digital oil level thermometer for oil immersed transformers (BWY-D804AITH)

Introduction to Oil Level Temperature Controller for Oil Immersed Transformers BWY-D804AITH

The BWY series transformer oil surface temperature controller is designed specifically for measuring and controlling the top oil temperature of transformers. The instrument has good protective performance and can be used normally for a long time under outdoor conditions. The instrument is equipped with adjustable temperature switches, which are used for starting multiple cooling systems, overheating alarms, etc. At the same time, the temperature signal can be remotely transmitted to the computer system to achieve synchronous display and control of transformer temperature. The temperature package of the transformer oil surface temperature controller is inserted into the oil hole at the top of the transformer oil tank and changes with the temperature of the transformer oil. When the temperature reaches the set point, the micro switch is driven to output a switch control signal to drive the cooling system and achieve the goal of controlling the temperature rise of the transformer. It can output PT100 platinum resistance signals and 4-20mA current signals for digital instruments and computer systems, achieving all-weather unmanned power station management.

The working principle of the thermostat is as follows

The temperature controller mainly consists of elastic elements, capillaries, and temperature sensing packages. The sealing system composed of these three parts is filled with temperature sensing medium. When the temperature changes, the volume of the temperature sensing medium inside the temperature sensing component also changes. This volume increment is transmitted to the elastic element inside the instrument through a capillary tube, causing a corresponding displacement. After being amplified by the mechanism, this displacement drives the pointer to indicate temperature changes and drives a micro temperature switch to control the corresponding cooling system, achieving the goal of controlling the temperature rise of the transformer.

	Oil level temperature controller: 1. Output signal: Pt100 platinum resistance signal, 4-20mA current signal (AC/DC220V or DC24V power supply). 2 working conditions: ambient temperature (-40~+55) ºC, relative humidity ≤ 95%. 3 measurement range: default (0-150) ºC, optional (0-160) ºC, (-20-140) ºC, (-45-150) ºC, etc, See the minimum and maximum scales on the dial. 4. Accuracy: Level 1.5, allowable error: ± (measurement range x 1.5%). 5 switch performance: Four or six sets of adjustable switches, each set of switches can be set freely within the full range. 6. Switching error: ± 2 ºC. 7 switch switching difference: (5 ± 3) ºC. 8. Rated power of switches: AC220V/5A, DC110V/3A. 9. Temperature bulb size:( Φ 14 x 150 mm, with an installation thread of (M27 x 2) mm. 10 capillary length: standard configuration of 6m (other tail length can be customized), the number after instrument number L represents the tail length. 11. Protection level: IP55. 12 BWY-80 series instruments provide two installation dimensions for users to choose from, one for external dimensions and installation dimensions 80mm x 100mm, 4- Φ 8; Another type is 144mm x 210mm, 3- Φ 7.
Digital temperature display instrument (optional): 1. Input signal: DC (4-20) mA standard current signal or Pt100. 2. Output signal: DC (4-20) mA standard current signal, output RS485 signal. 3. Working conditions: ambient temperature (0-50) ºC, relative humidity ≤ 85%. 4. Working power supply: AC220 x (1 ± 10%) V, frequency (50-60) Hz. 5. Accuracy level: 1.0 level. Display method: Digital tube display. 6. Installation method: embedded type (insert into the opening on the console and gently push in with force). 7. External dimensions: 160mm x 80mm x 94mm. 8. Opening size: 152+1mm x 76+1mm
	Pointer temperature gauge sensor: 1.Insertion depth not less than 150mm 2.Standard configuration of 6 meters, customizable length
Handheld fluorescent fiber optic thermometer 1. It can achieve close range meter reading, modify alarm values, and read historical data; 2. No transformer power outage required, no need to disassemble the thermometer cover. 3. Solve the difficulties of traditional mechanical transformer power outage, disassembly and calibration, disassembly and installation, etc