Product Introduction
のinflatable no partial discharge test transformer is a no partial discharge power frequency test transformer designed, developed, and manufactured by our company through the introduction and absorption of advanced foreign technology. It is widely used in manufacturers of electrical appliances, cables, motors, transformers, transformers, insulation materials, and related high-voltage components, as well as in high-voltage laboratories of power, scientific research, and universities. inflatable no partial discharge test transformer manufactures can perform partial discharge and power frequency withstand voltage tests on its products.
技術的パラメータ
パラメーター | Value |
定格出力 | 50-1200kVA |
入力電圧 | 380V |
出力電圧 | 50-1200kV |
実行時間 | 5分以内 |
測定精度 | ≤1.5% |
Partial discharge capacity | ≤5Pc |
Protection function | Overcurrent and voltage protection alarm automatically return to zero |
製品の特徴
1. Filled with SF6 gas, which features high insulation strength, as the insulating medium.
2. Compact and lightweight design with high-quality craftsmanship, attractive appearance, and easy handling.
3. Benefiting from the arc-extinguishing properties and specialized structural design involving SF6 gas, the unit exhibits low partial discharge levels, measuring ≤5 PC at rated voltage.
4. The inflatable no partial discharge test transformer testing process is simple, intuitive, and user-friendly.
5. Effectively eliminates clutter interference from the power supply.
6. Integrates automatic control technology, offering a high degree of automation and strong anti-interference capability.
7. Equipped with a fast-acting electronic protection device, ensuring high reliability.
Product Functions
1. No Partial Discharge Output: The inflatable no partial discharge test transformer factory is designed to have a very low internal partial discharge level, with a guaranteed partial discharge capacity of ≤5pC at rated voltage. This is crucial for testing equipment where even minor PD activity must be accurately measured and attributed to the test object itself, not the power source.
2. High-Voltage AC Output: It generates a high-voltage AC output for power frequency withstand voltage tests. The series offers a wide range of ratings, with capacities from 50kVA up to 1200kVA and output voltages from 50kV up to 1200kV.
3. SF6 Gas Insulation: The inflatable no partial discharge test transformer manufactures uses SF6 gas as its primary insulating and cooling medium. This provides superior insulation strength and arc-quenching properties compared to air or oil.
4. Comprehensive Protection: It is equipped with protection functions including overcurrent and voltage protection with an alarm, as well as an automatic return-to-zero function to enhance safety.
5. Simple and Intuitive Operation: The experimental process is designed to be simple, intuitive, and easy to operate, with automatic control technology to improve efficiency and reduce operator workload.
Product Advantages
1. Extremely Low Partial Discharge: The ≤5pC partial discharge level is its most critical advantage. It ensures that the test voltage source does not introduce its own PD signals, allowing for accurate assessment of the test object's insulation condition without interference.
2. Excellent Insulation Performance: The use of SF6 gas provides superior dielectric strength, allowing for a compact, lightweight design compared to oil-filled transformers of similar ratings.
3. High Reliability and Clear Output: The SF6 insulation and advanced design result in a high craftsmanship level, beautiful appearance, and reliable operation. The inflatable no partial discharge test transformer supplier can effectively eliminate clutter interference from the power supply, ensuring a clean output.
4. Portability and Ease of Use: The SF6-filled design results in a smaller size and lighter weight, making handling and on-site use much easier than oil-filled equivalents. The design also features a fast electronic protection device for enhanced safety.
Application Scenarios
1. Manufacturing Quality Control: Used by manufacturers of high-voltage electrical appliances, cables, motors, transformers, busbars, and insulation materials for factory acceptance and partial discharge testing of their products.
2. High-Voltage Laboratories: Employed in research and development laboratories of power utilities, scientific institutions, and universities for conducting advanced insulation research, dielectric testing, and type testing on high-voltage components and systems.
3. Partial Discharge and Withstand Testing: Used to perform both partial discharge measurements and power frequency withstand voltage tests on a wide range of high-voltage equipment, including instrument transformers, power capacitors, and GIS components.
Working principle
The control panel (box) with overcurrent automatic tripping and zero position interlocking device to prevent sudden pressurization of the power input is regulated by an autotransformer to input voltage into a non partial discharge filter isolation filter transformer, and then output from the non partial discharge filter isolation filter transformer
To test the primary winding of the transformer, according to the principle of electromagnetic induction, the secondary (high voltage) winding can obtain an equal multiple of voltage amplitude - power frequency high voltage - based on the ratio of its turns to the primary winding.
FAQ
1. What makes the YDQW series different from a standard test transformer?
The key difference is its ultra-low partial discharge level (≤5pC) . Standard test transformers may have higher internal PD that interferes with measurements. The YDQW is specifically designed and manufactured to minimize its own PD, making it essential for sensitive partial discharge diagnosis on test objects.
2. What does the "partial discharge capacity" of ≤5pC mean?
It means that under its rated voltage, the transformer itself will generate a partial discharge level of no more than 5 picocoulombs (pC) . This is a very low threshold, ensuring that any partial discharge detected during a test is primarily coming from the equipment being tested, not the transformer.
3. Why is SF6 gas used as the insulating medium?
SF6 gas is used because of its excellent dielectric strength and arc-quenching properties. This allows the transformer to be significantly smaller and lighter than an oil-insulated unit of the same voltage and power rating, and it is non-flammable, contributing to its safety and suitability for various applications.
4. What are the main technical specifications?
The series covers a wide range, with rated capacities from 50 to 1200 kVA and output voltages from 50 to 1200 kV. It operates with an input voltage of 380V, has a measurement accuracy of ≤1.5%, and is designed for a running time of ≤5 minutes.
5. Is the transformer easy to use and maintain?
Yes, the inflatable no partial discharge test transformer manufactures is designed for ease of operation. It features an automatic control system, a simple and intuitive experimental process, and effective clutter elimination from the power supply. Its construction results in a lightweight and compact unit that is easy to handle. The SF6 insulation also means it requires less maintenance compared to oil-filled transformers.
