#Electrostatic discharge
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mad-scientist-enthusiast · 8 months ago
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This week I witnessed the dangers of electrostatic discharge in action which broke at least two outlets AND my favorite necklace.
Despite knowing exactly how and why it happened, I have no choice but to believe I am a wizard with a magical amulet that destroys electronics with my kickass sparks.
If you disagree with me, your outlets will be next. Do not underestimate the power I wield with my amulet.
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cosmicfocus · 2 years ago
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2022: Strike Gallery
Lightning Focus: Annual image compilation for 2022. #electrical storm #lightning #weather
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dnie2litth · 8 months ago
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https://www.futureelectronics.com/p/electromechanical--circuit-protection--tvs-diodes/sm6t36cay-stmicroelectronics-6152925
Transient voltage suppressor, diode circuit, High voltage tvs diode
SM6T Series 600 W 36 V Bi Directional Transient Voltage Suppressor - DO-214AA
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drcipy · 2 years ago
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What Is ESD Flooring
Certain types of facilities, especially those dealing with sensitive electronic devices, require flooring that can control electrostatic discharge. A specific kind of flooring called ESD flooring is most suitable for these set ups as they help protect equipment and areas from damage caused by static electricity. 
ESD (Electrostatic Discharge) flooring is designed to prevent & eliminate static electric charges where sophisticated electronics systems are operated, manufactured, assembled, or repaired. Commonly used inside air traffic control towers, electronics manufacturing facilities, computer labs, hospitals, and radio stations, ESD is a grounded, static dissipative floor or conductive floor covering with an electrical resistance between 2.5 x 104 to 1.0 x 109 Ohms.
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minimac-mspl · 16 days ago
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Is Overgreasing Dangerous?
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Greasing is an important process that ensures the smooth functioning of machines. Let’s understand these two aspects first - Overgreasing and Undergreasing. To determine which of these is more problematic could be difficult but we can definitely decide which one is more damaging. Too much grease can generate excessive heat in the bearing and may result in seal failure. When the lip seals rupture because of over greasing, it allows the harmful contaminants to enter the bearing housing. This would create excessive pressure and may collapse the bearing race. On the other hand, not putting enough grease may cause damage to the rotating parts. Undergreasing allows contaminants to enter the load zones. We can say that it's better to avoid both aspects of over and under greasing.
How to determine the amount of grease a bearing needs?
The factor responsible for determining the right amount of grease depends on the dimensions of the bearing or its housing. Greasing must be done based on proper calculations. A formula that is used commonly is as follows:
The outside diameter of the bearing is multiplied by the width (in inches), then multiply the answer by 0.114. This would give you the amount of grease in ounces required for that particular bearing. For example - If the outside diameter of a bearing is 3 inches and the width of a bearing is 0.5 inches, then 3 X 0.5 = 1.5 1.5 X 0.114 = 0.17 Thus, The amount of grease needed is 0.17 ounces or 4.8 grams.
Still not sure how? Connect with our experts: Click here
How to solve the problem of Overgreasing?
After having a grip on how much grease to put, try to master the frequency. Take help from various tables and charts available for determining the frequency. Calibrating the grease guns could be a simple and easy step to determine the correct volume of grease. It is very important to discontinue greasing when any abnormal pressure is encountered. Manual grease guns used in the industry have a few disadvantages. The poor control of grease guns may lead to over/under lubrication. Because they are low in cost, easy to use, and allow the technicians to inspect the equipment during the tasks, industries prefer using manual grease guns.
Setting up a maintenance program could be a game-changer. Keep a track of each grease point and schedule maintenance & inspections for the same. Initially, it may take some time and effort but the end result would be great and impactful.
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cosmicfocus · 2 years ago
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2021: Strike Gallery 4
My next Lightning image gallery ⚡
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freshtalesalad · 21 days ago
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If you want to be safe from static electricity, if you don't want your electronic items to be useless; then try these products. They will keep you safe from these charges
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grry2rubl · 2 months ago
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https://www.futureelectronics.com/p/electromechanical--circuit-protection--esd-protection/nup2105lt1g-onsemi-4180536
Electrostatic discharge protection, Bi-Directional ESD Protection, LED Printing
NUP2105L Series 350 W Dual Line CAN Bus Protector ESD Protection Diode - SOT-23
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rbert2rrell · 2 months ago
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https://www.futureelectronics.com/p/electromechanical--circuit-protection--esd-protection/nup2105lt1g-onsemi-1188106
CAN Bus Protector ESD Protection, ESD protection circuit, Bi-Directional ESD Protection
NUP2105L Series 350 W Dual Line CAN Bus Protector ESD Protection Diode - SOT-23
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ddivd2tez · 2 months ago
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https://www.futureelectronics.com/p/electromechanical--circuit-protection--esd-protection/nup2105lt1g-onsemi-7467806
Bus ESD Protection Diode, ESD protections circuit, Electrostatic discharge protection
NUP2105L Series 350 W Dual Line CAN Bus Protector ESD Protection Diode - SOT-23
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dvidd2grr · 2 months ago
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https://www.futureelectronics.com/p/electromechanical--circuit-protection--esd-protection/0603esda2-tr2-eaton-3147847
Circuit Protection Devices, ESD Protection equipment, Solid state relays
MLP Series 60 V 0.1 pF Bi-Directional 0603 Surface Mount ESD Suppressor
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lius2pplee · 2 months ago
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https://www.futureelectronics.com/p/electromechanical--circuit-protection--esd-protection/0603esda2-tr2-eaton-3028683
Electrical relay, Diode Array devices, Diode array manufacturers, ESD Suppressor
MLP Series 60 V 0.1 pF Bi-Directional 0603 Surface Mount ESD Suppressor
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kvin2dson · 2 months ago
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https://www.futureelectronics.com/p/electromechanical--circuit-protection--esd-protection/srda05-4-tbt-semtech-1727932
Electrostatic discharge protection, ESD protection diode, ESD protection circuit
SRDA Series 20 V 8 pF SMT RailClamp® Low Capacitance TVS Diode Array - SOIC-8
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minimac-mspl · 19 days ago
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Best practices for maintenance of FRF in turbine EHC system
What is a Turbine EH System?
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Due to high steam pressure & temperature in the vicinity of a steam turbine, as safety compliance, it is a mandate to use Fire Resistant Fluids (FRF) for hydraulic control of the EHC system. A specially designed synthetic fluid called tri-xylenyl phosphate ester demonstrates best fire resistant properties for the application.
Phosphate esters are polar fluids with excellent lubricating properties that can operate under extreme conditions. However, phosphate esters require strict control in order to extend their useful lifespan.
Water and Acids de-grade FRF
Phosphate esters (which are being used as FRF in EHC systems) are manufactured under controlled environment through the esterification of phosphoric acid, where water is a by-product.
Phosphoric Acid + Alcohol → Phosphate Ester + Water
Unfortunately, phosphate esters are highly hygroscopic (tendency to absorb water) in nature and the esterification process is reversible when phosphate esters come in contact with water. This is referred to as hydrolysis. The higher the water content and temperature, the faster the ester will break down by hydrolysis.
Phosphate Ester + Water → Phosphoric Acid or Acid Phosphates + Alcohol
Thereby it is recommended to control the water level, temperature, and acidity in FRF of the EHC systems. If uncontrolled, the acidity accelerates rapidly.
TAN value or Total Acid Number (measured in unit mgKOH/gm) is a parameter to denote acid content accumulation in FRF. A high TAN value degrades the fluid rapidly, decreases its viscosity and resistivity. Thereby causing acid corrosion of sensitive servo-valves and other system components of an EH System.
FRF de-gradation due to particles
Water and acid are not the only contaminants which can degrade the FRF.
Since the dynamic oil film and fine clearances in servo-valves are less than 5 micron, even the finest silt particles and sludge/varnish deposits from fluid degradation can hinder proper operation. Fine particles get trapped in clearances between the valve plunger and housing. This abrasive wear is known as seizing or grinding. This can result in wear rates that are a thousand times greater than anticipated by the valve manufacturer. Therefore, it only makes sense to use very fine filtration (3-5 micron) for maintaining the EHC fluid. For any Technical Consultancy Call - +91 89751 50700
Consequences of FRF de-gradation
Acid, gel and sludge/varnish formation
Valve sticking or blocking
Reduced lubricity and film strength
Corrosion, erosion and abrasion wear
Reduced fluid resistivity
Soot generation (entrained air)
Short fluid life
The result is poor EHC system reliability and reduced turbine availability.
Condition based monitoring of FRF
It is highly recommended to carry out regular fluid analysis of FRF and identify any abnormalities in the trend for further preventive actions. Recommended parameter values for FRF: Parameter unit value Appearance ASTM colour code clear, < 3 Water content ppm 500 Kinematic Viscosity (@40 0C) cSt 41-45 Acidity (TAN) mgKOH/gm < 0.15 Particle contamination code ISO 4406 15/12 Cleanliness code (NAS-1638) NAS 1638 5
To learn more follow https://www.linkedin.com/company/minimacsystemsprivatetlimited
The Minimac® FRF Re-conditioning System comprises 4 major steps, all packaged carefully in 1 single skid.
Solid contamination Super-fine Filtration
Moisture in oil separation by Vacuum Dehydration technology
TAN reduction by Ion Exchange technique
EHC system tank moisture removal by Inert Gas Blanketing technique
Would love to have your feedback, experience, query.. Got any question? Ask away!!
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cosmicfocus · 3 months ago
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2024-08-16, First Storm Since December
Electrical storm activity can be deadly. I never venture away from home to shoot lightning. Nowhere is 100% safe from overhead lightning activity – not even inside the house or the sheltered veranda where I view the storm. I avoid getting wet and always wear rubber-sole shoes. Finally an evening storm! There had been several electrical storms earlier in the year but none had been suitable for…
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dnld2eller · 3 months ago
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https://www.futureelectronics.com/p/electromechanical--circuit-protection--esd-protection/esdalc6v1p6-stmicroelectronics-2113252
STMicroelectronics, ESDALC6V1P6, ESD Protection & Diode Arrays
ESDALC Series 4 Channel 6.1V Uni-Directional Transil™ ESD Protection - SOT-666IP
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