Normal working conditions
Limits on ◆ The ambient air temperature does not exceed +40 ℃, the lower limit is not more than -5 ° C, 24h, the average does not exceed +35 ℃.
◆ the installation site altitude height of not more than 2000m.
In the ambient air temperature of +40 ℃ ◆ relative humidity of the atmosphere does not exceed 50%, lower temperatures, higher humidity; wettest month of the monthly mean minimum temperature is +25 ℃, the average maximum relative humidity of 90%, and taking into account the condensation due to temperature changes occur in the surface of the product.
◆ the level of contamination level.
◆ run the place without a strong vibration and shock, no harmful gases corrode metal and damage the insulation, no serious dust, non-conductive particles and explosive hazardous substances, such as strong electromagnetic interference.
Structure and Properties
Structure
The FCQ5 dual power automatic transfer switching equipment of the load switch and the operating system (manual or automatic recovery), or the switch body and control system installed in a backplane, and split the controller installed in the cabinet panel and a dedicated line connection.
Structural characteristics of
◆ single actuator into the action to be completed by a single action, to ensure that only one end of the power supply and power to complete the close bonding.
◆ reliable mechanical interlock to any form of operation, are not caused by the two power input to the load side.
Electromagnetic coil structure is simple and less moving parts, reducing the failure rate with the use of repeatable and fast conversion.
◆ Multi-piece contacts the contact surface contact area and pressure, will not overheat or contact melting.
◆ reliable contact system in the same base, the two power supply side has a special silver-based alloys the main contact, no matter which direction the switch, the two power supply (A or B) can make it completely closed. can also be instantly converted in accordance with operating instructions.
◆ neutral point OFF position three-FCQ5 series dual power automatic transfer switching equipment to a safe location, the two power supply (A or B) completely disconnect the neutral point (OFF).
Performance
◆ manual operation and automatic recovery functions.
And automatic recovery functions: A power supply when the normal state, if A power blackout, B, power supply and electricity will be automatically converted to the B power supply; A power is restored the normal power supply, automatic conversion to A power power supply (A power supply first). Can guarantee the power supply on and off the load side with a load conversion, and security isolation.
◆ Security
◇ three security position (O ·);
◇ obvious to the disconnected state to implement safe isolation;
The ◇ emergency manual operation;
◇ unique interlocking design to ensure the operation of any type have only one end of the power supply;
◇ real double-throw switch, both sides of the arc chamber is completely isolated.
The ◇ electromagnetic instantaneous conversion, motor, and not affected by voltage fluctuations.
◆ neutral pole is not the first minutes after co-feature
AC 3-phase 4-wire 4-pole switch, the switch conversion action with a neutral pole (N) than the very first points slower turn-on characteristics, to avoid the instant abnormal voltage conversion process to produce, to ensure the safety of equipment.
◆ excellent breaking performance
Interrupter way to rely on reliable, current breaking arc duration, contact loss is minimal.
Specification and main technical performance is shown in Table 1
Table 1 of the major technical indicators
Application Wiring Diagram
Dual power automatic transfer switch electrical power line and load outlet connection shown in Figure 1
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