Luling Huake plastic shell dry-type transformer temperature controller BWD-3 * * 0 dry-type transformer temperature controller

 Liling Huake Electronics Co., Ltd. provides all product services for dry transformer temperature controller Service conditions Ambient temperature: - 10 ℃~+55 ℃; Relative temperature: 5-95%; Atmospheric pressure: 60-160KPa; Working voltage: AC170-AC250V (48-60Hz) 2. Measurement range: - 40.0-200 ℃ 3. Resolution: 0.1 ℃ 4. Measurement level: 0.5 5. Control precision: 1 ℃ 6. Power consumption:<8VA 7. Weight: ＜ 1Kg 8. Sensor parameters: PT100/thermal platinum resistance 9. Anti interference performance: in accordance with the standard of T7631 10. Contact capacity Fan: three groups of AC125V/15A or AC220V/10A or one group of single-phase active fan AC220V/10A **Temperature alarm: AC125V/15A or AC220V/10A **Temperature tripping: one group of AC125V/15A or AC220V/10A 11. The overall dimension of the equipment is 80mm × 160mm × 134mm, and the size of the embedded opening is 154mm × 77mm Function introduction 1. Detect and display the winding temperature of three-phase wire package (iron core) or only display the temperature of one phase winding with high temperature in three-phase wire package (iron core) winding. Each phase is displayed for about 8 seconds during patrol display. 2. Fault audible and visual alarm: when the sensor fails, the corresponding A, B and C fault indicators will be on, and the machine will beep and connect the alarm contacts. The display shows X-Err, and X indicates the fault phase. 3. Fan startup and shutdown function: when the temperature of one phase in the three-phase line winding reaches the set fan startup temperature value, the fan starts automatically, and the fan indicator lights up when the fan starts. When the temperature of no phase in the three-phase line winding is greater than the set closing value of the fan, the fan will shut down automatically. When the sensor is not connected, the fan is in the starting state. 4. * * Temperature alarm function: when the temperature of one phase in the three-phase line winding reaches the set * * temperature alarm temperature, the temperature controller will give an audible and visual alarm, and connect the alarm output terminal to provide a switch signal to send an audible and visual alarm to the remote control cabinet. 5. Automatic tripping function: when one of the three groups of wire wrapped windings reaches the set tripping temperature value, the temperature controller connects the tripping output terminal to provide a switch signal to the remote control cabinet to start the tripping circuit. (About 6s delay is specially set to prevent tripping caused by accidental factors). 6. Manual startup and shutdown of fan function: press the fan key to start the fan, and then press the fan key to shut down the fan. If the fan is started manually but not shut down manually, it will shut down automatically after about 15 minutes. 7. Fan timing detection function: in order to avoid corrosion, locked rotor and damage caused by fan not starting for a long time, a fan timing detection function is specially provided. The timing start time can be set, and the range is 0-199 hours. When the set value is reached, the temperature controller automatically detects that the fan is started for about 2 minutes at a time, and the function will be canceled when you enter 000. 8. "Black box" function: it can record the winding temperature of three-phase line (iron core) when the temperature controller is powered off, as well as the operating state of the machine. 9. All temperature settings can be directly set through the touch key on the panel. To prevent miscellaneous personnel from setting, the temperature controller is equipped with a password, which can only be set if the password is entered correctly, otherwise it can only be viewed but not set. Key description 1. Setting key: press this key to enter the parameter setting state when working normally; In parameter setting status, press this key to write the setting parameters and enter the next parameter setting; When the "black box" records the inspection status, press this key to end the inspection record status and enter the normal working status; Press this key to enter the normal working state when the function is tested; 2. Shift/fan key: press this key to manually switch on and off the fan under normal working condition; When the parameter is set, press this key to change the set flashing position; This key is invalid when "black box" is queried; 3. Add/key: press this key during normal operation to switch/patrol display status; In the parameter setting status, press this key to increase the data of setting the flashing bit by 1; This key is invalid when "black box" is queried; 4. Query key: press this key when working normally to enter the "black box" query status; It is invalid to press this key in parameter setting status; When the "black box" is in query status, press this key continuously to check all records and enter into normal working status; 5. Dry transformer temperature controller communication function, if you need to provide protocols and other documents, please contact our company. 6. Operating instructions for 4-20mA current output function of dry transformer temperature controller; Dry transformer temperature controller also has three or four 4-20mA analog current output function. Three or four circuits of current are used to transmit the temperature of A, B, C three-phase wire package or iron core respectively. The corresponding relationship between current output and temperature is: 4-20mA current output