Minimac Systems Pvt. Ltd.

A 1200 MW coal-fired thermal power plant using Into-Chinese Turbine EHC System in Southern India. The Plant was struggling with the rapid increase in TAN values in the EH oil of the governing system of the turbine. Also, the moisture content was more than permissible limits. Degradation of the oil was due to contamination ingression into the system resulting in by-product formation. Minimac’s EH oil reconditioning system “ MLC LVDH TRIX 20 ” proved to be the savior and an unexpected shutdown of the turbine worth ₹1.05 Cr per day was saved . PROBLEMS A rapid increase in the Total Acid Number (TAN) could degrade the EH oil and lead to the possibilities of failure of servo valve, hunting, power generation loss, unplanned shutdown, etc. Oil Analysis was done to check the properties of EH oil like Moisture, NAS value, Total Acid Number. SOLUTIONS Installation of Minimac’s EH Oil Reconditioning System “ MLC LVDH TRIX 20 ” is comprehensively designed with 4 major technologies to: Remove solid

A 1200 MW coal-fired thermal power plant using Indo-Chinese Turbine EHC - System in Southern India. SYNOPSIS The power plant was suffering from a loss in electricity generation for a few days as per the desired target. The O&M team identified that the turbine command was not functioning properly and was tripping frequently. On further investigation, it was found that the Servo Valve (Moog Valve) had failed and showed hunting or sluggish behavior. Minimac’s EH Oil Reconditioning System “ MLC LVDH TRIX 20 ” acted as a rescuer and saved the plant from an unexpected shutdown. If this system would have been implemented earlier, a loss of more than ₹5 Cr could have been saved. PROBLEMS Failure of Moog Valve: This was the main reason for the turbine trip and breakdown in the power plant. Poor Oil Analysis Program: Oil analysis should be done monthly for Particle Count & TAN (weekly if the trend is negative). For moisture contamination, weekly test is suggested but the customer faile

How to manage the cost of Lubricant Filtration? The cost of removing dirt from oil is substantial, mainly when plants and fleets operate in dusty environments. We are aware of the fact that contamination control is optional but an important maintenance strategy. You may find it surprising, but most oils purchased these days are not filtered before being sold. It may look transparent, but it has particles that are not expected to be in new oil. The existing contaminants of lubricants must be addressed first before putting into service. Achieving cleanliness of oil at economical rates should be taken care of by smart maintenance professionals. As already mentioned, many new lubricants may have impurities that contribute to premature filter plugging. An oil change can be more economical than filtration (in some cases). In simple words, filters last if they don’t plug in particles/impurities. A careful inspection must be done in this case. If you change filters very often, it will be a was

  One of the most important activities that should be performed on a regular basis at their respective plant location is oil analysis.  Oil analysis is like visiting your primary care physician for a yearly blood test. The specialist can decide your general wellbeing and prosperity from a tiny example of your blood. The same can be performed with various industrial equipment such as motors, gearboxes, water power, air blowers, and turbines in order to avoid major breakdowns of the equipment. Let’s explore this part more in detail.  Oil analysis (OA) is the laboratory analysis of a lubricant's properties, suspended contaminants, and wear debris, performed during routine predictive maintenance to provide meaningful and accurate information on lubricant and machine conditions. As shown in the graph below the condition of assets keeps decreasing as the time of its usage keeps increasing. This is a clear indication to monitor your Equipment and Oil's condition frequently and take pr

  What is the Beta Ratio? The beta ratio refers to the efficiency in which a given filter element removes the particle of a given size. It is calculated using the ISO multi-pass test standard 16889:1999. This factor plays an important role in buying the oil filter. How is it measured? This test involves adding particles of a known size to the test fluid until the fluid reaches an immersion point and afterward bringing the channel online to eliminate particles in a single pass through the component. Consider that the beta proportion is very important for a specific size of the molecule For example, if 100,000 five micron particles were measured, on average, before the filter, and 100 five micron particles were measured after the filter, the beta ratio was 1,000. We at Minimac Systems Pvt Ltd . provide services of Total Lubrication Management and Lubrication Consulting that help you optimize your Lubrication needs. In the realm of filters and filtration, the Beta Ratio assumes a signifi

  Oil degradation is a basic term that is used to describe the destructive mechanisms that cause physical and chemical changes to fluid while they are in service. Oil degradation is considered the main factor for reducing the service life of the working fluid. Oil oxidation happens when the oxygen attacks the fluid eventually which degrades the quality of the oil. If you overlook the oil oxidation issue it can cause - formation of sludge, increase in viscosity & additive depletion. Let's explore our dry inert gas blanketing technology which can help overcome the above-mentioned problems . Humidity is the Biggest Concern for OIL OXIDATION and DEGRADATION! It has been seen that the header space of oil tanks especially in the coastal areas is full of humid air. Having an Inert gas ensures the absence of oxygen which would be the key element for Oxidation and Oil Degradation. Hence, the technology Nitrogen Blanketing enables us to create a dry environment in the header space of the

  Taking care of lubricants has been mainly neglected because it is considered as unnecessary or out of maintenance practice. Not following proper maintenance practices for lubrication reliability often leads to the formation of contamination and degradation in oil. In this article, we have tried to cover the strategies that one can implement at the respective plants to extend the life of the oil as well as equipment.  Just like equipment, lubricants also require proper maintenance and care when being received, handled, stored, and used. Many facilities are unaware of the danger caused due to improper lubricant storage and handling practices and what inevitable fate it can lead to in terms of equipment reliability and lifecycle. We often overlook these important aspects thinking they don't affect Oil's condition much but considering the importance of Clean Oil these factors play an important role. Improper Lubrication maintenance practices result in Oil degradation and contamin