The high-voltage isolating switch should be patrolled frequently during operation, and should be inspected and maintained before and after operation.
(1) Contact temperature. The isolating switch in the closing position shall have no overheating at the contact and connection points. The maximum allowable temperature is 70 °C. The load current shall be within the capacity range and shall not exceed the rated value. Otherwise, the large capacity switch should be replaced in time.
(2) Whether there is any defect in the contact site. Check the blade and the contact parts for burn marks, and check the porcelain insulation for damage and discharge. If there is burn marks, it should be polished in time and coated with a layer of neutral petroleum jelly.
(3) Check the condition of the parts. Check whether the screws of each component are loose and the contact pressure is appropriate. Otherwise, it should be trimmed; check whether the components of the operating mechanism are open, deformed or rusted, whether the shaft pin and the fastening nut are normal; check whether the opening and closing are closed. The phenomenon of jamming, the center of the joint should be calibrated, and the three phases should be in contact at the same time; the surface of the insulator and the operating connecting rod of the isolating switch should be kept free of dirt, foreign matter, cracks, defects or flashover.
(4) Contact of the blade with the contact. Check whether the blade is in close contact with the contact. It can be tested with a feeler gauge of 0.05mm thick and 10mm wide. The insertion depth should not exceed 5mm.
(5) The distance between the static contact of the isolating switch and the blade. For the isolating switch in the opening position, the distance between the static contact and the blade should be as far as possible. If it is too small, flashover may occur, causing the device under maintenance to be charged and causing an accident. The safety distance is shown in the table.
Safety distance reference data between the table static contact and the blade
(6) Regularly check the insulation of porcelain parts. Regular power outages should be checked and found to be poorly insulated. New parts should be replaced in time.
Motive batteries are specialized energy storage devices engineered to deliver high power output, endurance, and reliability for the propulsion of various types of electric vehicles. Unlike conventional batteries used in stationary applications or for small electronics, motive batteries are built to withstand the rigorous demands of continuous movement, vibrations, and temperature variations.
What is a motive battery?
A motive battery stands out as a unique type of battery, tailored specifically for propelling electric vehicles. These batteries are distinct from those used in stationary settings or smaller electronics. They are designed to withstand the challenges of continuous operation, including constant movement, varying temperatures, and vibrations. They represent a critical component in the shift towards eco-friendly transportation and renewable energy.Types of Traction Batteries
Sealed Lead Acid Batteries (VRLA/AGM):These are Valve-Regulated Lead-Acid (VRLA) batteries, often using Absorbent Glass Mat (AGM) technology.
Known for their robustness and cost-effectiveness, they are used in a range of electric vehicles, though their weight and lower energy density compared to newer technologies are notable.
LithiumIon Batteries:
Dominating the modern EV market, lithium-ion batteries are prized for their high energy density and efficiency.
They offer longer life spans and faster charging times compared to lead-acid batteries, making them ideal for electric cars and high-performance vehicles.
Nickel-Metal Hydride (NiMH) Batteries:
These batteries are often found in hybrid vehicles.
They provide a balance between cost, energy density, and environmental friendliness, though they are gradually being overshadowed by lithium-ion technology.
Lithium Iron Phosphate Batteries:
Known for their safety and stability, these batteries are gaining popularity in applications where safety is a major concern, such as in e-bikes and electric scooters.
They offer a good balance between life span, energy density, and safety, making them a preferred choice in specific segments of the EV market.
Each type of motive battery brings its unique strengths and is chosen based on the specific requirements of the vehicle and its intended use. Together, they play a pivotal role in the advancement of eco-friendly transportation and the broader adoption of renewable energy technologies.
Features of Electric Vehicle Battery
High Energy Density: Motive batteries are designed to store a large amount of energy in a relatively small space, enabling electric vehicles to travel significant distances on a single charge.Durability and Longevity: These batteries are engineered to endure numerous charge-discharge cycles over their lifespan, making them a reliable source of power for electric vehicles.
Fast Charging Capabilities: Modern motive batteries often feature advanced technologies that allow for rapid charging, reducing downtime and enhancing the usability of electric vehicles.
Environmental Friendliness: By employing rechargeable systems and often utilizing less toxic materials, motive batteries contribute to reducing pollution and dependency on fossil fuels.
Safety Features: Safety is a critical aspect, and these batteries are equipped with various mechanisms to prevent overheating, overcharging, and other potential hazards.
Motive Power Battery Usage Scenario
Electric Vehicles (EVs): They are predominantly used in passenger cars, offering a cleaner alternative to internal combustion engines.Electric Trains: Motive batteries are an integral part of modern electric train systems, providing efficient and eco-friendly mass transit solutions.
Electric Bicycles and Scooters: These batteries enable the widespread use of electric bikes and scooters, particularly useful in urban areas for short-distance travel.
Golf Carts and Utility Vehicles: In recreational and utility vehicles like golf carts, motive batteries offer a silent and pollution-free mode of transport.
Through these enhanced features and varied uses, motive batteries are leading the charge in the electric mobility revolution. Their ongoing development and improvement are vital for achieving long-term, sustainable transport solutions globally.
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