Before transformation condition
The Yantai sea road telecommunication central bureau is the Yantai public opinion female bureau, uses two sets of aggregate capacities is 4000A controls the power source for public opinion equipment power supply and so on commutation equipment, transmission facility, 寻呼, network management, telegram, carrier, direct current overall load 2100A. Originally controls the power source already to the retirement time, therefore the breakdown many, the noise big, maintains difficultly, to expand Rong Nan, the engine room is crowded, therefore, the Yantai telecommunication bureau decided to originally controls the power source using the switching power supply to carry on shears meets the replace.
Because central bureau telecommunication equipment many, above its load line total 150, moreover also has the long-distance exchange and the transmission and so on the important equipment, therefore requests the switching power supply stably reliable, entire shears meets the process safely, is safe, inspects, the proof in every way after the Yantai telecommunication bureau, finally decided system completes the Yantai central bureau using Ai Mo the fresh PS481000/100-4000A to change the work.

Ai Mo fresh transformation plan
Ai Mo fresh network energy relies on its rich on-line shears meets the experience and formidable controls the strength which the power source transforms (to have specialized controls transformation technical team, has special-purpose controls transformation to shear meet a train or car), in line with "shears meets the process safely, is reliable; Shears meets the plan completely, is detailed; The project appraisal economy, is reasonable "the principle, formulated the science with the Yantai telecommunication bureau to shear together meets the plan.
In order to guarantee the communications security, lives the large capacity electrical power system PS481000/100 rectification screen replacement using Ai Mo originally to control the power source the rectification screen, to the original exchange screen, the direct current screen does not make the replacement, reduced has controlled the risk which the power source on-line sheared meets.
In order to enhance the equipment the intellectualized degree, lives the advanced collection type monitoring pattern correspondence power source power distribution monitoring module using Ai Mo to the original exchange screen, the direct current screen carries on the intellectualized transformation, after enable its transformation the entire electrical power system to have synchronized the high intellectualization.

Transformation result
Under March, 2000, fresh network energy joint effort in the Yantai telecommunication bureau and Ai Mo, used 4 days time smoothly to complete entire has sheared takes over the job.