Q:Rivers and lakes emergency, there is a 110kV and 10kV power supply line works, I would like to ask this kind of power project warranty items, scope, life and other detailed provisions where can be found? Are there relevant regulations? For example, if the provisions of the housing construction warranty, you can check the "construction quality management regulations," but the warranty content of power projects, what information should be checked? Note that the warranty is not repair. Waiting for good people reply, satisfaction and then points.

This is not the regulations of state Power Grid Corp to their line of work area to do some local line area for engineering team to do is sign the contract established general warranty of 1 years seems to include tower structure, grounding resistance, line fitting, a line on what channel estimation problem in within the scope of the contract

Q:The cost calculation of power equipment

The cost of your equipment maintenance is calculated according to the method of replacement and maintenance

Q:On the nameplate of the electrical equipment, what does ith UE ie mean?

UE subscript is rated voltage, rated current, rated power,Ith is a heating current,Ui insulation voltage

Q:How long has the power of power electronic equipment delivered water

Major equipment and componentsPneumatic conveying equipment in general by the receiver (such as pipes, nozzles, transmitter, etc.), wind pipe, pipe separator (the volume and the cyclone two), air lock (the tipping and rotary two, can be used as feeder, and can be used as a discharger) and the dust collector and fan (such as centrifugal fan, blower, water ring vacuum pump, air compressor and other equipment and components). The role of the feeder is to enter the material, resulting in a suitable material to gas ratio, so that the material start, accelerate. The role of the separator is to separate the material from the air and to sort the material. The utility model relates to an air lock device, which is used for feeding or discharging uniformly, and preventing air leakage. The role of the fan is to provide power for the system. High pressure centrifugal fan or water ring vacuum pump is used in vacuum suction system.

Q:Power equipment sales process, the customer asked the most questions thank you

3, the component parts of the device, which is the core component of the device, to master the working principle of the device oh;4, after-sales service problems, technical introduction of after-sales service;5, price, product prices and other brand products at what level;

Q:1, common measurement and control cabinet, what is the common measurement and control cabinet? What signals are measured? High voltage side (10kV and above) have the corresponding relay protection device, regardless of the panel or on the spot, will not be on the public measurement and control cabinet; the so-called public measurement and control cabinet is measuring what? Low voltage measurement and control? Or what, for example, thank you (power generation, power supply and distribution does not matter, can speak on the line)2, network equipment cabinet, I probably can understand, is from the equipment from various communication signals collected by the communication management unit, the output signal of Ethernet, this cabinet is the main communication management machine and switch is?3, how to locate the remote communication cabinets? What is the main role? What are the main equipment?4, why do we usually need GPS time device, what is the significance? What will happen if there is no?

The GPS device is used to synchronize the time of each station in the station, if the time is not synchronized when the failure of the failure of the failure of the report to see the action of each device has a relationship

Q:What are the technical measures to ensure the safety of the power line equipment?

Electricity, electricity, hang the ground and install signage, hanging Obscuration using personal security line

Q:What are the main interference sources of the two power system

There are three kinds of electromagnetic interference in power system: electromagnetic interference between the primary equipment, the primary equipment and the secondary equipment, and between the two devices, and the electromagnetic interference between the two devices. According to the propagation path of electromagnetic disturbance, it can be divided into conduction coupling and radiation coupling. A line in the power system of switching operation, fault, lightning strikes, transient current and voltage and electromagnetic radiation line, enter the two loop through various coupling modes, these pathways are electromagnetic voltage transformer, capacitor voltage transformer, current transformer, coupling capacitor, high voltage bus and the two cable distribution between the capacitive and inductive coupling transmission way, also have a line to the surrounding space transient electromagnetic radiation energy, is two times the equipment or circuit receiving radiation coupling way.

Q:Electrical equipment classification

Current carrying conductor and gas insulated equipment. Such as bus, power cable, insulator, wall bushingA device that limits over current or over voltage, such as current limiting reactors, surge arresters, etc.Transformer equipment: make a circuit of the high voltage and large current is reduced, for measuring and relay protection devices, such as the voltage and current transformer protection in order to ensure the normal operation of an electrical equipment, the operation status monitoring, measurement, control and adjustment of the equipment is called two electrical equipment. There are a variety of measuring meter, a variety of relay protection and automatic devices, DC power equipment, etc..

Q:Under the same voltage level, the rated voltage of the equipment is not exactly the same

The rated voltage of all kinds of equipment under the same voltage level are not completely the same as normal, different appliances the maximum withstand voltage is different, the design requirements of more electrical and marked a maximum voltage of 240V, some 250V. It is different from the actual working condition under different voltage (whether ideal and safe and reliable)