Overview of JSZV12-10R Combined Voltage Transformer

The JSZV12-10R combined voltage transformer is a high-performance indoor Combined Voltage Transformer with Fuse, designed for 50Hz power systems operating at a rated voltage of 10kV or below. This advanced Combined Voltage Transformer ensures reliable voltage measurement, energy metering, and insulation protection for a variety of applications. Featuring a “V” wiring configuration for three-phase systems, it can also function as two independent single-phase units, providing excellent flexibility for diverse operational needs.

Engineered for dual-purpose outputs, the JSZV12-10R Combined Voltage Transformer 100V for precision measurement, and 220V as an auxiliary power source for control mechanisms, offering enhanced functionality. Its fully enclosed structure is crafted with epoxy resin casting, utilizing high-quality cold-rolled silicon steel cores. This design provides superior insulation performance, moisture resistance, and aging durability, ensuring stable operation in demanding environments.

For safety and reliability, each primary winding in phases A, B, and C is equipped with integrated fuses to protect against short circuits. The secondary terminal design allows for quick and easy replacement of fuses without disrupting operations. This ensures uninterrupted performance and simplifies maintenance.

With its compact design, robust construction, and dual-functionality, the JSZV12-10R combined voltage transformer is an ideal choice for 10kV indoor systems requiring precise voltage measurement, operational reliability, and long-lasting performance.

Key Applications and Features:

• Designed for 10kV indoor power systems
• Dual secondary outputs: 100V for measurement and 220V for auxiliary power
• Fully enclosed epoxy resin design for superior insulation and moisture resistance
• Integrated short-circuit protection fuses for enhanced safety
• Easy maintenance with accessible secondary terminal design

Type Designation for JSZV12-10R

• J: Voltage transformer
• S: Three-phase
• Z: Casting resin insulated
• V: “V” wiring manner
• 12-10: Voltage grade (kV)
• R: With fuse

This designation provides a clear overview of the structural and functional characteristics of the JSZV12-10R voltage transformer.

Operating Conditions for JSZV12-10R

1. Temperature: -5°C to +40°C.
2. Altitude: ≤1,000 meters.
3. Humidity: ≤80% relative humidity.
4. Environment: Free from corrosive gases, vapors, and deposits.
5. Dust: No conductive dust (e.g., carbon, metal).
6. Vibration: No severe vibrations or impacts.

For specific requirements, contact our technical team.

Technical Data for JSZV12-10R Voltage Transformer

1. GB/T20840.3-2013: Electromagnetic Voltage Transformers
2. GB/T20840.4-2015: Combined Transformers
3. GB311.1-2012: Insulation Coordination of High Voltage Transmission Equipment
4. JJG314-2010: Verification Regulations for Measuring Voltage Transformers

Form 2: Technical data of voltage transformer for circuit breaker operating powe

Type	Rated Voltage Ration (V)	Accuracy Class and Rated Output (VA)		Short Time Max Output Power (VA)	Rated Insulation Level (KV)
JSZV12-10R	10/0.1/0.22	0.2	30	600	12/42/75
JSZV12-10R	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

• Voltage resistance should not exceed 15% for circuit breaker operating power.

For detailed parameters, refer to:

• Form 1: Technical data of voltage transformer for measuring.
• Form 2: Technical data of voltage transformer for circuit breaker operating power.

Type	Rated Voltage Ratio (V)	Accuracy Class & Rated Output (VA)		Max Output (VA)	Rated Insulation Level (KV)
		Class 0.2	Class 0.5
JSZV12-10R	10000/100	20	60	500	12/42/75
JSZV-10-10R	10000/100	20	60	500	12/42/75
JSZV12-6R	6000/100	20	60	500	7.5/32.60

Outline and Dimensions

Principle diagram

 

Ordering Guidelines and Special Requirements

Before placing an order for the JSZV12-10R Combined Voltage Transformer, please confirm the following:

Ordering Guidelines:

1. Voltage and Configuration: Ensure compatibility with 10kV systems and “V” wiring or single-phase applications.
2. Application: Specify use for voltage measurement, metering, or auxiliary power (100V/220V outputs).
3. Operating Conditions: Verify site conditions (temperature, humidity, altitude) meet the specifications.
4. Safety Features: Confirm fuse protection and ease of maintenance requirements.

Special Requirements:

For customized needs, such as:

• Extended temperature ranges
• Custom outputs or configurations
• Adaptations for harsh environments

Contact our technical team for tailored solutions.

FAQs for JSZV12-10R Combined Voltage Transformer

1. What makes the JSZV12-10R suitable for 10kV indoor systems?
The transformer features dual secondary outputs (100V and 220V), superior insulation, and integrated fuse protection, ensuring reliable performance in high-voltage environments.

2. Can the JSZV12-10R be customized for unique applications?
Yes, the transformer can be customized for specific voltage ratios, extended temperature ranges, and harsh environmental conditions.

3. What safety features are included in the JSZV12-10R?
The transformer includes integrated fuse protection for short circuits, and the design ensures easy replacement of fuses without operational disruption.

4. What are the typical applications of the JSZV12-10R transformer?
It is ideal for voltage measurement, energy metering, and providing auxiliary power in indoor 10kV three-phase AC power systems.

5. How does the epoxy resin design benefit the transformer?
The epoxy resin casting provides excellent insulation, moisture resistance, and aging durability, making it suitable for demanding operational conditions.

6. What maintenance is required for the JSZV12-10R?
The transformer is low maintenance, with routine inspections and occasional fuse replacements being sufficient to ensure optimal performance.

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