MRD-BJ Transformer Neutral Ground Resistor
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 30 unit/month
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In distribution systems technique of neutral ground is usually categorized into neutral unground, neutral ground via resistor, and neutral-point grounding via arc suppression coil. Differnent grounding ways decide various operating ways. With development of economy , over-head line which is the main way of past power grid has been replaced by cable running line. Meanwhile, some new equipments such as hermetic compact structure of SF6 swichgear, twisted polyethylene cable and zinc oxide arrester are more and more widely applied. Therefore, non-effective grounding technique is unsuitable to present situation. As a result, to set neutral point grounding effectively is the important facet of power supply we should work on.
If neutral grounding resistance cabinet is installed, the current flowing through grounding point and neutral point would be much lower than that when metallicity grounding. Therefore, adopting neutral grounding via resistance could decrease transient overvoltage when single-phase grounding, and eliminate arc flash hazards like transient overvoltage and some resonant overvoltage associated with the first ground fault, and moreover it could adopt relays to quickly locate the fault circuit and clear it up.
Mingrui has outstanding technical researching team and superior equipments, specially concentrate on research & development, production, sales and service of neutral grounding series products of power distribution system. The transformer neutral grounding resistance cabinet we developed and produced is applicable to 6~35KV power distribution grid of cable running lines in cities, large industrial enterprises, factories, airports, seaports, subway and etc. as well as 0.66KV system in mine digging and 0.4kv/6kv/10kv system in power plants.
- Q: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.
- Q:Private enterprises must be free transfer of power facilities
- The new user electrical facilities investment, after the investment asset is transferred to the power supply enterprise, according to the need for "business rules", the actual state of electricity contribution, interface division, maintenance management ability, after consultation by both parties to determine.
- Q:The problem of electric power equipment withstand voltageWhy does the pressure decrease when the altitude is high? The air is thin, is not easy to breakdown (vacuum breakdown is not very low atmospheric pressure)
- The air is easy to produce ionization, so it is necessary to improve the insulation level and increase the gap of high voltage electrical apparatus
- Q:Generator, shunt capacitorShunt reactorShunt capacitorStatic compensator
- The power supply in the power system is a three-phase sine alternating current generated by the generator, in which there are two kinds of electric power.
- Q:Power equipment is required to replace the dimension, the state has no relevant provisions
- This depends on the provisions of the local power supply department, generally not mandatory requirements.
- Q:I would like to open a company on the construction of power equipment, what needs to be prepared? (including qualification level, capital requirements, etc.) the more detailed the better
- The second is the power facilities installation, repair and testing qualification. Also divided into one to four, respectively, by the State Electricity Regulatory Commission, power supervision bureau and the city in the county, the county's dispatched office - to do the examination and approval of the electricity office. In some places there may be five, is designed for the establishment of the company.As for the size of the funds, different levels of economic development, the requirements are different, only to the location of the business sector consulting.In the actual participation in bidding and other construction activities, be sure to carefully read the tender documents and other construction projects, different projects for different requirements of different qualifications.
- Q:What is the power plant
- Production of generators and other power generation equipment, and some will produce some electricity, belonging to the state monopoly of the infrastructure industry.
- Q:What is the importance of annual maintenance of electrical equipment? What harm does not do? As detailed, urgently!
- The necessity of power equipment testingPower equipment is the hub and channel in the transmission and distribution network, in the course of the use of equipment will be aging, disrepair, hidden trouble, etc.. However, these situations can not be ruled out by the eyes of the people, the staff of the experience, it is necessary to detect the special power equipment to check out these security risks and the organization of human resources in a timely manner to exclude.In the operation of electric power, the safety of electric power has always been a chord of the electric power. Power equipment testing is actually played a role in prevention and detection of hidden dangers. So it is very important to detect the electric equipment (i.e., the preventive test of electric equipment).
- Q:What power equipment is needed for the motive,
- For parts processing and manufacturing, the equipment is gone. For assembly, see engine size. General small assembly, assembly, commissioning.
- Q:How to handle the qualification test, what kind of power equipment
- To submit the application form for the installation of power equipment (repair, test)";
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MRD-BJ Transformer Neutral Ground Resistor
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 30 unit/month
OKorder Service Pledge
OKorder Financial Service
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