Second, according to the use situation, it is divided into three types: in use, unused and unnecessary. Fixed assets refer to all kinds of fixed assets being used by enterprises, including machinery and equipment that have been temporarily stopped due to seasonality and major repairs and stored in the user department for replacement. Unused fixed assets refer to new fixed assets that have not been put into use and fixed assets that have been approved to stop using. Unused fixed assets refer to the fixed assets that enterprises do not need and are ready to deal with.
Third, according to the ownership of property rights, it can be divided into three categories: self-ownership, investment acceptance and lease-in.
Fourth, according to the physical form, it can be divided into five categories: houses and buildings, machinery and equipment, electronic equipment, transportation equipment and other equipment. Fifth, according to the shortest service life of fixed assets, it is divided into 3 years, 4 years, 5 years, 10 years and 20 years.
Question 2: What is the running state of equipment A. 1?
Refers to the switch and knife of the equipment are in the closed position, and the loop from the power supply to the receiving end is connected (including auxiliary equipment such as voltage transformer and lightning arrester); All relay protection and automatic devices are in the input position (except those required by dispatching), and the control and operation circuits are normal.
A.2 hot standby state
Refers to the equipment in the same operating state with only the switch off and the knife still in the closed position.
A.3 cold standby state
Refers to the switch and switch knife of the equipment are in the off position (including the switch knife of the line voltage transformer). Remove the secondary fuse, bus differential protection and fault protection clamp of line voltage transformer (including the protection clamp of tripping other switches).
3. 1 When the breaker of line voltage transformer is connected with lightning arrester, the breaker of line voltage transformer will not be opened when the line is changed to cold standby operation (only when the line is changed to maintenance state, the breaker of line voltage transformer will be opened).
3.2 When the line voltage transformer knife is not connected to the lightning arrester and the line is changed to the cold standby state, it is only necessary to open the voltage transformer knife (change the voltage without the high voltage knife and remove the low voltage side fuse) to run the line voltage transformer.
A.4 maintenance status
Refers to the equipment all switches, switch off, hang the grounding wire or close the grounding knife. "Maintenance status" is divided into "switch maintenance" and "line maintenance" according to different equipment.
4. 1 Line maintenance: It refers to closing the grounding knife of the line or installing a grounding wire on the line side of the line knife on the basis that the line is in a cold standby state.
4.2 Switch maintenance: it means that both sides of the switch are opened and the fuse of the switch operating circuit is removed. The bus differential CT of the switch is separated from the bus differential circuit (stop using the bus differential first, disassemble the bus differential CT circuit and short circuit to the ground). After measuring the bus differential unbalanced current, put it into bus differential protection within the allowable range), close the grounding knife or install grounding wires on both sides of the switch.
4.2. 1 main transformer is running, but when repairing one side switch, the longitudinal differential CT of the switch should also be separated from the longitudinal differential circuit of the main transformer.
4.2.2 In the process of AC circuit switching, bus differential protection or longitudinal differential protection should be stopped for a short time.
4.2.3 If there is a voltage transformer between the overhauled switch and the circuit breaker of the line (or transformer), open the circuit breaker of the voltage transformer (or remove the high and low voltage fuses).
4.3 Maintenance of main transformer: switch and side knife on each side of main transformer are opened, and grounding wire is hung on each side of transformer (or grounding knife is closed).
Question 3: The running state of electrical equipment includes: running state, hot standby state, cold standby state and overhaul state. The operation status includes: the switch and the switch of the equipment are in the closed position (including voltage transformer and lightning arrester), and the loop from the power supply to the receiving end is connected. Hot standby state: only by switching off the equipment, the knife is still in the closed position. Cold standby state: refers to the equipment switch and switch knife (including voltage transformer and lightning arrester) in the off position, and the high and low voltage fuses of voltage transformer are removed. Overhaul status: it means that the equipment is equipped with grounding wire, signs are hung and the equipment is overhauled on the basis of cold standby.
Question 4: What does modern equipment management include? Equipment management is the management of the whole process of equipment life cycle, including the management of equipment selection, correct use, maintenance and renovation. The process of equipment movement can be divided into two States, namely, the material movement form of equipment and the capital movement form. The material movement form of equipment refers to the whole process of equipment entering the production field from research, design, manufacturing or purchasing acceptance, after use, maintenance, repair, renewal and transformation, until it is scrapped and withdrawn from the production field. The management of this process is called technical management of equipment; The form of capital movement of equipment, including initial investment, operating expenses, depreciation, income, measures and applications of upgrading itself, is called economic management of equipment. Equipment management includes technical management and economic management of equipment. Technical management and economic management of equipment are organically linked and unified.
Question 5: What are the aspects of daily equipment management? Reprint the following information for your reference.
Daily management of equipment
1 Use and maintenance of equipment
The service period of equipment is the main stage of equipment life cycle, and it is also an important period for equipment operation to play a role and produce benefits. Therefore, the management of equipment operation period is very important, and the maintenance and operation in equipment operation has become an important link to keep the equipment in good technical condition, prevent and reduce abnormal wear and sudden failure, and improve the economic benefits of enterprises. According to previous statistics, the equipment failures caused by improper use or operation errors in T company and H company account for 20% ~ 35% of the total failures.
1. 1 Daily maintenance contents of equipment
Daily maintenance of equipment is the responsibility of equipment maintenance personnel or operators. The current development trend is that equipment operators are responsible for the daily maintenance of equipment and train equipment operators into multi-skilled workers. For the equipment of automobile production line, due to the complexity of the equipment, the daily maintenance requirements of the equipment are higher, so the quality and ability of the equipment operators are also higher. At present, the equipment maintenance work of T Company and H Company is basically completed by professional equipment maintenance personnel. Operators should be able to use production equipment correctly and check, lubricate, clean and fasten the equipment at the same time. These four aspects of work are carried out at the same time when the operator checks the equipment.
(1) check. Operators should check the operation conditions, operation parameters, lubrication, vibration, sound, temperature, whether there is peculiar smell, etc. Check the equipment with the feeling of using people or with simple testing instruments.
(2) lubrication. First, check the lubrication of the equipment, the temperature, pressure and liquid level of the lubricating grease, whether the lubricating oil has deteriorated and whether the oil circuit is unblocked. Regularly detect the lubricant in use and replace or replenish the grease of the equipment.
(3) clean. Clean the equipment and ancillary equipment and the surrounding environment, keep its original appearance and luster, and leave no dead ends. All items on the production site should be fixed and positioned according to the frequency of use and visualization standards, and arranged reasonably and neatly.
(4) fastening. If the fastening bolts of the non-rotating parts of the equipment are found loose during the inspection, they should be tightened and fixed in time.
1.2 Daily maintenance of equipment
The daily maintenance of equipment is standardized and programmed according to fixed point, timing, quantification, standards, personnel, records and routes. Designated personnel refer to trained operators or full-time equipment maintenance personnel with certain practical experience, who are responsible for the daily maintenance and maintenance of equipment management; Fixed point refers to determining the inspection parts and contents of key parts and common fault points according to the structure and operation characteristics of equipment; According to the maintenance technical standards, the deterioration trend of equipment wear, corrosion, deformation and thinning is determined quantitatively to decide whether to maintain or not; Determine the inspection and maintenance time of operators on a regular basis according to the operating conditions, changing characteristics and production requirements of the equipment; Determine the route according to the layout of production technology and equipment, and specify the inspection and maintenance route; Standard formulation refers to the formulation of standards for judging the deterioration of equipment according to different operating periods, and the formulation of corresponding inspection and maintenance methods, means and operating procedures; Make a unified, simple and clear form for easy inspection and maintenance. Operators or full-time maintenance personnel will fill in the form truthfully, especially the abnormal phenomena of equipment, which should be recorded completely and accurately, and the relevant operators should sign for confirmation.
1.3 Establish an independent enterprise equipment management system.
After the following seven steps, the independent management system of the enterprise is gradually formed: through preliminary cleaning (cleaning and spot check); Solve the root cause of equipment problems; A preliminary compilation of standards and specifications; Spot check practice; Self-inspection; Rectify and standardize; Continuous improvement of independent management.
2 Equipment inspection system
2. 1 System function of the spot check system
Equipment spot check system is an equipment management system centered on equipment spot check, and it is also the basis of TPM. For the equipment of automobile production line, the spot inspection system can effectively reduce the equipment failure rate, improve the maintenance efficiency, improve the production quality and reduce the maintenance cost, thus bringing remarkable economic benefits to enterprises. Full-time spot check personnel are responsible for equipment spot check and equipment management, which is the bridge and core between operation and maintenance. The spot inspector shall take full responsibility for the equipment in his management area, strictly abide by the spot inspection standards, formulate maintenance standards, prepare spot inspection plans and maintenance plans, manage maintenance projects, and prepare material plans and maintenance cost budgets. The spot check system consists of five aspects: the daily spot check of post operators; Regular inspection by professional inspectors; Accurate spot checks by professional and technical personnel; Expert >>
Question 6: Under what circumstances can daily electrical equipment work normally? The use conditions of general electric equipment are:
Air humidity: Question 7: What are the advantages of restoring the equipment to factory settings? Is it a router? The equipment is restored to the factory settings, and it is as good as new after restoration. You need to reset your users.
Question 8: What are the gear processing equipments? How to distinguish usage? Processing equipment mainly includes: gear hobbing machine, gear shaper, gear grinding machine and gear milling machine.
Involutes for hobbing, grinding and slotting are all naturally formed, so the involute is correct and well meshed.
Most of the milling teeth are single-tooth machining. Choosing milling cutters according to the number can only approach involute.
Gear grinding is mainly used for precision gear machining and the final machining of hardened tooth surface after quenching.
Question 9: How to first check how many devices are connected to your wifi and enter the router, and enter the gateway of your router in the URL input field of the browser?
Generally speaking, the default gateway of a router is 192. 168. 1, and the default user name and password are admin.
After entering, click the DHCP server on the left → and then select the client list from the drop-down list. All devices under the current router will be displayed on the right, including computers, mobile phones or tablet terminals.