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HTGK-IV High Voltage Switch Dynamic Characteristics Tester
The current can be freely selected from 50A, 100A, 150A, and 200A. The circuit resistance can be directly measured at 100A and 200A using the latest s
Product details
Product IntroductionProduct Introduction
At present, the conventional QJ44 double arm DC bridge is widely used in the power system to measure contact resistance, but the testing current of this type of bridge is only in the mA level, making it difficult to detect the defect of reduced cross-sectional area of the circuit conductor. When measuring the contact resistance of the conductive circuit of a high-voltage switch, due to the influence of the oil film and oxide layer between the contacts, the measured value is several times larger and cannot truly reflect the contact resistance value. To this end, the latest standard DL/T845.4-2004 "General Technical Conditions for Resistance Measuring Devices: Loop Resistance Testers" and the new version of the verification regulation JJG1052-2009 "Verification Regulation for Loop Resistance Testers and Direct Resistance Testers" of the Ministry of Electric Power stipulate that the measured current for measuring (isolating) switches, circuit breakers, and other connected resistances should not be less than 100A DC, and the minimum current holding time should not be less than 60 seconds, ensuring accurate test results.
The operation panel of the circuit resistance automatic tester adopts ergonomic design, conforms to operating habits, uses high-frequency switching power supply and digital circuit technology, and is suitable for measuring the circuit resistance of switch control equipment. The test current adopts the recommended DC 100A and 200A in the national standard. The circuit resistance can be directly measured under DC 100A and 200A, and the test results are displayed on a large LCD screen with functions such as data storage, output printing, and time setting. There are also 50A and 150A levels for users to choose from; Custom testing time, with a maximum set time of 599 seconds, exceeding the standard requirement of 60 seconds; it is currently a highly stable contact resistance tester in China that can achieve a resolution of 0.01 μ Ω, with performance exceeding that of imported high current micro ohmmeters. Meets the requirements of on-site high-voltage switch maintenance and high-voltage switch factory circuit resistance testing by the power and supply departments.
Product nickname: Contact Resistance Tester, Switch Circuit Resistance Tester, Contact Circuit Resistance Tester, Contact (Circuit) Resistance Tester, Circuit Resistance Automatic Tester
Product parametersProduct Parameters
Technical Parameter
| measuring range | 0～2999.9μΩ |
| Resolution | 0～99.99，0.01μΩ ; 100.0～2999.9，0.1μΩ |
| Test Current | DC 50A, 100A, 150A, 200A four speed fixed output |
| measurement accuracy | ±(0.5% rd+2d) |
| Continuous working hours | 5s～599s |
| Display mode | Large screen Chinese LCD display |
| communication model | USB flash drive transfer |
| Working power supply | AC220V±10% 50Hz |
| Whole machine power | 1200W |
| Maximum storage record | 200 items |
| work environment | Temperature -10 ℃~40 ℃, humidity: ≤ 80% RH |
| Volume | 380×310×260 mm3 |
| Weight | 11kg (excluding accessories) |
Note:
1. The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice. If there is any act of theft or copying, legal responsibility will be pursued.
2. To learn more about Huatian products, please enter the product center. Service Hotline: 400-8855-448
Product FeaturesProduct Characteristics
1. High current: The automatic circuit resistance tester adopts new power supply technology, which can continuously output high current for a long time, overcoming the drawbacks of instantaneous current of pulse power supply. It can effectively penetrate the oxide film of switch contacts and obtain good test results.
2. High stability: Under severe interference conditions, the last digit of the LCD screen can remain stable within ± 1 word range, with stable readings and good repeatability.
3. High precision: Adopting dual channel high-speed 16 bit ∑ - Δ AD sampling and new digital signal processing technology, the highest resolution reaches 0.01 μ Ω. It is currently the most stable contact resistance tester in China that can achieve a resolution of 0.01 μ Ω, and its performance exceeds that of imported high current micro ohmmeters.
4. Intelligence: Using imported high-performance CPUs, the system automatically switches the measurement range based on the signal size during measurement, ensuring the accuracy of the product's testing. The over temperature protection circuit can automatically stop outputting current when the instrument exceeds the set temperature, ensuring the safe use of the instrument.
5. High quality: All key components are imported, and the cleverly designed temperature compensation circuit effectively eliminates the influence of environmental temperature on measurement results. The use of military connectors enhances the anti vibration performance.
6. Powerful: The current can be freely selected from 50A, 100A, 150A, 200A, and the testing time can be set arbitrarily within 5s to 599s, overcoming the shortcomings of other similar instruments that cannot set measurement time or have short continuous working time, far exceeding the performance of other similar instruments.
7. Human computer interface friendly: By rotating the mouse to input data, it is convenient and fast. The instrument date and time can be set independently, measurement data can be saved in real time, and measurement results can be printed in real time.
8. USB transfer: Transfer measurement data to a USB drive through a USB interface, and further analyze and process the measurement data in conjunction with the upper computer software.
9. Easy to use: small size, light weight, easy to carry.
Product videoProduct Video
Product AtlasProduct Picture
Product Attachment Diagram
Instrument host
Specialized testing line
Specialized testing line
U disk
ground wire
power line
10A insurance tube
accessory kit
printing paper
Instruction manual, inspection report, certificate of conformity
Product detail diagram
appearance
side
panel
terminal
printer
screen
USB interface
power supply
terminal
control knob
Test pliers
Test pliers
Test line connector
Production process diagram
On site production drawing 1
On site production drawing 2
On site production drawing 3
On site production drawing 4
product certificateProduct Certificate
Our company's products are strictly produced in accordance with international and national standards and industry regulations. They have passed the testing of national, provincial, and municipal power research institutes, measurement centers, and authoritative power departments, and have fully passed the ISO9001 international quality management system certification, the People's Republic of China manufacturing measuring instrument license, GB/T19001-2016 quality management system requirements, GB/T24001-2016 environmental management system requirements, and GB/T45001-2020 occupational health and safety management system requirements.
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