Description

The JDZ1-1 and JDZ2-1 Indoor Low Voltage Potential Transformer are designed for electric power systems with a rated frequency of 50/60Hz and a rated voltage of 1kV or lower. These transformers are intended for indoor mounting and meet the standards IEC60044-2 and GB1207-2006. They are primarily used for electric energy metering, voltage control, and relay protection applications in power systems.

These voltage transformers are well-suited for power systems with a rated frequency of 50Hz or 60Hz and a rated voltage of up to 1kV. They are essential for measuring electric energy, controlling voltage levels, and providing relay protection to ensure the safety and reliability of electrical systems by preventing faults.

Type Designation

Type Designation of JDZ1-1, JDZ2-1KV Low Voltage Potential Transformer Breakdown:

• J: Voltage transformer
• D: Indoor application
• Z: Casting resin insulated
• 1(2): Single-phase (1), or if applicable, two-phase (2)
• 1: Design sequence number

Construction of  JDZ1-1 Low Voltage Potential Transformer

The voltage transformer features an insulated structure cast with epoxy and a piled-shape core wound by primary and secondary windings. The primary and secondary windings are wound concentrically around the core. The structure is supported by a single frame, with the entire winding process protected by a shell. The secondary winding lead exits through the two high-tension terminal points labeled as A and X, while the primary winding lead is connected to high-tension terminals also labeled A and X. This designed structure will ensures the voltage transformer’s durability and reliability while maintaining safety standards.

Technical Data for JDZ Low Voltage Potential Transformer

1. Product Standard: GB1207-75 “Voltage Transformer”
2. Load Power Factor: COSφ = 0.8 (Lagging)
3. Usage in Humid and Tropical Regions: This type of transformer is also suitable for use in humid and tropical regions.
4. Dielectric Withstand Test: Primary coil to secondary coil and ground: 3kV for 1 minute. Primary coil to ground: 3kV for 1 minute. No breakdown or flashover phenomena during the test.
5. Specific Parameters, please refer to the table below.

Voltage Transformers Compliance with Chinese Standards (GB1207-75)

Rated voltage ratio (V)	380,660/100	660,1140/100	750,1500/100
Frequency (Hz)	50	50	50
Rated output (VA)	5	5	5
For accuracy class	5	5	5
Insulation level (kV)	0.66/3.6	1.14/3.6	1.5/3.6

Note: For special parameters and customization based on local environmental conditions and installation requirements, please contact our technical team for confirmation.

Outline and Dimensions of Installation

JDZ1(2)-1 Low Voltage Potential Transformer Overal Dimension

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 JDZ Low Voltage Potential Transformers

1. What are the primary applications of JDZ1-1 and JDZ2-1 Low Voltage Potential Transformers?
   These transformers are mainly used for electric energy metering, voltage control, and relay protection in low-voltage power systems with a rated voltage of up to 1kV.
2. What standards do the JDZ1-1 and JDZ2-1 transformers comply with?
   They comply with IEC60044-2 and GB1207-2006 standards, ensuring safe and reliable operation in power systems.
3. Can the JDZ1-1 and JDZ2-1 transformers be used in outdoor environments?
   No, these transformers are designed for indoor installation only.
4. What is the accuracy class of the JDZ1-1 and JDZ2-1 transformers?
   These transformers have an accuracy class of 5, which is suitable for general metering and protection applications.
5. What is the insulation level of the JDZ1-1 and JDZ2-1 transformers?
   The insulation level is rated at 0.66/3.6 kV, ensuring reliable dielectric strength and performance in typical indoor conditions.
6. Are there customization options available for these transformers?
   Yes, customization options are available for insulation levels, voltage ratios, and environmental conditions based on specific requirements. Contact the technical team for more details.

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