Description

The **JSZV12-20R** Three-Phase Epoxy Resin Combined Voltage Transformer with Fuse is designed for high-performance use in XGW-12 outdoor AC fixed switchgear systems. Operating at 50Hz and rated up to 20kV, this transformer provides accurate voltage measurement, energy metering, and insulation protection. Ideal for industrial applications, urban and rural substations, and power distribution networks, it integrates active and reactive energy meters for comprehensive metering solutions.

With a V-wiring configuration, the JSZV12-20R is versatile, functioning both as a three-phase unit or as two independent single-phase transformers. The design includes integrated fuse protection, ensuring enhanced safety by safeguarding against short circuits. Its fully enclosed epoxy resin casting provides superior insulation, resistance to aging, and durability in challenging environments, minimizing maintenance needs and offering long-term reliability.

Type Designation for JSZV12-20R Combined Voltage Transformer

• J: Voltage transformer
• S: Three-phase
• Z: Casting resin insulated
• V: « V » wiring manner
• 12-30: Voltage grade (20kV)
• R: With fuse

Structural Overview of JSZV12-20R

The **JSZV12-20R** transformer features a compact and reliable design. It utilizes a fully enclosed epoxy resin structure with integrated fuse protection in the primary windings. The secondary coil features adjustable taps for precise current adjustments, and the V-wiring configuration ensures both flexibility and accuracy. It is designed to deliver 100V for measurement purposes, while also providing 110V and 220V outputs for auxiliary power, making it ideal for a variety of operational needs.

Operating Conditions for JSZV12-20R Voltage Transformer

• Temperature Range: Operates reliably between -5°C and +40°C.
• Altitude: Suitable for installations up to 1,000 meters.
• Humidity: Designed for environments with humidity levels ≤80%.
• Environmental Compatibility: Free from corrosive gases, vapors, and sediment buildup.
• Dust Resistance: Not for use in areas with conductive particles like carbon or metallic dust.
• Stability: Can withstand normal operational conditions without exposure to strong vibrations or impacts.

Technical Parameters of JSZV12 Voltage Transformer

• Load Power Factor: COSΦ = 0.8 (lagging).
• Altitude: ≤1,000m, complies with pollution level II.
• Standards Compliance: Conforms to GB1207-1997 (Voltage Transformers).

Rated Technical Data

Type	Rated Voltage Ratio (V)	Accuracy Class & Rated Output (VA)		Max Output (VA)	Rated Insulation Level (kV)
		Class 0.2	Class 0.5
JSZV12-20R	10/0.1/0.22	0.2	30	600	12/42/75
JSZV12-20R	10/0.1/0.1	0.2	20	2×400	12/42/75
JSZV12-6R	6/0.1/0.31	0.2	20	2×400	7.2/32.60
JSZV12-3R	3/0.1/0.1	0.2	20	2×400	3.6/25/40
JSZV12-10R	10/0.1	0.2	20	500	12/42/75
JSZV12-6R	6/0.1	0.2	20	500	7.2/32.60

Outline and Dimensions

Principle Diagram

Ordering Guidelines

• Voltage and Configuration: Ensure compatibility with 10kV systems and « V » wiring or single-phase applications.
• Application: Specify use for voltage measurement, metering, or auxiliary power (100V/220V outputs).
• Operating Conditions: Verify site conditions (temperature, humidity, altitude) align with specifications.
• Safety Features: Confirm fuse protection and maintenance requirements.

Special Requirements:

For customized solutions, please contact our technical team for tailored assistance.

FAQs for JSZV12-20R Combined Voltage Transformer

1. What are the primary applications of the JSZV12-20R Combined Voltage Transformer?
The JSZV12-20R is designed for XGW-12 outdoor AC fixed switchgear, making it ideal for voltage measurement, energy metering, and auxiliary power supply in 10kV-20kV power systems.

2. How does the integrated fuse protection enhance system safety?
The built-in fuse safeguards the primary winding against short circuits, ensuring safety and reducing the risk of system failures or damage.

3. Can the JSZV12-20R operate in high-humidity environments?
Yes, it is designed for environments with relative humidity levels not exceeding 80%, provided there are no corrosive substances or conductive dust.

4. What customization options are available for the JSZV12-20R?
Customization includes extended temperature ranges, unique voltage/output configurations, and adaptations for specific environmental conditions like high altitudes.

5. How does the transformer ensure reliable insulation performance?
The epoxy resin casting provides superior insulation, moisture resistance, and protection against aging, making it suitable for long-term operation in demanding environments.

6. Why should I choose the JSZV12-20R over traditional voltage transformers?
The JSZV12-20R offers a compact, dual-functional design with enhanced safety, easy maintenance, and compliance with international standards, making it a cost-effective and reliable solution for modern power systems.

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