abercrombie ireland CCS Control Systems Common Tro

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CCS Control Systems Common Troubleshooting


. Belt run monitoring device to stop working (alarm) belt failure or wiring run monitor circuit. e. E2PROM fault U4 board computer chip damage. f. NVROM failure (alarm) u44 damage or brown-out detection circuit fault, not the normal test for coal supply situation. g. Coal feeder discharge port plug (tripping) The main reason is to block coal stoker coal or block damage to the protection switch malfunction. h. LOCAL mode or fixed degrees of coal because the coal feeder in the LOCAL mode or in calibration mode is not allowed on the coal belt, the belt at this time if there is coal or coal-switch malfunction will cause tripping. i. Remote display of total failure (alarm) is set to the initial value of the coal machine parameters set too small, resulting in the total material weight of the pulse can not be properly issued. j. Coal rate is mainly the (alarm) 22 Northeast Electric Power Technology 2003 11 triggered lightning rod bushings effect discharge test DischargingTestonEffectofAttractingLightningStroke byLightingRodwithInsulationSleeve room Lian, Shu-Sheng Chang, Tong grams (Northeast Institute of Electric Power, Jilin, Jilin 132012, China) Abstract : lightning rod for use in the presence of triggered lightning effect is not strong,tory burch outlet, shielding occurs when there is damage caused by lightning, introduced a lightning rod with insulation sleeve and a needle through the simulation of the effect of the number of triggered lightning impact. The results of the power system lightning protection devices to improve and perfect a certain reference value and practical significance. Keywords: lightning; triggered lightning pin; discharge test [CLC] TM866 [Document code] B [Article ID] 1004-7913 (2003) 11 a O022-02 Lightning is the spectacular nature of sound, light, electric symbiosis. As a very frequent lightning activity, to people's lives and work of great impact, with great destructive power. Lightning rod is used for the main power system lightning protection devices. Operation and practice, the lightning rod within the scope of its protection from time to time around the attack occurred. Thundercloud electric field distortion to enhance the ability of the lightning rod, through laboratory simulations, with the insulating sleeve of the needle rod and the number of triggered lightning effect, test results show that a lightning rod than with insulating sleeve lightning triggered lightning current capability has greatly increased, and the number of different needle triggered lightning effects are also different. And to the surrounding objects to avoid being struck by lightning. Figure 1. Figure 1 the role of a lightning rod lightning triggered lightning protection principle 2 are insulating sleeve mechanism triggered lightning rod lightning rod is perpendicular to the ground on metal conductors, lightning pilot in the initial stage of development, leading from the ground due to the higher, so the pilot direction of development from the ground impact of objects, is random. But when the pilot development to a height, a lightning rod on the ground will affect the pilot's direction, the first guide rod oriented development. This is due to the accumulation of electrostatic induction in the rod with the pilot on the opposite polarity charge, electric field strength near the needle so that a significant increase in distortion of the electric field between the thundercloud and the earth, arising from the needle upward head guide, lead mine in Since then, the alarm is usually due to their belt there is no coal, no-load induced. k. Motor starter fault (trip) on the coal feeder circuit breaker with a pair of Vice-node, whose role is to start the device states to the coal controller. Generally occurs because of the failure node fouling or burning of this extension led to increased contact resistance, resulting in the coal feeder miscalculations trip. 1. Motor speed control fault (trip) the failure is usually due to damage or tachometer feedback speed control board failure, this time it does not truly reflect the status of coal feeder speed. Obviously the greater the charge density near the needle, the distortion of the thundercloud electric field strength,ghd planchas, the stronger, the greater the lead mine space, namely, the protection scope. To do this, in addition to increasing the height of the lightning rod,p90x workout schedule, based on solid dielectric polarization theory, the dipole form of the dielectric in the electric field under the directional movement,abercrombie ireland, ordered by the electric field direction of the surface bound charge to the media, showing the polarity. As the polarization, the electrode has more additional charge, additional charge because the original charge on the electrodes of the same polarity, so the charge density 5 Conclusion CCS control system failure with the randomness and diversity, as long as the movement and maintenance personnel to understand and master the common failure causes and mechanisms, and through detailed analysis of these issues, the right to determine, in time of failure are excluded. Author: Zhang Wei (1975), male, engineer, now working at Huaneng Dalian Power Plant Maintenance Department. (Received 2003-07-15)
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