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
For users who have long paid attention to the liberation of trucks, Liberation J7’s “real capacity†has been gradually unveiled after several exposures such as “camouflage spy photosâ€, road test flashes on the test ground and real shots on the shop floor. Mysterious "veil", especially in the appearance and interior design, compared to J6 make a big change upgrade, but for the user's most concerned about the powertrain performance and driving experience, has been a mystery!
According to reports, the Liberation J7 will have official mass production capacity by the end of this year, and it is expected that it will be listed in volume in early 2018. As we all know, every model on the market, all have to undergo a long-term rigorous all-round testing, in which the vehicle's real operating environment testing as one of the last part of the product listing, is essential. According to reliable sources, the first batch of vehicles that actually liberated the J7 will also be delivered to users in advance of production vehicles. At that time, the majority of card-mates will have the opportunity to see the liberation of J7 on the road, and how will the liberation of J7 be performed? How will the driving experience be more concrete?
The vehicle information and the office information of the Shang Dynasty were affixed in the upper left corner of the vehicle to prove that the vehicle is about to be put on the market. The vehicle information and the Shang Dynasty office information are attached to the upper left corner of the vehicle to prove that the vehicle will be put on the market soon.
Of course, it is natural that users who can “enjoy†liberating J7 in the first batch are not ordinary. According to the reporter's understanding, they not only liberated the brand's "dead loyalty," and thought that the liberation of trucks was a proud product upgrade, but they were also veritable old drivers. They had a deeper understanding of truck technology and had mature transportation routes. Can help liberate J7 to output the true performance of vehicles in various transportation conditions, and provide manufacturers with reliable test data, helping to liberate the birth of J7.
This year marks the tenth anniversary of the release of the J6 Truck. Looking back on this decade, the new brand has also “emerged everywhereâ€, but the market verified that “Ginger is still old and spicyâ€. The current liberation of the J6 heavy truck can be said to be “positive youthâ€. In the past February, it successfully helped FAW Liberation Heavy Cards monthly sales exceeded 20,000 units, and it has led the domestic heavy truck sales list for more than ten months.
This "amazing" performance is inseparable from the product's constant innovation ability, from the liberation of the J6 to the liberation of JH6, from the liberation of the J6 pilot to the latest release of the new liberation of the J6, each model has continued technical breakthroughs, long oil change technology, Large horsepower upgrades and regional custom models, each one is the industry benchmark. Nowadays, the liberation J7, which has been called out for a long time, is the unique user world that has been liberated by J6. It will wait and see how the newest car will be staged.