This solves the problem of short power failure of the UPS, technically transforms it, adds UPS power supply, and upgrades the control part of the original power supply system. The new UPS power supply is the US CASTLE series C3K online uninterruptible power supply. The operation mode of the online UPS is that the mains and the electric equipment are isolated. The mains supply will not directly supply electricity to the electric equipment, but will be converted into direct current by the UPS, and then divided into two ways, one for the battery and the other for the battery. Turn back to AC power, power supply to power equipment, when the power supply quality of the mains is unstable or power failure, the battery is switched from charging to power supply, and the power is turned back to charging until the utility power returns to normal. The whole process of UPS is involved in the whole process. The working principle diagram is as shown above.
In order to cooperate with the new UPS power supply, we use a micro-control time switch and an AC contactor to realize automatic transmission and power-off of each equipment in the duty room, and also has a straight-through power transmission function. Among them, the AC contactor CITl-20 has 4 sets of normally open contacts, two sets of normally closed contacts, the UPS output is connected to the normally open contact, the line pack voltage is controlled by the UPS output control micro-control time switch KC316T, and the mains is connected to the normally closed contact. After the line package is powered on, the relay is closed, the normally open contact is connected, and the UPS is powered. If the UPS is faulty and there is no line package voltage, the normally closed contact is turned on, and the mains supply is directly connected. The frame diagram of the UPS power supply system transformation is shown in the figure below.
After this transformation, the UPS power supply realized automatic transmission and disconnection. The duty attendant in the morning and evening shifts does not need to switch the UPS power switch. If the UPS is faulty, simply disconnect the air switch before the time switch, and at the same time, turn the control table to the pass and continue to supply power. The air switch of the TV transmission signal monitoring section does not need to be disconnected, and the TV program will be automatically powered off after the TV program is turned off. If the lightning is severe during the rainy season, when disconnecting the satellite receiver, simply turn off the air switch that controls the satellite receiver's power supply.
Through the technical transformation of the UPS power supply system, the newly added UPS power supply ensures that each device can realize uninterrupted power supply. The newly added control part realizes that each device automatically sends power before the transmitter is turned on, and automatically powers off after shutdown. Automate the entire broadcast system.
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