Transformer
Your Professional Transformer Supplier
Xi'an Tianhong Electric Co., Ltd. is committed to the research and manufacture of high-quality power transmission and distribution equipment, with the company's leading products comprising various types of resin poured and drying transformers, oil-immersed transformers, American (Chinese) box transformers, box substations, and various high and low voltage distribution cabinets such as electric power, non-grade alloys, on-load voltage regulation, rectification, and marine (offshore platform) air and water cooling.
Why Choose Us
Advanced Production Technology
We utilize cutting-edge equipment, including low-voltage automatic foil winding machines, high-voltage intelligent winding machines, and Fluke power analyzers, sourced from leading international suppliers like the U.S. and Germany, ensuring precise and efficient manufacturing.
Strong R&D and Innovation Capabilities
Building on our military technology heritage, we continuously enhance our technological innovation in transformer and substation production, staying at the forefront of industry advancements and offering tailored solutions for power transmission and distribution.
Quality Assurance and Certification
Our adherence to ISO9001:2015, ISO14001:2015, and ISO45001:2018 standards ensures that all products undergo rigorous quality control, meeting international standards for quality, environmental safety, and occupational health.
Skilled Workforce
Our highly qualified team includes experts with extensive experience in power equipment, as well as young talents, fostering a dynamic and forward-thinking approach to product development and customer service.
Dry-Type Drive Isolation Transformer
Dry-Type Drive Isolation Transformer are an essential part of electrical systems that utilize variable frequency drives. VFDs are used to control the speed of motors in various applications, such as HVAC systems, pumps, and conveyors. However, VFDs are known to produce harmonic distortion, which can damage other electrical equipment and cause power quality issues. This is where drive isolation transformers come in, as they are designed to mitigate these issues and provide a stable power source to the VFD.
|
Model |
ZTSCF |
|
Rated Capacity |
315-10,000 kVA |
|
Voltage |
0.5-35 kV |
|
Frequency |
50 Hz or 60 Hz |
|
Insulation Class |
F or H |
|
Cooling Method |
AN/AF |
|
Connection Group |
Ye1, Ye11 |
|
Protection Class |
IP00, IP20, IP21, IP30, or as required |
Advantages Of Dry-Type Drive Isolation Transformer
Better Power Quality
Isolation transformers help to improve power quality by decreasing the amount of electrical noise and providing a more consistent voltage output. This helps ensure that any device connected to the transformer receives clean, consistent power without any interference or fluctuation in voltage.
Less Noise Disruption
Isolation transformers can reduce noise disruption by providing a more consistent voltage output. This helps to ensure that any device connected to the transformer receives clean, consistent power without any interference or fluctuation in voltage.
Harmonics Correction
The operation of non-linear loads, such as computers and other electronic devices, can cause harmonics. Harmonics can cause several issues, such as voltage fluctuations, power disturbances, and reduced efficiency.
Earthing Failure Prevention
Earthing failure is a common issue for electrical systems and can be caused by a number of different factors. This can cause potential hazards such as power surges, equipment failure, and even fire.
Reduction in Power Surges
Power surges occur when an unexpected increase in the electrical current passes through a circuit. These surges can cause potentially dangerous situations, such as fires and equipment failure, as well as a result in device malfunctions.
Improved Safety
Help protect people and equipment by providing complete electrical isolation between the two circuits. This helps prevent electric shocks and other hazards and provides extra protection against potential power surges.
Types of Dry-Type Drive Isolation Transformer
Single-Phase Transformers
Single-Phase Drive Isolation Transformers are designed to supply power to AC and DC variable speed drives that require a single-phase power source. They are commonly used in applications where the load is relatively small and the power requirement is low. Single-Phase Transformers are also used in applications where the voltage requirement is low.
Three-Phase Transformers
Three-Phase Drive Isolation Transformers are designed to supply power to AC and DC variable speed drives that require a three-phase power source. They are commonly used in applications where the load is relatively large and the power requirement is high. Three-Phase Transformers are also used in applications where the voltage requirement is high.
Applications of Dry-Type Drive Isolation Transformer
Industrial Applications
Drive isolation transformers are commonly used in mining, oil and gas, and pumping stations. They are also used in manufacturing and industrial facilities. In these applications, the transformers help to protect the equipment from voltage distortions and harmonics, which can cause damage to the equipment and reduce its lifespan.
Commercial Applications
Drive isolation transformers are also used in commercial applications. They are commonly used in elevators, escalators, and other types of machinery. In these applications, the transformers help to protect the equipment from voltage distortions and harmonics, which can cause damage to the equipment and reduce its lifespan.
Performance Characteristics of Dry-Type Drive Isolation Transformer
Efficiency Metrics
Drive isolation transformers have high efficiency, which is typically above 97%. This is due to the fact that they are designed to reduce energy loss and improve power quality. The efficiency of a transformer is the ratio of the output power to the input power. Transformers with high efficiency consume less power and generate less heat, which reduces the operating cost and extends the lifespan of the transformer.
The efficiency of a transformer is affected by various factors, including the design, size, and load. Drive isolation transformers are specifically designed to handle the mechanical stresses, voltage distortions, and harmonics associated with AC and DC variable speed drives. They have high-reactance coils to control current flow and increased airflow for extra cooling. This results in a transformer that is highly efficient and reliable.
Thermal Management
Thermal management is an important consideration when designing and operating drive isolation transformers. The temperature of the transformer affects its efficiency, lifespan, and safety. Transformers generate heat due to the resistance of the windings and the core losses. The heat must be dissipated to prevent the transformer from overheating.
Drive isolation transformer are designed with thermal management in mind. They have added coil bracing to withstand the mechanical forces caused by severe SCR duty cycles. They also have symmetrically placed taps to provide flexibility in voltage adjustment. Additionally, they are designed to prevent overheating due to harmonics, which can cause excessive heating of the transformer.
Installation Guidelines
Safety Procedures
When installing a drive isolation transformer, it is important to follow all applicable safety procedures. This includes wearing appropriate personal protective equipment (PPE) such as gloves, eye protection, and insulated clothing. It is also important to ensure that the transformer is properly grounded and that all wiring is done in accordance with local and national electrical codes.
Wiring and Connection
When wiring a drive isolation transformer, it is important to follow the manufacturer’s instructions carefully. This includes using the correct wire size and type, and ensuring that all connections are tight and secure. It is also important to ensure that the transformer is properly grounded and that all wiring is done in accordance with local and national electrical codes.
In addition, it is important to ensure that the transformer is properly sized for the motor drive system. This includes selecting the correct kVA rating based on the motor horsepower, and ensuring that the transformer is braced to withstand the mechanical stresses of current reversals and short circuits associated with SCR (Silicon Controlled Rectifier) drives.
By following these guidelines, the installation of a drive isolation transformer can be done safely and effectively, ensuring reliable and efficient operation of the motor drive system.
Common Issues And Solutions
Overheating
Overheating is one of the most common issues with drive isolation transformers. It can be caused by a variety of factors, such as overloading, poor ventilation, or a malfunctioning cooling system. To resolve this issue, the transformer should be inspected for any signs of damage, and the cooling system should be checked to ensure it is functioning correctly.
Noise
Noise is another common issue with drive isolation transformers. It can be caused by loose connections, defective wiring, or damaged insulation. To resolve this issue, the transformer should be inspected for any signs of damage, and the wiring and connections should be checked for any signs of wear or damage.
Voltage fluctuations
Voltage fluctuations can be caused by a variety of factors, such as overloading, voltage spikes, or poor grounding. To resolve this issue, the transformer’s wiring and connections should be checked for any signs of wear or damage, and the grounding system should be inspected to ensure it is functioning correctly.
Maintenance
Inspect the transformer for any signs of physical damage, such as cracks or dents.
01
Check the transformer’s cooling system, such as fans or heat sinks, to ensure they are clean and functioning correctly.
02
Inspect the transformer’s wiring and connections for any signs of wear or damage.
03
Check the transformer’s insulation resistance to ensure it is within the manufacturer’s specifications.
04
Monitor the transformer’s temperature to ensure it is operating within its rated temperature range.
05
FAQ
As one of the leading transformer manufacturers and suppliers in China, we warmly welcome you to buy customized transformer made in China here from our factory. Quality products and reasonable price are available.