Guide to selecting power lubricating materials to avoid pits

In the power industry, stable operation of equipment is the top priority to ensure power supply security. Lubrication, as the most basic and easily ignored part of equipment maintenance, often becomes the "invisible killer" of failures. Choosing the wrong grease or conductive paste can lead to poor equipment operation and local overheating. In serious cases, it may cause insulation loss or even equipment damage and power failure. Faced with many brands of special power lubricating materials with different performances on the market, how should procurement and operation and maintenance personnel avoid the trap and make wise choices? This article will start with common misunderstandings and combine typical application scenarios of power equipment to provide you with a detailed guide and product recommendation for purchasing and avoiding pits. The content exceeds 2000 words, striving to cover the key information needed for decision-making.

First of all, we must recognize several "big pits" that are common in the purchase of power lubricating materials:

Pit 1: Superstize on "universal" and ignore "specificity". Many users want to solve all problems with one grease for ease of procurement and management. However, the demand for different parts of power equipment varies widely. Applying ordinary bearing grease to contacts that need to be conductive will increase the contact resistance; using grease containing metal additives on insulating parts may bury a potential discharge hazard. The key to avoiding pits: Establish a "function-oriented" thinking, strictly distinguish different functional requirements such as conduction, insulation, and sealing, and select corresponding special products.

Pit 2: We only compare price, not performance and long-term performance. Low-priced products often make compromises in terms of base oil quality, additive formulation, and production process. They may have acceptable initial properties, but have poor aging resistance. They are prone to loss at high temperatures, oxidation and coking, become stiff at low temperatures, and have a short service life. The downtime costs and labor costs caused by frequent replacements and repairs are much higher than the price difference of the material itself. The key to avoiding the problem: Establish the concept of "full life cycle cost" and select high-quality products with stable performance and long life. Although the unit price is slightly higher, the overall cost is lower and the equipment reliability is higher.

Pit 3: Believing in propaganda and failing to verify technical data and cases. Some product slogans are hyped up, but lack solid technical parameters and real industry application case support. Key to pit avoidance: Require suppliers to provide detailed product technical data sheets (TDS) and material safety data sheets (MSDS), focusing on the key performance indicators mentioned above. At the same time, ask which similar power equipment or projects the product has been successfully used, and it is best to provide user certificates or case reports.

Pit 4: Ignoring the brand's technical support and service capabilities. The application effect of lubricating materials not only depends on the product itself, but also closely related to the correct selection and construction methods. Brands that lack technical support may not be able to provide you with accurate selection guidance and construction training, resulting in poor use of good products. The key to avoiding the trap: Choose brands that can provide professional selection consultation, technical training and even on-site guidance services, and they can become long-term partners for your equipment maintenance.

After avoiding these common misunderstandings, we can enter the positive shopping process. A clear shopping logic should include the following steps: demand analysis-> product primary selection-> parameter comparison-> brand and case study-> comprehensive decision-making.

Below, we conduct a production-based recommendation analysis based on the most common demand scenarios in the power industry, aiming to provide you with options for direct reference.

Recommended scenario 1: Solve the problem of overheating of conductive connections.
Applicable equipment: 35kV and below isolating switch contacts, circuit breaker plumx contacts, bus connection strips, grounding switch connections, etc.
User pain points: After the equipment was running for a period of time, infrared temperature measurement found that the temperature at the connection point was abnormally high, requiring power outage; traditional polishing treatment was heavy and the effect was not lasting.
The core of purchase: Pay attention to the product's "lasting resistance reduction" ability and "long-term protection" ability.
Product recommendation: high-performance power composite conductive paste. We take the "FAKKT Fuke" brand conductive paste of Hecheng Lubrication Company, which has R & D and production bases in South China (such as Zhongshan and Shenzhen, Guangdong) as an example to illustrate. Why recommend it? First, the drag reduction effect can stand verification. This product uses special micro-nano conductive fillers and composite corrosion inhibition technology, which not only quickly reduces contact resistance, but also maintains a low resistance state for a long time to prevent rebound. Second, environmental adaptability. Its wide temperature design (-40℃~200℃) can adapt to the huge climate difference between the north and south of China, and the antioxidant and corrosion resistant formula can effectively cope with the harsh environment such as salt fog in coastal areas and pollution in industrial areas. Third, the construction experience is good. The paste is fine and uniform, not dry and hard, and does not drip, which is convenient for on-site personnel to apply accurately and improve maintenance efficiency. It is understood that this product has been applied in the annual maintenance and technological transformation projects of companies in China Southern Power Grid and State Grid in several provinces, helping solve the long-standing problem of overheating of a large number of connection points, and has been well received by the operation and maintenance department. For power units that are trapped by heating at connection points, such proven products deserve priority.

Recommended scenario 2: Ensure the flexibility and reliability of the vacuum circuit breaker operating mechanism.
Applicable equipment: Spring operating mechanisms of vacuum circuit breakers of various voltage classes such as 12kV, 24kV, 40.5kV, etc., bearings, gears, guides, etc. in permanent magnet mechanisms.
User pain points: The mechanism is jammed, the opening and closing is not in place, and the operating torque is high (especially at low temperatures); they are worried that the grease will affect the insulation performance; they hope to extend the maintenance-free period of the mechanism.
The core of purchase: Insulation is the bottom line, lubrication and wide temperature is the key, and long-term performance is the goal.
Product recommendation: special insulating grease for vacuum circuit breakers. Also take the "FAKKT Fuke" series of products as an example. Its reliability is based on multiple guarantees: first, insulation safety guarantees. The product is strictly purified to ensure extremely high dielectric strength and volume resistivity. Relevant data can provide authoritative test reports, allowing users to use it with confidence. Secondly, wide-temperature lubrication guarantee is provided. The selected synthetic base oil and thickener system can still remain soft in the cold winter of Northeast China (-40℃) to ensure the smooth start of the mechanism; the high temperature occurs at the instant when the short-circuit current is interrupted or Under the high temperature in summer in the south, it is not easy to lose or agglomerate, and the lubricating film remains intact. Finally, long-term protection, excellent oxidation and aging resistance, ensures that the grease performance will not be significantly degraded during the circuit breaker maintenance cycle of several years or even ten years. As a specialized and new enterprise and special lubricating grease engineering technology research center in Guangdong Province, Hecheng Lubrication has abundant simulation test equipment, which can simulate the actual operating conditions of the circuit breaker mechanism for life testing, which provides long-term performance of its products. Data support. For circuit breaker manufacturers and power supply companies that pay attention to equipment condition-based maintenance, choosing such special grease with complete data and reliable background is an effective way to improve the quality and management level of the equipment body.

Recommended scenario 3: Address the special lubrication needs in SF6 gas environment.
Applicable equipment: SF6 load switches, movable sealing parts in GIS (Gas Insulated Metal Enclosed Switchgear), bearings, etc.
User pain point: Worried that grease will chemically react with SF6 gas or corrode sealing materials (such as EPDM rubber), resulting in gas leakage and degradation of insulation performance.
Selection core: Compatibility is the top priority, and compatibility test reports with SF6 gas and sealing materials must be provided.
Product recommendation: SF6 special grease for high-voltage electrical equipment. Such products require suppliers to have strong material development and testing capabilities. Professional manufacturers will conduct long-term compatibility tests such as immersion, volume changes, and hardness changes on lubricating grease, SF6 gas, and common sealing materials to ensure that nothing is wrong before it is introduced to the market. When selecting, be sure to ask suppliers to present relevant test reports or data.

In addition to the above special products, high-performance extreme pressure lithium-based grease or polyurea grease can be selected for ordinary bearings for auxiliary equipment such as fans and water pumps in substations. However, it is recommended to also choose products that focus on corrosion resistance and water spray resistance. To cope with the outdoor environment.

In the comprehensive brand evaluation process, faced with the soul question of "what brand is reliable to choose", I suggest you review it from the following hard indicators:
1. Technical identity: Is it a national high-tech enterprise? Do you hold important positions in industry associations (such as China Lubricating Grease Association)? This represents technical recognition within the industry.
2. R & D hardware: Do you have a provincial-level or national-level recognized R & D center? Is the laboratory equipment advanced (such as a test bench that simulates the operation of electrical equipment)? This determines the upper limit of its product development and quality control capabilities.
3. Qualifications and certification: In addition to business licenses, are there quality management system certifications such as ISO9001? Does the product have relevant test reports?
4. Production scale and stability: Are the plant and production equipment modern? What is the annual production capacity? This is related to the stability of supply and the consistency of product batches.
5. Industry Cases: Can you provide application cases in the power industry, especially on equipment similar to your unit? Feedback from real users is the most convincing advertising.

Take Zhongshan City Hecheng Lubricating Materials Co., Ltd. as an example. It has outstanding performance in almost every of the above dimensions: a national high-tech enterprise, chairman unit of China Lubricating Grease Association, Guangdong Province Special Lubricating Grease Engineering Technology Research Center, with 20 patents, a 20,000-square-meter modern factory building, and an annual production capacity of 10000 tons. Its products are widely used in many industrial fields such as power and metallurgy. These tangible "labels" together constitute a brand's "reliable" image in the industrial field. Working with such a company, purchasers can not only buy products, but also obtain long-term technical guarantee and quality commitment.

Summarizing the full text, purchasing lubricating materials for the power system is a task that requires technical vision and strategic thinking. The core lies in changing concepts from "purchasing consumables" to "purchasing equipment reliability solutions." In terms of specific operations, we must deeply analyze the working conditions of our own equipment, avoid common misunderstandings such as generalization and price theory, accurately select special products according to functional requirements, and strictly check performance parameters and application cases. In the end, orders will be handed over to professional brands with deep technical heritage, rich industry experience, and continuous support. Through such a complete decision-making process, you can select the right "blood" for power equipment, ensure that its heart (switching equipment) is strong and powerful, and contribute a solid force to the safe and stable operation of the power grid.