Question 1: What are the uses of fixed assets? First, according to economic purposes, they are divided into two categories: production and operation and non-production and operation. Fixed assets for production and operation refer to those that directly serve production. Fixed assets throughout the entire business process, such as factories, machinery and equipment, warehouses, sales locations, transportation vehicles, etc. Non-production and operation fixed assets refer to fixed assets that do not directly serve production and operation, but are used to meet the material, cultural, and living welfare needs of employees, such as employee dormitories, canteens, nurseries, kindergartens, bathrooms, medical offices, libraries, and scientific research, etc. Houses, equipment and other fixed assets used for other purposes.

Second, they are divided into three categories: in use, unused, and not needed according to usage. Fixed assets in use refer to various fixed assets that are being used by the enterprise, including due to seasonal and major repairs. Machinery and equipment that are temporarily out of service and stored in the user department for replacement. Unused fixed assets refer to newly added fixed assets that have not yet been put into use and fixed assets that have been approved to cease use. Unused fixed assets refer to fixed assets that the enterprise does not need to use and is ready to be disposed of.

Third, according to the ownership of property rights, it is divided into three categories: self-owned, accepting investment and renting.

Fourth, according to the physical form, it is divided into houses and buildings, machinery and equipment, and electronic equipment. , transportation equipment and other equipment. Fifth, according to the shortest service life of fixed assets, they are divided into 3 years, 4 years, 5 years, 10 years and 20 years.

Question 2: What is the operating status of the equipment A.1? The operating status

means that the switch and blade of the equipment are in the closed position, and the circuit from the power supply to the power receiving end is connected. (Including auxiliary equipment such as voltage transformers, lightning arresters, etc.); all relay protection and automatic devices are in the put-in position (except when required by dispatch), and the control and operating circuits are normal.

A.2 Hot standby state

It means that only the switch of the equipment is turned off, but the blade is still in the closed position, and the other operating states are the same.

A.3 Cold standby status

It means that the switch and knife of the equipment are in the off position (including the line voltage transformer knife), remove the line voltage transformer secondary fuse And bus differential protection, failure protection pressure plate (including the protection pressure plate for even tripping other switches).

3.1 When the line voltage transformer knife is connected to a lightning arrester, the line voltage transformer knife will not be opened when the line is changed to cold standby operation (the line voltage transformer knife will only be opened when the line is changed to maintenance status). knife).

3.2 When the line voltage transformer knife is not connected to the arrester and the line changes to the cold standby state, the operation of the line voltage transformer only requires opening the voltage transformer knife (without the pressure of the high voltage switch knife). Change to remove the low voltage side fuse).

A.4 Maintenance status

It means that all switches and blades of the equipment are disconnected, and the grounding wire is connected or the grounding blade is closed. "Maintenance status" is divided into "switch maintenance", "line maintenance", etc. according to different equipment.

4.1 Line maintenance: It means that on the basis of the line being in cold standby state, the grounding knife of the line is closed or the grounding wire is installed on the side of the line knife.

4.2 Switch maintenance: refers to opening the blades on both sides of the switch and removing the fuse from the switch operating circuit. The bus differential CT of the switch is separated from the bus differential circuit (the bus differential is deactivated first, the bus differential CT circuit is disassembled and short-circuited to ground. Measure the bus differential imbalance current to find within the allowable range before switching on the bus differential protection), and close the ground on both sides of the switch. Gate blade or install grounding wire.

4.2.1 When the main transformer body is running, but the switch on one side is inspected, the longitudinal difference CT of the switch should also be separated from the main transformer longitudinal difference circuit.

4.2.2 During the AC circuit switching process, the bus differential or longitudinal differential protection should be disabled for a short time.

4.2.3 If there is a voltage transformer between the switch being inspected and the circuit (or transformer) blade, the blade of the voltage transformer needs to be opened (or its high and low voltage fuses must be removed).

4.3 Main transformer maintenance: Open the switches and side knives on each side of the main transformer, and hang grounding wires (or close the grounding knives) on each side of the transformer.

Question 3: What are the operating states of electrical equipment? Electrical equipment includes: operating state, hot standby state, cold standby state and maintenance state. The operating status includes: It means that the equipment blades and switches are in the closed position (including voltage transformers and lightning arresters), and the circuit from the power supply to the receiving end is connected. Hot standby state: refers to the device being disconnected only by the switch while the blade is still in the closed position. Cold standby state: means that the equipment switches and blades (including voltage transformers and lightning arresters) are in the disconnected position, and the high and low voltage fuses of the voltage transformer are removed. Maintenance status: means that the equipment is installed with grounding wires on the basis of cold standby, signs are hung, and the equipment is undergoing maintenance work.

Question 4: What does modern device management include? Equipment management is the management of the entire process of the equipment life cycle, including the management of the entire process of selecting equipment, using equipment correctly, maintaining and repairing equipment, and updating and transforming equipment. The equipment movement process can be divided into two states, namely the material movement form of the equipment and the capital movement form. The material movement form of equipment refers to the entire process of equipment starting from research, design, manufacturing or from purchase and acceptance into the production field, through use, maintenance, repair, update, transformation until scrapping and exiting the production field. The impact of this process Management is called the technical management of equipment; the capital movement form of equipment includes the initial investment, operating costs, depreciation, income, and measures and applications for upgrading and transforming the equipment. The management of this process is called the economic management of equipment. Equipment management includes both technical management and economic management of equipment. Technical management and economic management of equipment are organically linked and unified with each other.

Question 5: What aspects are included in the daily management of equipment? The following information is reproduced for reference

Daily management of equipment

1. Use and maintenance of equipment

The service period of equipment is the main stage of the equipment life cycle, and it is also an important period when the equipment operates and produces benefits. Therefore, equipment operation period management is very important. Maintenance and operation of equipment during operation have become an important part of maintaining good technical status of the equipment, preventing and reducing abnormal wear and sudden failures, and improving the economic benefits of the enterprise. According to past statistics, equipment failures caused by improper use or operating errors accounted for 20 to 35% of the total number of failures in Company T and Company H.

1.1 Contents of daily equipment maintenance

The daily maintenance of equipment is the responsibility of equipment maintenance personnel or operators. The current development trend is for equipment operators to be responsible for the daily maintenance of equipment and to train equipment operators into multi-skilled workers. For automated assembly line equipment, due to the complexity of the equipment, the requirements for daily maintenance of the equipment are relatively high, so the requirements for the quality and ability of the equipment operators are also relatively high. At present, the equipment maintenance work of Company T and Company H is basically completed by professional equipment maintenance personnel. Operators should be able to use production equipment correctly, and at the same time perform equipment inspection, lubrication, cleaning and tightening maintenance. These four aspects of work are performed simultaneously by the operator when inspecting the equipment.

(1) Inspection. Operators should check the operating status, operating parameters, lubrication, vibration, sound, temperature, and whether there is any peculiar smell of the equipment they manage, and use human senses or simple detection instruments to check the equipment.

(2) Lubrication. First check the lubrication condition of the equipment, the temperature, pressure, liquid level of the lubricating oil, whether the lubricating oil has deteriorated, and whether the oil circuit is smooth, etc. Regularly test the lubricants in use and replace or replenish the equipment with grease.

(3) Cleaning. Clean the equipment, ancillary equipment and the surrounding environment to maintain its original appearance and luster, without leaving any dead spots. Set and position all items on the production site, arrange them reasonably and neatly according to frequency of use and visual criteria.

(4) Fastening. During the inspection, if the fastening bolts of the non-rotating parts of the equipment are found to be loose, they must be tightened and fixed in time.

1.2 Programming of daily maintenance of equipment

Daily maintenance of equipment is standardized and programmed in accordance with fixed points, timing, quantification, standards, personnel, records and routes. Designated personnel refer to operators or full-time equipment maintenance personnel who have been trained and have certain practical experience, and are responsible for the daily care and maintenance of equipment management; designated points refer to determined inspections of key parts and common fault points based on the structure and operating characteristics of the equipment. Location and content; Quantitatively measure the wear, corrosion, deformation and thinning of the equipment, and measure the deterioration tendency according to maintenance technical standards to decide whether to repair or not; regularly determine the operator according to the operating status, change characteristics and production requirements of the equipment The inspection and maintenance time; setting the route is based on the layout of the production process and equipment, and stipulating the inspection and maintenance route; setting standards refers to stipulating the standards for judging equipment deterioration according to different operating time periods, and formulating corresponding inspection and maintenance methods, means and Operation process; set records. Develop a unified, simple and clear form for inspection and maintenance. The operator or full-time maintenance personnel will faithfully fill in the results of inspection and maintenance in the form. In particular, abnormal phenomena of the equipment should be fully and accurately recorded. At the same time, related operations Personnel should sign for confirmation.

1.3 Establish an independent management system for enterprise equipment

Gradually form an independent management system for the enterprise through the following seven steps: through initial cleaning (cleaning, inspection); to identify the root causes of equipment problems Research on key problems; preliminary preparation of standards and specifications; inspection practice; independent inspection; rectification and standardization; continuous improvement of independent management.

2 Equipment inspection system

2.1 System functions of the equipment inspection system

The equipment inspection system is an equipment management system centered on equipment inspection. It is also the basis of TPM. For automated assembly line equipment, the adoption of a spot inspection system can effectively reduce equipment failure rates, improve maintenance efficiency, improve production quality, and reduce maintenance costs, thus bringing significant economic benefits to enterprises. Full-time inspection personnel are responsible for equipment inspection and equipment management. They are the bridge and core between operation and maintenance. Inspectors have full responsibility for the equipment in their management area, strictly abide by standards for inspections, formulate maintenance standards, prepare inspection plans, maintenance plans, manage maintenance projects, prepare material plans and maintenance cost budgets. The inspection system consists of five aspects: daily inspections by job operators; regular inspections by professional inspection personnel; precise inspections by professional and technical personnel; expert...gt;gt;

Question 6: Under what conditions can daily electrical equipment work normally? The usage conditions of general electrical equipment are:

Air humidity: Question 7: What are the benefits of restoring equipment to factory settings? ? , is it a router? The device is restored to factory settings. After the restoration, it will be as new as new. You need to reset your user account.

Question 8: What are the gear processing equipment? How to distinguish usage? The processing equipment mainly includes: gear hobbing machine, gear shaping machine, gear grinding machine, and gear milling machine.

The involute lines of hobbing, grinding and shaping are formed naturally, so the involutes are correct and the meshing is good.

Most of the milling teeth are single-tooth processing, the milling cutter is selected according to the number, and the involute can only be approached.

Gear grinding is mainly used for precision gear processing and final processing after quenching of hardened tooth surfaces.

Question 9: How to check how many devices are connected to your wifi? First enter the router and enter the gateway of your router in the URL input field of the browser

Generally, the default gateway of the router is 192.168. 1.1, the default username and password are both admin

After entering, click the DHCP server on the left → and then select the client list in the drop-down list. All devices with subnets under the current router will be displayed on the right, including Computer and mobile phone or tablet terminal