Terminal box semiconductor dehumidifier

NegotiableUpdate on 05/19

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Overview

Terminal box semiconductor dehumidifier

Product Details

Terminal box semiconductor dehumidifier

Scope of Application
Terminal box semiconductor dehumidifiers are used in power equipment such as outdoor terminal boxes, ring main units, high and low voltage control cabinets, high and low voltage switchgear, box type substations, dry-type transformers, instrument boxes, etc., which require automatic dehumidification and anti condensation. They are particularly suitable for equipment that is already in operation and needs to drain accumulated water. At the same time, this device can be used for a long time in strong electromagnetic fields and various harsh natural environments.

♦ Product Introduction
Terminal box semiconductor dehumidifierIt is a high-tech product specially developed for dehumidification and prevention of condensation in electrical cabinets. This device is installed inside the electrical control cabinet, and by locally creating condensation conditions, the humid air inside the cabinet condenses into water and is directly discharged outside the cabinet, which can quickly and effectively reduce the humidity of the air inside the electrical cabinet and suppress the occurrence of condensation. It has a significant effect on preventing problems such as aging of equipment inside the cabinet due to moisture and condensation, decreased insulation strength, secondary terminal breakdown, material mold, and corrosion of steel structural components.

♦ Product Parameters

Working power supply voltage	0~264VAC, 127~370VDC, 24VDC (special power supply can be customized)
rated power	≤60W
Dehumidification start-up value	Humidity RH=50% (default), can also be set
Auxiliary heating	Start value 5 ℃ (default), can also be set
Environmental temperature range	≥-20℃，≤+70℃
communication interface	RS485
Working temperature range	0℃~50℃
Working humidity range	20%~95%RH
Humidity display mode	3-digit digital display (0-99.9% RH)
Temperature display mode	Two digit digital display (-20 ℃~70 ℃)
dehumidification capacity	400ml/day (under+35 ℃ and 85% RH conditions)
Auxiliary electric heating power	≤ 200W (AC220V, please specify special power supply)
Overall dimensions	200mm×116mm×75mm
Installation method	Magnet adsorption/pendant
Dehumidification volume	0.8m³ ～1.0m³
drainage method	Hose drainage
weight	About 1.08kg
Shell material	阻燃ABS

♦ Product Features
1. Suitable for use in spaces that are not too narrow and can provide power supply
2. Quickly reduce the humidity inside the electrical cabinet control cabinet and remove any moisture directly from outside the cabinet
3. Vertical design, easy to install.
4. Integrated structure with built-in power supply.
5. Optional heater control function and data communication function [RS485 communication interface].
6. Real time display of operating status, fully automatic operation.

♦ Product Installation

1. The device is mounted in the middle and lower positions inside the cabinet using aluminum bar supports and fastened with M5 screws. Ensure that the device is level and not tilted during installation. [Figure D shows a portable magnet fixation]

Figure A, Figure B, Figure C, Figure D

Installation component usage diagram

2. Ensure that there is a space of more than 10 centimeters between the device and other objects, and that the fan vents are unobstructed.
3. Connect one end of the water intake pipe to the drainage outlet of the device, fix it with a clamp, and keep the middle of the water outlet pipe straight, without winding or bending, to prevent poor drainage; The other end leads to the outside of the cabinet and is equipped with insect proof plugs. The length of the water pipe can be cut according to the on-site situation.

4. The heater [optional] should be installed reliably and firmly, with a horizontal distance of not less than 10 centimeters from the cables and other components inside the cabinet. There should be no cables or other heat sensitive devices in the vertical direction.

♦ Functional Description

1) High humidity warning
After 10 hours of operation, if the humidity inside the cabinet still does not drop to the set working threshold, the device will issue a warning, and the "fault" light will turn on [restart light will turn off], reminding the user that the humidity inside the cabinet exceeds the dehumidification capacity of the device and that the dehumidification power needs to be increased.
2) Fault alarm
This device experienced a malfunction during operation and displayed a fault code, while still in working condition.
3) Temperature compensation
When the temperature inside the cabinet is below 5 ℃ (default), this device controls the heater to provide temperature compensation to the cabinet through the auxiliary heating control interface. When the temperature inside the cabinet is 3 ℃ higher than the initial set temperature, stop the auxiliary heating.
4) Fault alarm output

When the power supply, air supply system, or dehumidification system malfunctions, a fault code is displayed and an alarm contact [passive contact, contact capacity: AC220V/1A] is simultaneously output. It can also remotely transmit the current humidity value, preset humidity value, and fault information through the RS485 communication interface.

♦ Product Maintenance

1) Regularly check whether the usage space of the device is relatively enclosed, reduce the entry of humid external air into the cabinet, and avoid reducing the dehumidification effect.
2) Regularly clean the air inlet and outlet to prevent blockage and avoid affecting the dehumidification effect.
3) Regularly check whether the drainage pipeline is unobstructed to prevent condensation water from overflowing the collector and seeping out from the gaps in the casing after blockage.

♦ Inspection Report