Overview
To enhance system integration, the structural design adopts a standardized integrated form, consolidating the test power supply, primary and secondary control circuits, instrumentation measurement circuits, and data processing modules within a single cabinet. (Note: Specific system implementations may vary based on requirements.)
The low-voltage multi-circuit temperature rise system employs an automatic voltage regulation device. Leveraging rapid advancements in power electronics technology and actively incorporating various cutting-edge techniques, our company has independently developed this new generation of comprehensive test systems. The test system structure has been significantly simplified, resulting in greater convenience and efficiency.
System control operations are executed through a PLC (Programmable Logic Controller) and computer software interface. Optimized software design enables automatic completion of test items. The integrated data management system automatically saves test results and generates reports for each test item, eliminating tedious manual recording and data entry by test personnel and enhancing testing efficiency.
This system achieves the goal of providing single-phase test power using a single-phase voltage regulator. It enables testing of low-voltage switches within the same device, reducing the number of required equipment.
System protection employs multiple safeguards including software, hardware, and system interlocks. It also integrates with the physical door interlock of the test station. When the physical door is open, the system cannot execute any test operations. The bench features an integrated design, with primary circuits and secondary control circuits separated in the control section, significantly enhancing safety for both test personnel and the products under test.
This system employs fully computerized operation, enabling testing via mouse or touchscreen. Post-test data is automatically uploaded to the local database and backend information management system. When querying raw data, simply enter the data ID to automatically retrieve the information.
Input the low-voltage switch test sample number to retrieve basic parameters (rated capacitance, rated voltage, rated current, and rated voltage of the switch). The system automatically calculates corresponding test parameters, which can also be manually adjusted:
Fully automatic test power supply elevation with automatic speed regulation. Stabilizes test data upon reaching rated current or voltage. Locks test data and automatically uploads it to the local database and backend information management system.
Fully automatic protection against abnormal currents/voltages with alarm indication;
Fully automatic data acquisition and storage, with automatic system reset to initial state;
High-precision measurement instruments ensure data sampling complies with industry standards for full-data monitoring (all parameters displayed simultaneously), guaranteeing data integrity.
The system incorporates multiple layers of protection including software, hardware, and system interlocks. Its integrated cabinet design separates primary and secondary control circuits, significantly enhancing safety for both test personnel and tested products.
This system also supports transformer no-load harmonic current analysis testing.
The system supports expansion and integration with information management platforms.
current booster transformer
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The step-up transformer is an essential component in the low-voltage switch detection device, providing the required current for the test. |
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capacity |
6kVA |
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Input voltage |
220V |
single frequency |
50Hz |
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Output voltage |
6V |
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Output current |
1000A |
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current booster transformer
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The step-up transformer is an essential component in the low-voltage switch detection device, providing the required current for the test. |
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capacity |
0.3kVA |
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Input voltage |
220V |
single frequency |
50Hz |
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Output voltage |
2.5V |
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Output current |
100A |
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Fine-tuning transformer
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The step-up transformer is an essential component in the low-voltage switch detection device, providing the required current for the test. |
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capacity |
0.3kVA |
capacity |
0.3kVA |
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Input voltage |
220V |
single frequency |
50Hz |
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Output voltage |
6V |
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Output current |
50A |
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Single-phase electric voltage regulator
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A single-phase electric voltage regulator is an essential component in a low-voltage switch detection device, controlling the voltage variation throughout the test. |
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capacity |
10kVA |
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Input voltage |
220V |
frequency |
50Hz |
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Output voltage |
0-230V |
Output current |
40A |
Single-phase electric voltage regulator
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A single-phase electric voltage regulator is an essential component in a low-voltage switch detection device, controlling the voltage variation throughout the test. |
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capacity |
1kVA |
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Input voltage |
220V |
frequency |
50Hz |
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Output voltage |
0-230V |
Output current |
4A |
Temperature monitoring instrument
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The temperature monitoring instrument completes the measurement of ambient temperature (supports 4 channels) and the temperature measurement of each test part in the switch temperature rise experiment. |
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Standard operating status |
Temperature 23 ± 2℃, humidity 55 ± 10% RH, power supply voltage 90～132V AC, 180～ Performance under the following conditions: 265V AC, power supply frequency within 50/60 Hz ±1%, preheating for at least 30 minutes, and vibration or other environmental conditions do not adversely affect instrument operation. |
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Measurement accuracy |
Standard K-type thermocouple (-270 ～ 1370 ℃ ) High-precision K -type thermocouple (-200～500℃) ±0.2℃ However, -200.0 to 0.0℃ : ±(0.15% of the reading + 0.2℃) |
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Number of channels |
60 |
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Note: The system uses a type K thermocouple as the temperature sensor. |
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Smart Capacitor
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Improve the power factor of the power supply. |
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capacity |
85kvar (10kvar+15kvar+20kvar+40kvar) |
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capacitor rated voltage |
250V |
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System voltage |
400V |
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Rated frequency |
50Hz |
We provide you with free consultation services
Engineers provide guidance for installation and commissioning
Technicians can provide on-site maintenance services and receive regular training
Perfect technical consulting service system
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Address: China Optics Valley No. 1, Fenghuangyuan 2nd Road, Donghu High-tech Development Zone, Wuhan City
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