Overview

The JDG-0.5kv Indoor Dry-Type Low Voltage Transformer is a high-quality solution designed for voltage measurement, energy metering, and relay protection in power systems operating at 0.5kV and 50Hz. Its compact design, robust construction, and compliance with GB1207 and IEC60044-2:2003 standards make it ideal for various indoor low-voltage applications. Featuring a dry-type design, this transformer is built to deliver precision and reliability in demanding environments while ensuring safety and efficiency.

JDG4-0.5 Indoor Low Voltage Transformer is engineered for accuracy and durability, the JDG-0.5 transformer is particularly suited for use in measuring instruments and protective relay systems. Its advanced structure, made with cold-rolled silicon steel cores and a thermosetting phenolic plastic framework, guarantees long-term performance and operational stability. The transformer’s overload prevention mechanisms further enhance its reliability, making it an essential component for low-voltage electrical systems.

Type Designation

The product’s type designation is explained as follows:

• J: Voltage transformer
• D: Single phase
• G: Dry type
• 0.5: Voltage grade (kV)

Note: For specific requirements or customizations, contact our technical team to create a tailored solution.

Operating and Installation Conditions

• Installation Location: Indoor use only.
• Ambient Temperature: -5°C to +40°C.
• Ambient Humidity: Maximum relative humidity of 80%.
• Altitude: Installation not exceeding 1000 meters.
• Atmospheric Conditions: Suitable for environments free from severe pollution or contamination.

Technical Data for JDG-0.5 Low Voltage Transformer

Outline and Dimensions of Installation

JDG4-0.5 Indoor Low Voltage Transformer Dimensions of Installation

JDG-0.5 Indoor Low Voltage Transformer Dimensions of Installation

Connection Methods

The JDG-0.5 Voltage Transformer supports the following connection methods for flexible system integration:

1. Star Connection (Y-Y): Suitable for systems where the neutral point is ungrounded or grounded through an arc suppression coil. This configuration is used for measuring phase-to-ground voltage.
2. V-V Connection: A two-transformer configuration designed for ungrounded or arc suppression coil-grounded networks below 20kV. This setup measures inter-phase voltage and is ideal for medium-voltage applications.
3. Open Delta Connection: Commonly used across voltage levels, especially in 3~15kV systems. This setup measures phase-to-ground and inter-phase voltages, providing auxiliary open-delta windings for relay protection or insulation monitoring.

Ordering Information for JDG-0.5 Voltage Transformer

When placing an order for the JDG-0.5 Indoor Dry-Type Low Voltage Transformer, please specify the following details to ensure accurate fulfillment:

1. Insulation Level: Specify the required insulation level.
2. Voltage Ratio: Indicate the ratio of primary to secondary voltage.
3. Rated Output and Accuracy Class: Provide the number of cores, rated output, and desired accuracy class.
4. Installation Dimensions: Include any specific installation size requirements.
5. Operating Environment: Mention the ambient conditions, such as temperature, humidity, and altitude.
6. Special Customizations: Highlight any additional parameters or unique requirements for customization.

Note: For tailored solutions or further technical assistance, please contact our support team.

FAQs for JDG-0.5 Voltage Transformer

1. What are the main applications of the JDG-0.5 Voltage Transformer?
   It is ideal for low-voltage power systems requiring accurate voltage measurement, energy metering, and relay protection.
2. What compliance standards does the JDG-0.5 meet?
   The transformer adheres to GB1207 and IEC60044-2:2003 standards, ensuring top-tier performance and safety.
3. Is the JDG-0.5 suitable for outdoor applications?
   No, the transformer is specifically designed for indoor environments.
4. What is the rated output capacity?
   The JDG-0.5 offers a rated output of 15–25 VA and a limit output of 100 VA, depending on the voltage ratio.
5. Can the JDG-0.5 be customized?
   Yes, customizations are available to meet specific operational needs. Contact our technical team for tailored solutions.