Welcome to TradeChina
AC Resonance Test/ Resonant Frequency Test System Device Set
FOB Reference Price
Purchase quantity ()
Minimum order quantity
Payment
Meorient Import & Export Co.LTD
China - Hangzhou
Trading Company
Trade Capacity
Export Percentage
Nearest Port
Hangzhou,Shanghai
Accepted Delivery Terms
Employees
5-10人
Accepted Payment Currency
USD,CNY
Average Lead Time
45 Day(s)
Certifications
Product Specifications
--Product Description
Products Description
AC Resonance Test/ Resonant Frequency Test System Device Set
Model BPXZ-88kVA44kV
The main functions and technical features of our series resonant test system:
(1) The device has over-voltage, over-current, zero start, system detuning and flash-over protection function. The over-voltage and over-current protection value can be set according to user's needs, and the flash-over protection action to protect the product.
(2) Small volume, light weight, very suitable for the operation of the people on the spot.
(3) The device has three working modes, which is convenient for users to choose flexibly according to the field conditions and improve the test speed.
The working modes are: full automatic, manual and automatic tuning manual boost mode.
(4) The data can be stored and printed in different places. The data number is numbered is convenient to help the user to identify and find the data.
(5) When the device automatically sweeps the frequency, the starting point of frequency can be set arbitrarily in the specified range. Meanwhile, the LCD screen displays the scanning curve, which is convenient for users to directly understand whether the resonance point is found .
(6) Using the DSP technology, it can easily increase and decrease the function and upgrade according to the needs of the user, and also make the human-computer exchange interface more humanized.
(7) The required power supply capacity is greatly reduced. The series resonant power supply produces high voltage and high current by reactor and the capacitance of the tested product in resonant. In the whole system, the power supply only needs to provide active power consumption of the system, therefore, the power required for the test is only 1/Q of the test capacity.
(8) The weight and dimension of the equipment are greatly reduced. The series resonant power supply not only eliminates the bulky high-power voltage regulator and the ordinary high-power frequency test transformer, but also requires the 1/Q of the resonant excitation power to reduce the weight and dimension of the system, which is generally 1/10-1/30 of the common test device.
(9) Improve the waveform of the output voltage. The resonant power supply is a resonant filter circuit, which can improve the waveform distortion of output voltage and get a good sinusoidal waveform, which effectively prevents the peak breakdown of the harmonic peak to the test product.
(10) Prevent large short circuit current burn fault point. In the series resonant state, when the insulation weakness of the test product is burn down, the circuit detuns immediately and the circuit current drops rapidly to 1/Q of the normal test current. When parallel resonant or test transformer is used to withstand voltage test, the breakdown current will increase dozens of times. Compared with the two way, the short-circuit current and breakdown current are hundreds of times different. Therefore, the series resonance can effectively find the weakness of the insulation, and there is no hidden trouble in the fault point of the large short circuit current burn.
(11) There will be no recovery over-voltage. The sample breakdown, due to the loss of the resonant conditions, high voltage arc disappeared immediately, high voltage arc also immediately extinguished, and the recovery voltage of the re establishment is a long process, it is easy to disconnecting the power before reach the flash-over voltage again, the voltage recovery process is a kind of energy accumulation batch process, the process is long, and there will be no recovery over voltage.
Product Paramenters
Rated capacity: | 88kVA |
Rated voltage: | 22kV；44kV |
Rated current: | 6A；2A |
Accuracy: | system valid value 1.5 |
Frequency: | 30-300Hz |
Output waveform: | sine wave |
Power factor: | Q≥30 (f=45Hz) |
Waveform distortion rate: | ≤1% |
Power supply: | single phase 220V or 3 phase 380V, frequency 50Hz |
Working time: | 60min under rated load, 1.1 times over voltage for 1min |
Temperature rise: | 60min under rated load, temperature rise ≤65K |
Protection functions: | over current, over voltage and flashover protection for measured equipments |
Temperature: | －20℃-55℃ |
Relative humidity | ≤90%RH |
Altitude | ≤3000m |
Company Profile
Wuhan Longdian Electrical equipment Co., Ltd.
Wuhan Longdian Electrical Equipment Co., Ltd ，established in 2007 ，located in the Donghu Hight and New Technology Development Zone，Wuhan city，Hubei Province，China.
Longdian Electric is a collection of R&D, production, sales in the integration of power testing equipment manufacturers and service providers.
Longdian Electric mainly enter into business and keep a long-term relationship with following companies or sectors ：power generation, power supply, power consumption departments, water conservancy, petroleum, railway, mining, chemical, scientific research institutions and other production enterprises of the power system.
The main products including: HV Switch Tester, Relay Protection Tester, Transformer Tester, Circuit Resistance Tester and other high-voltage test equipment and testing Instrumentation. And we also according to the customers‘ needs to provide suitable and professional solutions of power testing equipment.
Longdian Electric fully following the modern management system and strictly implementing the ISO9001 quality system certifications. So Longdian obtains a successively new technology patents:
"High Voltage Switching Characteristic Tester", "Relay Protection Tester", "Mutual Inductor Tester", "Transformer Tester", "Withstand Voltage Tester", "Battery Tester", "Cable Failure Tester" , "High Current Generarator", which make the product quality management and production process are effectively controlled, and the high quality and reliability of the products and excellent after-sales service are guaranteed.
After years of development, Longdian Electric has always adhered to the corporate tenet of "Quality First, Honesty First, Customer First", focusing on reputation and efficiency, and striving to meet the new needs and requirements of customers. It has become a well-known manufacturer and supplier of domestic power test equipment.
At the same time, Longdian Electric responded to the “One Belt, One Road Initiative” for helping Longdian Electric to consolidate the traditional markets and key markets and to open up new markets. And our products have been successfully exported and got good feedbacks in following countries and regions :the United Kingdom, the Netherlands, Chile, Indonesia, Japan, Argentina, Australia, Russia, Vietnam, South Korea, etc. Presenting a good situation of domestic and international companies advancing together.
Therefore, Longdian Electric sincerely welcomes all-round cooperation with colleagues from all social circles , and work together to create a better future.
Certifications
Product packaging
No desirable products?
Sourcing assistant>
How to start your business
- Step 1Find your interested products by search keywords
- Step 2Contact the supplier by clicking ”Enquire” or “request meeting” button, otherwise, you also could consult our import consultant.
- Step 3After verifying your email, get response from suppliers or our trade manager will contact you as soon as possible
- Step 4Set up meeting with the Chinese supplier without language barrier