements for operational efficiency.

Type Designation of JDZ6-1 PT

The following explains the type designation for the JDZ6-1 voltage transformer:

• J: Voltage Transformer
• S: Three-phase
• G: Five-leg core
• W: Dry type
• 0.5: Voltage grade (kV)

Note: For specific requirements, customizations, or installation dimensions, please contact our technical team for tailored solutions.

Construction of JDZ6 Potential Transformer

JDZ6-1kv Indoor Dry-Type Low Voltage Potential Transformer, features a core made of high-quality cold-rolled silicon steel sheets, shaped into a “C” configuration. The primary and secondary windings are positioned on the central column of two “C”-shaped cores. The wire terminals are routed to the connection pedestal for ease of access. Operating under overload conditions is strictly prohibited to ensure optimal performance and safety.

Operating and Installation Conditions

1. Altitude: Not exceeding 1000m.
2. Ambient Temperature: Indoor use, ranging from -5°C to +40°C.
3. Installation: The transformer is designed for indoor use. Other conditions include:
   • Protection against direct sunlight can be omitted.
   • Free from significant dust, smoke, corrosive gases, steam, and salt contamination.
4. Humidity Requirements:
   • 24-hour relative humidity average not exceeding 95%.
   • 24-hour vapor pressure average not exceeding 2.2kPa.
   • Monthly relative humidity average not exceeding 90%.
   • Monthly vapor pressure average not exceeding 1.8kPa.

Technical Data for JDZ6 Potential Transformer

Rated VoltageRatio (V)	380/√3 100/√3 100/3	500/√3 100/√3 100/3
Frequency (Hz)	50	50
Rated Output (VA)	50 80 250 340 0.5/3	50 80 250 340 0.5/3
For Accuracy Class 0.5
For Accuracy Class 1
For Accuracy Class 3
Max. Rated Output (VA)
Insulation Level (kV)

Note: For detailed parameters, please refer to this table. If you have special requirements, please contact our technical team.

Outline and Dimensions of Installation

Connection Methods for Voltage Transformers

Installation, Testing, and Operation

1. Ensure that the installation site and method meet the conditions specified in Section 4.
2. Inspect the product before installation, ensuring no visible defects or loose parts.
3. Verify that the core and winding parameters meet the selection requirements. Tighten the mounting bolts securely while ensuring the product’s label sides “A” and “B” are positioned correctly, with the secondary terminal sides marked “a” and “x” connected to the secondary wiring.
4. The transformer must be properly grounded as per requirements.
5. Ensure all connections on the secondary terminals match the actual wiring diagram. Verify that the product operates without issues before putting it into use.

When ordering, please specify the following:

1. Insulation level
2. Ratio of primary and secondary voltage
3. Number of cores, output, and accuracy class
4. Test specification
5. For special customizations, please contact us

FAQs for JDZ6-1 Voltage Transformer

1. What is the primary application of the JDZ6-1 Voltage Transformer?
   It is designed for voltage measurement, energy metering, and relay protection in indoor power systems.
2. Can the JDZ6-1 operate in humid environments?
   Yes, it can operate in environments with relative humidity up to 95%, provided there is no condensation.
3. Is the JDZ6-1 suitable for outdoor use?
   No, the JDZ6-1 is specifically designed for indoor applications only.
4. Can the JDZ6-1 be customized for specific requirements?
   Yes, it offers customizable options for voltage ratios, insulation levels, and outputs. Contact our technical team for details.
5. What standards does the JDZ6-1 Voltage Transformer comply with?
   It adheres to GB/T 20840.1 & .3 standards, ensuring safety and reliable performance.