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FAQ
- In power system, the general conditions for the selection of electrical equipment are
- Rated conditions, such as voltage and current, thermal stability, dynamic stability check, the most basic
- For example, EPS emergency power supply and so on, as well as those used in public emergencies.
- The latest electric power emergency response and emergency plan for safety protection"Emergency treatment and safe latest power accident contingency plans to protect the implementation of manual" is based on the country's electricity production safety accident emergency system master, provides all levels of power supervision departments and the major power companies, power system, power grid to cope with major public emergencies working principle, organization system and operation mechanism, for guiding the competent departments and local governments at all levels in various industries and departments effectively deal with the power of public emergencies, protect public life and property safety, has an important role to reduce disaster losses.
- What are the customer groups faced by power intelligent equipment?Products such as electric capacitor reactive power control (capacitor module), reactive power compensation controller, the series of electric power meter, active filtering equipment, power monitoring system, energy management system, operating system and DC power system accessory products.
- Power capacitor is a kind of reactive power compensation device. Power system load and power supply equipment such as motors, transformers, transformers, etc., in addition to the consumption of active power, but also to absorb reactive power. If the reactive power is supplied by the generator, it will affect its active power output, not only uneconomical, but also lead to poor quality of the voltage, affecting the user's use.
- In order to ensure the normal operation of the power system and equipment to achieve a grounding
- 4) repeat grounding: in the low voltage three-phase four wire system (380V/220V), which is directly grounded in the neutral point, in addition to the working connection at the power supply, it is necessary to re connect the ground at the other place of the zero line. To ensure the safety and reliability of the zero line. It is simply to say that one or more points on the zero line are grounded again.
- What is the redundancy of electrical equipment
- Redundant system accessories:1, powerDual power supply system is widely used in high-end server products, the two power supply is load balancing, i.e. when the system is working for their system to provide power, when a power failure, another power will bear all the load. Some server systems to achieve the DC redundancy, and other server products such as Micron's NetFRAME 9000 to achieve AC, DC full redundancy.
- What is the definition of abnormal equipment, equipment failure, equipment failure and equipment accident? From which power standard?
- Exception: may be a precursor to the accident, has not yet caused the loss, the cause is unknown,Such as the normal operation of the cable overheating, burning plastic taste
- The two devices of the power system have those
- 4, relay protection and automatic devices, such as relays, automatic devices, used to monitor the operation of a system, rapid response to abnormal and accident, and then acts on the circuit breaker, protection control.5, DC power supply equipment, such as storage batteries, DC generators, silicon rectifier, etc., to provide control and protection of DC power supply and DC load and emergency lighting, etc..6, high frequency wave blocking device.7, since the cast device.
- I do sales of electrical equipment, how to deal with the power supply bureau?
- Step back, if you don't know that you will find the main leadership, director of the unit in charge of the production and operation of the unit production manager or office (the original electric power or power supply bureau has been zoned, renamed the power company, no longer belongs to the local government leaders). If not, you can be graded, which belong to one, you will find which one is responsible for leading the charge to negotiate. Above for reference only.
