In response to the special application environment of high-speed tunnels, we designed a special UPS and solutions that have the functions of moisture-proof and can cope with the harsh environment such as condensation, dripping, exhaust gas corrosion and dust pollution in tunnels. The scheme adopts isolated air design, and the circuit and electrical parts adopt full sealing device. The external moisture is not easy to enter, thus protecting the electronic device: the PCB is sprayed with conformal coating, which can dust proof and moisture proof, and make the product more reliable.
The overall design structure is divided into two layers. The upper layer is the electric main control cabinet part. It adopts a fully sealed design to prevent external moisture, dust and the like from entering. The heat exchange inside the box is conducted by externally installing an aluminum radiator device for heat dissipation. The fan is cooled by strong wind, and the upper IP rating is IP55; the lower part is transformer, electric actuator, and the terminal part of the customer is installed, and the transformer has high insulation level and good exhaust system, so it can be used in high temperature working environment.
|Input voltage||220VAC ± 25%|
|Output voltage||220VAC ± 1%|
|THD||Sine Wave THD＜3%(Resistive full load),THD＜7%(Nonlinear load)|
|Transient response||±5% at full load|
|Overload ability||105～125%≥ 60s,126～150%≥30s The recover point is 70%|
|Protection Function||AC input or output above or below the range of voltage Overload ,over temperature and short circuit protection|
|Communications||RS232 RS485(optional),Dry contact(optional)|