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Current and Potential Transformer

Your Professional Current And Potential Transformer Supplier

 

Wenzhou Shuowei Electric Co., Ltd. （SUVELL）is a high-tech enterprise specializing in the research, development, production and sales of transformer accessories, switch cabinet accessories, cable accessories, power fittings and transmission line accessories.

Our product portfolio includes pad-mounted transformers, pole-mounted transformers, oil-immersed load break switches, switchgear systems, and switchgear components.

 

 
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Why Choose us
 
 

Quality Assurance

The company is equipped with comprehensive production facilities and a robust testing system to ensure that all products meet international standards and satisfy customer requirements.

 
 
 

Professional Solution

With extensive experience and personalized one-to-one service, we are capable of assisting you in selecting suitable products and providing professional answers to technical inquiries.

 
 
 

Reasonable Price

Supported by a dedicated procurement and cost-control team, we strive to minimize production costs and optimize profit margins in order to offer you competitively priced solutions.

 

 

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Benefits of Current And Potential Transformer
 

Current transformer have many advantages, including:

 

Accuracy High Precision: Current transformers are known for their exceptional accuracy in measuring current. They provide reliable and precise readings even under varying load conditions.

 

Safety Isolation: CTs provide electrical isolation between the primary circuit (high current side) and the secondary circuit (low current side). This isolation enhances safety by preventing high currents from reaching measuring and monitoring equipment.

 

Wide Range of Applications Versatility: Current transformers are suitable for a wide range of applications, from protecting electrical equipment to monitoring power consumption in industrial processes and renewable energy systems.

 

Reliability Durability: CTs are robust and designed for long-term use. They can withstand harsh environmental conditions and continue to provide accurate measurements.

 

Easy Installation Simplicity: Current transformers are relatively easy to install and maintain, making them accessible to a broad range of users.

10kV Current Transformer

 

12kv Post Type Potential Transformer with Protection

Potential transformer have many advantages, including:

 

Safe Voltage Measurements: Potential transformers provide a means to safely measure high voltages by stepping them down to manageable levels. This reduction is vital in preventing accidents and ensuring that voltages can be accurately monitored with standard measuring equipment.

 

Protection against Electrical Hazards: By facilitating safe measurements, potential transformers help to mitigate the risks associated with high-voltage electricity. They prevent direct exposure to hazardous voltages, thereby protecting both personnel and equipment from potential electrical faults and failures.

 

Accurate Voltage Measurement: In industrial environments, accuracy in voltage measurement is crucial for the optimal performance and protection of electrical systems. Potential transformers are engineered to deliver high precision in such measurements.

 

The Working Principle Of Current And Potential Transformers

 
Potential Transformer

Firstly in potential transformer connections, a higher voltage primary circuit is supplied with the primary winding. As current passes through this winding, a magnetic field is generated within the core of the transformer. In this case, the magnetic field induces a voltage in the secondary winding.

 

In the situation of an autotransformer, we calculate the resultant voltage by looking at the turns ratio of primary to secondary (the greater the windings in the primary coil, the less the voltage). To illustrate, a 10:1 ratio in windings means a voltage of 10,000V will result in only 1,000V on the secondary coil.

 

The secondary coil (depending on the reduced voltage) feeds into circuits containing voltmeters or relays. So in practice, large voltages can be measured without worrying too much about the risks of direct contact.

Current Transformer

A current transformer (CT) is a very important electrical component that is used to measure the current in an electrical circuit. You can think of it as a transformer that is specifically designed to measure current instead of voltage.

 

Current transformers work by taking a small sample of the current in the circuit and transforming it into a voltage. This voltage is then measured by a voltmeter and used to calculate the current in the circuit.

 

Current transformers are often used in conjunction with voltage transformers to create a complete transformer assembly. This assembly is then used to measure the voltage and current in an electrical system.

 

Well, the primary (or input) side of the transformer is connected to the source of the current that you want to measure. The secondary (or output) side is connected to the meter. When current flows through the primary side, it induces a current in the secondary side. This induced current is what is measured by the meter.

 

 

Installation Precautions

Before using any current transformer, it’s important to understand its proper installation considerations. This is because improper installation may lead to a wide range of problems, including inaccurate readings and potentially unsafe conditions.

 

To prepare for the installation process, make sure to read the instructions carefully and check the device for any electrical or structural defects. Also, it’s essential to consider the nominal power of the current transformer so that it is matched with a compatible circuit breaker.

 

Additionally, pay attention to the rated primary current of the device; it should match with other equipment connected in series and parallel in order to ensure properly combined measurement accuracy. When installing multiple current transformers, make sure they are located away from each other so that their magnetic fields do not interfere with each other.

 

By paying attention to these key factors during installation, you can ensure that your current transformer works correctly and provides accurate readings.

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Additional Information

 

 

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FAQ

 

 

Q: Why is it important to use potential and current transformers when taking measurements?

A: These instrument transformers are indispensable for accurate voltage measurement and electrical system protection. As a device that steps down high voltages to a lower, safer level without altering the frequency, potential transformers ensure safe measurement and monitoring, a critical aspect in industrial operations.

Q: What is the difference between a potential transformer and a current transformer?

A: The current transformer and potential transformer (also called voltage transformer) are both measuring devices. A CT lowers the current signals for measurement purposes, while a PT lowers high voltage values into lower ones. The transformers are designed to measure whether power systems are both accurate and safe.

Q: What should you never do with a current transformer?

A: A CT should never be left open when energized, as the secondary will produce dangerously high voltage. Such high voltage can destroy insulation, cause electric shock, or damage other connected devices.

We're professional current and potential transformer manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale bulk current and potential transformer in stock here from our factory. Contact us for quotation.

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