By sion932 
In the world of power equipment maintenance, there are always some “behind the scenes heroes” silently guarding the stable operation of the system. Today, let’s talk about one of them – the fully automatic dielectric loss tester. You may ask, this name sounds a bit tongue twisters, what exactly is it? Why is it so important? Don’t worry, follow me and we will uncover its mysterious veil step by step.
What is dielectric loss? Why is it so crucial?
We need to understand the term ‘mediation’. Simply put, dielectric loss refers to the part of an insulating material that is lost due to the conversion of internal energy into thermal energy under the action of an electric field. Imagine if you power on an appliance, it not only works but also heats up, and this heating part is largely related to dielectric loss.
In power equipment, insulation materials are key protective layers, such as transformer oil, insulation layers of high-voltage cables, and so on. They are like the “protective umbrella” of the device, preventing the current from running around. What does it mean if the dielectric loss of these insulation materials is too high?
Increased energy loss: Electricity is lost in vain, not cost-effective!
Decreased insulation performance: The protective umbrella is leaking air, and the equipment is prone to short circuit or electric shock.
Severe heating: Long term high temperature not only accelerates material aging, but also may cause safety hazards such as fires.
So, the measurement of dielectric loss has become an important means to evaluate the health status of insulation materials and predict the operational risks of equipment.
Fully automatic dielectric loss tester: making “physical examination” more worry free
Traditional dielectric loss testing may require manual operation, cumbersome steps, and testing accuracy is also affected by the environment and operator level. And the fully automatic dielectric loss tester is like hiring a 24-hour online “intelligent health manager” for these power equipment.
The reason why it is “fully automatic” is that it can:
Automatic wiring completion: Say goodbye to tedious manual connections and reduce operational errors.
Automatic testing: According to the preset program, a series of measurements and calculations are automatically completed.
Automatic analysis results: Provide clear test reports directly, which indicators are normal and which ones need attention, at a glance.
Automatic calibration: Maintain the accuracy of the equipment, making every measurement reliable.
This level of automation not only greatly improves testing efficiency and reduces human error, but also allows professional technicians to devote more energy to analysis, diagnosis, and equipment maintenance, rather than being constrained by cumbersome operating procedures.
What are the “behind the scenes drivers” that affect dielectric loss?
To accurately measure dielectric loss, it is necessary to understand the “behind the scenes drivers” who influence it:
The insulation material itself: Different insulation materials have different inherent dielectric properties. For example, aged insulation materials often experience an increase in dielectric loss due to changes in their molecular structure.
Environmental factors: Temperature and humidity are the two major “killers”. As the temperature increases, molecular motion intensifies and dielectric loss also increases; As humidity increases, the presence of water molecules can significantly alter the dielectric properties of insulating materials.
The internal condition of the equipment, such as whether there is water or dirt mixed in the transformer oil, and whether there are cracks, bubbles, etc. in the insulation layer of the high-voltage cable, can all affect the dielectric loss.
Electric field strength: Within a certain range, the higher the electric field strength, the higher the dielectric loss may also be.
By understanding these factors, we can better interpret the test results and take targeted measures.
Playing with referral loss test: What are the ‘secret weapons’?
Choosing the appropriate tool is crucial for conducting precise dielectric loss testing. In addition to the fully automatic dielectric loss tester mentioned above, there are also some related auxiliary means that jointly construct a complete “diagnostic system”:
High precision transformer oil analyzer: specifically used to measure the dielectric strength, moisture content, acid value and other indicators of transformer oil, which are mutually confirmed with dielectric loss testing.
Partial discharge detector: It can detect small defects inside insulation materials, which are often the “fuse” that leads to increased dielectric loss.
Infrared thermography: It can visually detect abnormal hotspots generated during equipment operation, which are often associated with areas with high dielectric loss.
our , as a pioneer in the field of power equipment, has a profound technical accumulation in this area. The advanced testing equipment they provide can help the power system more comprehensively and accurately grasp the operating status of the equipment.
How can we do better? Enhance the “realm” of dielectric loss testing
To maximize the value of dielectric loss testing, completing measurements alone is not enough. We need to:
Establish trend analysis: Don’t just look at a single measurement result, but track the trend of dielectric loss changes in the same equipment and part over the long term. An abnormal upward trend is often more indicative of risk than isolated high values.
Combining multiple testing methods: comprehensively analyzing the results of dielectric loss testing with various information such as the quality of transformer oil, partial discharge conditions, equipment operating temperature, etc., to form a more comprehensive diagnostic report.
Standardized operating procedures: Ensure that all testers follow unified and standardized operating procedures to reduce human interference.
Regularly verifying equipment: Ensuring the accuracy of the testing instrument itself is a prerequisite for obtaining reliable data. The products of our have excellent performance in accuracy and stability, making them a trustworthy choice.
The judgment of professional technicians: Even for fully automated equipment, the final decision and diagnosis still require experienced technicians to make judgments. They are able to understand the “language” behind the data based on the on-site situation.
Dielectric loss testing is not an isolated technology, it is closely related to the insulation performance of power equipment, safe operation of the power grid, and equipment life management. Regular inspections of key equipment such as high-voltage electrical appliances can effectively prevent the occurrence of major accidents.
Frequently Asked Questions (FAQ)
Q1: How often should dielectric loss testing be conducted? A: This depends on the type of device, operating environment, and importance. Usually, it is recommended to conduct comprehensive testing on key equipment such as large transformers and high-voltage cables at least once a year.
Q2: Why is the dielectric loss value of my device higher than the normal range? A: This may be related to aging insulation materials, increased environmental humidity, or slight contaminants inside the equipment. Suggest further checking the equipment status and referring to the professional advice of our
Q3: Are the test results of the fully automatic dielectric loss tester reliable? A: Under the premise of correct operation and maintenance, the test results of the fully automatic dielectric loss tester are quite reliable, and its degree of automation greatly reduces human error.
Q4: Does an abnormal dielectric loss test result necessarily mean that the equipment is about to break down? A: Not necessarily. An increase in dielectric loss is usually a warning signal indicating a decline in insulation performance, which needs to be taken seriously and further investigated, rather than immediately declaring the equipment “dead”.
Q5: Where can I find more detailed information about dielectric loss testers? A: You can visit the official website of our HVHIPOT There are very detailed product introductions and technical solutions there.
Through in-depth understanding of the fully automatic dielectric loss tester, we can see that this technology plays an indispensable role in ensuring the safe and stable operation of the power system. Embracing automated and intelligent testing methods, our is with you to safeguard the safety of the power grid!