I. High & Low voltage cabinets installation of power plant
1. 10KV high voltage switch cabinet installation of power plant
2. 0.4KV low voltage switch cabinet installation of power plant
3. Installation of generator protection system, synchronization system, transformer protection, H.V. motor protection, circuit protection in a power plant.
II. Electrical configuration testing items of power plant
1. Vacuum circuit breaker insulation resistance measurement, each phase circuit resistance measurement and AC voltage withstand tests of 10KV H.V. switch cabinet.
2. DC resistance measurement of CT and PT, polarity test, ratio test, AC voltage withstand tests in 10KV H.V. switch cabinet.
3. AC voltage withstand tests for whole 10KV H.V. switch cabinet.
4. AC resonant test for 10KV H.V. electric cable.
5. DC resistance measurement of generator stator and rotor.
6. Generator stator coil insulation resistance measurement and DC voltage withstand tests.
7. Generator rotor insulation resistance measurement.
8. Generator rotor AC impedance and power loss tests.
9. No-load characteristic test of generator
10. Generator checking phase sequence (fist checking phase and second checking phase separately).
11. Generator short circuit characteristic test.
12. Measurement of residual voltage of stator after automatic magnetic blow-out and switch opening of generator.
13. Generator shaft voltage measurement.
14. Generator simulate synchronization.
15. All of the second circuit checking, measuring, switch tripping & closing tests, protection fixed value setting, protecting the STG trip test and magnetic blow-out tripping test for Steam Turbine and generator.
III.Electrical problem troubleshooting in power plant
Problem Description: a coal mine`s 35KV H.T. switchgear OC protection tripped suddenly in He`nan Province, it caused sudden power lost of mine fan and endanger miner safety.
Auto-reclosing via switchgears` automatic reclosing function, through analysis, the reason is a set of 3000KW generator failure. Specific reason is: When the turbo-generator was running normally, exciting voltage lost suddenly, leading phase operation happened, the generator absorbed reactive power and lead to becoming motor running. Generator protection and power plant connecting line protection did not launch. After the generator absorbed a certain value of reactive power, the 35KV H.T. switchgear`s OC protection tripped.
Investigation: generator and power plant connecting line protection setting fixed value exceed the protection fixed value of 35KV switchgear side, it lead to nearby protection did not launch and override trip when generator failure.
Electrical Cabinet Care,10Kv Electrical Cabinet Care,0.4Kv Electrical Cabinet Care,Electric Governing Reconstructing Shandong Qingneng Power Co., Ltd. , https://www.steamturbine.be
So, what is the establishment of a smart community system? What functions can the smart community service platform achieve?
I. Why are real estate developers now looking for a smart community transformation?
1. Changes in the scope of services Traditional property management includes the management of projects such as housing construction, public facilities, greening, sanitation, transportation, life order, and the environment. The community O2O model integrates various information systems and resources, builds a unified community information platform, and improves community services on the basis of traditional properties.
2. Transformation of business model From the traditional property to the community O2O, the change in business model is mainly reflected in four aspects: management focus, management methods, personnel structure and income structure.
Changes in management focus: The focus of traditional property management is on the management and maintenance of housing and ancillary facilities, related sites, and the maintenance of community environment and order. The community O2O model pays more attention to the needs of the owners and the property management becomes The process of co-management by the owners truly makes the service a reality.
Changes in management methods and personnel structure: Traditional property management adopts civil air defense management, which is a labor-intensive industry. There are many workers and low skill requirements. The community O2O uses information systems to achieve technical protection in security and surveillance. The managerial skills are also more demanding.
The change of profit model: The most direct change from traditional property to community O2O is its profit model. Community O2O income no longer depends solely on property management fees, and property management revenue will mainly come from various profitable ways such as customer value-added services. 
Second, the intelligence community transformation <br> <br> traditional three-step strategy for real estate operations and business community is not very seriously, but with the rise of the Internet economy, more and more of the community service system is rapidly becoming a new economic powerhouse , Then, the transformation of smart communities by real estate developers has become an inevitable trend.
How to play with the smart community model? Creating a sustainable and smart community solution for real estate developers is the key.
To achieve a truly smart community model requires three steps: building a smart community, building an O2O community platform, and building a service ecosystem.
1. Building a smart community system to achieve online and offline links, relying solely on mobile phone APP is not enough, community O2O needs to be based on smart communities to achieve. The construction of a smart community includes both hardware and software:
The hardware includes intelligent building, microelectronics technology and network technology. It refers to the application of various types of intelligent equipment and information systems, such as green buildings, access control systems, monitoring systems, video call systems, video intercom systems, tracking systems, etc.
The software includes the establishment of a digital platform within the home, an intelligent platform for the community, and an urban public information platform. It mainly refers to the use of information technology for medical services, e-commerce, public library services, use of public facilities, fitness, distance education, etc. The resources are integrated to meet the needs of the owners in many aspects such as clothing, food, housing and transportation. 
2. Build an O2O platform to use the mobile Internet to build a community-centered lifestyle service platform that will deepen service to residents. Community O2O platform can be built from three aspects: e-commerce, services, social networking.
E-commerce: Including online shopping supermarkets, targeted group purchases, etc., such as integrating traditional businesses within each five-kilometer shopping district, electronicizing traditional businesses, and embedding their products into the community O2O shopping platform; providing PC-side phones , WeChat, APP and other shopping channels and online payment methods; self-built logistics and distribution team.
Services: including community consulting services, housekeeping services, education services, courier services, virtual services, and card integration around the business.
Social aspects: including community social interaction, community WeChat group communication and so on. Through the creation of the O2O community platform, we gather popularity. 
3. Creating a service ecosystem To create a good service ecosystem is the core of the community O2O and the bottleneck that plagues community O2O operators. The real community O2O should be an ecosystem that fully embodies the concept of people-oriented and sustainable development, has the hardware and software functions of an intelligent community, integrates various types of O2O platform information, and uses communities and families as its service background.
The Internet as a channel to provide property services, provide refined services and high-end customized services, so that owners have a sense of belonging and identity to the community, forming a full participation of the owners, real estate, businesses, mutual symbiosis, mutual prosperity, and mutual promotion, so that the real property Integrate into life to increase comfort and happiness.
Conclusion: Under the smart community solutions, smart home companies or smart community solutions providers are focusing on real estate and internet + fields, allowing real estate developers to transform their sales from selling real estate into business operations in communities and business districts. Increase the competitiveness of real estate developers in community 020 and other areas. The future is not only a huge challenge but also a delicious big cake.
Enterprises are concerned about the traditional property management can not keep up with the demand of people nowadays for services. Therefore, the wisdom management of the community has become more important. To create a professional community service platform for the community, to solve the actual needs of the owners has become major real estate developers. And the problems that traditional communities urgently need to solve.