The power frequency withstand voltage test device is an advanced withstand voltage test equipment designed according to national power industry standards. It is used to conduct insulation strength tests on various electrical products, electrical components, and insulating materials under specified voltages to assess the insulation level of the products, detect insulation defects in the test items, and measure overvoltage capability.
The device consists of a YD series oil-immersed test transformer and an HDYD intelligent industrial control series voltage regulating control box and voltage regulator.
The HDYD fully automatic transformer station is a supporting equipment for lightweight test transformers independently developed and manufactured by our company. This control console features convenient use and maintenance, superior performance, reliable safety, an attractive and durable design, and easy mobility. It is an essential piece of equipment for power supply companies, large factories, metallurgical plants, power plants, railways, and other departments requiring power maintenance. Utilizing advanced microelectronic processing technology, the entire process can be pre-set, featuring a fully Chinese interface for simple and clear operation. All test items are automatically performed after setting, requiring no manual intervention.
What are the characteristics of intelligent industrial control computer-based power frequency withstand voltage testing devices, and what advantages do they have compared to traditional ones? We will explain the specific points below.
●One-click operation: After setting the correct test parameters, press the start button. The system automatically increases the pressure, automatically starts the withstand voltage timer, and automatically returns to zero when the time is up. After the test is completed, it automatically returns to zero and automatically records the test results. Users can choose whether to print the test report as needed. The entire test process requires no manual intervention, has a high degree of automation, and improves the scientific nature of the test and the safety of the operators.
● Multi-stage voltage boost function: A single operation can complete the entire withstand voltage curve test (setting one or more target voltages), greatly reducing labor intensity and improving efficiency;
●Comprehensive monitoring functions, capable of simultaneously monitoring and displaying transformer high and low voltage, current, and temperature.
● The target voltage, protection current, and withstand voltage time can be set arbitrarily;
● The fully digital calibration method eliminates the need for outdated potentiometer adjustments, making it extremely convenient for field use and ensuring easy control of accuracy;
● Status reminder function and guided operation allow for proficient operation even without a manual;
● The test result display function can automatically determine the test result (test passed or test failed) and reliably record the test voltage when the test sample experiences overcurrent, flashover or breakdown;
● Automatic timing function: During automatic control, the device automatically starts timing when the voltage automatically rises to the set value. When the timing time is up, the test result is displayed, and the device automatically returns to zero.
● Manual timing function: When manually controlled, the timer can be started manually, and the device will automatically return to zero when the withstand pressure time is up;
● Manual control mode: This mode is similar to a traditional electric voltage booster/buckler. The booster/buckler movement is controlled by independent buttons. The equipment automatically determines the upper/lower limit status and includes overvoltage and overcurrent protection. The entire testing process is manually controlled, offering flexibility and convenience.
●Access control interface: When the test area door is open or not closed, the system automatically cuts off the main circuit power (optional);
● Intelligent voltage boost rate control: When the voltage approaches the target voltage, the voltage boost rate will automatically slow down to prevent overvoltage or overshoot. Once the target voltage is reached, the voltage boost will be stopped.
● Printing function: Can print information such as test voltage, test current, test curve, withstand voltage time, product number, test personnel number, and test date;
● This is a fully Chinese-language software based on the Windows operating system. It features a user-friendly interface and simple operation. Information about the test specimen and test data (such as vehicle number display) can be entered via the keyboard. It also has a function to add new test specimens, offering good expandability. Functions include real-time data acquisition, current/voltage/time curves, data recording, data management, report printing, and historical data query. Test data and settings data can be automatically generated into reports. In administrator mode, test data can be transferred via USB and also supports wireless WIFI transmission based on the 802.11 protocol.
● Equipped with an emergency stop button in case of an accident;
●In case of overcurrent, flashover, breakdown, or other faults, the protection is immediate, accurate, and reliable;
● It employs a combination of hardware and software anti-interference technologies, ensuring stable performance and strong anti-interference capabilities. No abnormal phenomena such as system crashes, black screens, or screen distortions will occur during testing.
●Integrated structure with casters, reasonable design, sturdy and durable, convenient for on-site use.
(Supports the installation of monitoring software such as cameras, which can monitor the surrounding situation and test environment during the experiment.)
What are the parameter ranges for intelligent industrial control computer-type power frequency withstand voltage testing devices? What are the advantages of comparing them with basic models?
● Power supply voltage: AC380 ±10%, 50Hz ±1 Hz
● Rated power: 100kVA : 200 kVA
● Low voltage:
Rated voltage: 0.4kV
Measurement accuracy: 0.5 %FS ±3 digits, resolution: 0.1V
● Low voltage current:
Measurement accuracy: 0.5 %FS ±3 digits, resolution: 0.1A
● High voltage:
Rated voltage: AC 100kV;
Measurement accuracy: 0.5 %FS ±3 digits, resolution: 0.1kV
● High voltage current (leakage current):
Rated current: AC 1000mA, AC 2000mA
Measurement accuracy: 1.5 %FS ±3 digits, resolution: 1mA
● Timing length: 0 ~ 9999 seconds
● Operating environment: Ambient temperature 0～50℃, relative humidity ≤85%RH
