Dry-type transformer computer temperature controller

The main function of dry-type transformer temperature controllerBelow:

Temperature monitoring and display

Real-time acquisition and accurate display: real-time temperature acquisition through the Pt100 platinum RTD pre-embedded in the transformer winding, and digital display, intuitive presentation of the actual temperature of the winding, the measurement range is generally in the -30.0 ℃ ~ 240.0 ℃, the accuracy can be up to 1 level or higher, the resolution of 0.1 ℃.
Multi-phase temperature monitoring: the temperature of three-phase winding of dry-type transformer can be monitored at the same time, and three-phase touring display or maximum value display can be realized.

automatic control function

Automatic fan control: automatic control according to set temperature thresholdsCooling FansThe start and stop of the fan. When the winding temperature reaches the fan start temperature, the fan automatically starts to cool; when the temperature drops to the fan shutdown temperature, the fan automatically stops to ensure that the transformer operates within the safe temperature range, and at the same time to avoid unnecessary energy consumption of the fan.
Over-temperature alarm and trip control: when the winding temperature exceeds the set alarm temperature, sound and light alarm signals will be issued to remind the staff to take measures; if the temperature continues to rise to reach the trip temperature, a trip signal will be output to cut off the power supply to prevent the transformer from being damaged due to overheating.

Fault detection and diagnostic functions

Sensor fault detection: real-time monitoring of the sensor's working status, when there is a sensor short circuit, open circuit and other faults, can be issued in a timely manner fault alarm signal, and display the type of fault on the display, to facilitate rapid localization and troubleshooting.
Power failure data protection: with "black box" function, it can record the temperature of three-phase winding and equipment operation status at the moment of power failure, which provides a strong basis for fault analysis.

Communication and Integration Functions

Communication interface: built-in RS-485 or RS-232 and other communication interfaces, support and monitoring system connection, can realize remote data transmission and centralized monitoring, easy to real-time remote monitoring and management of transformer temperature.

Other Functions

Manual control function: on the basis of automatic control, it also has the function of starting and shutting down the fan manually, which is convenient for use in special circumstances or debugging.
Fan Timing Detection: In order to avoid the fan is not started for a long time and rust blocking damage, can set the fan timing detection function, timing start time can be set freely, to ensure the normal operation of the fan.
Digital compensation of display value: When the measured temperature display value is in error due to external reasons such as the accuracy of the sensor, you can enter the setting state of digital compensation of display value to correct the display value.
Ambient temperature monitoring: some models of temperature controllers also added all the way to the machine room ambient temperature measurement and control functions.
Iron core temperature monitoring: some temperature controllers also add a transformer core temperature measurement and alarm function.

Dry-type transformer thermostatHow to choose a manufacturer

Enterprise strength and reputation
Production qualifications and experience: check whether the manufacturer has the relevant production qualifications and certifications, such as ISO9001 quality management system certification, etc., and at the same time to understand its production history and experience in the field of dry-type transformer temperature controllers, like Fujian Fuzhou Yingnuo Electronic Science and Technology Co., Ltd. has been engaged in the development and production of temperature controllers for more than 20 years, it is a professional enterprise.
Enterprise scale and equipment: examine the manufacturer's production scale and production equipment is advanced, larger, advanced equipment manufacturers can usually guarantee the quality and output of the product, such as Fuzhou Yingnuo electronic technology limited company has its own production base, advanced equipment and instruments.
Product Performance and Quality
Measurement accuracy and range: the measurement accuracy of the temperature controller should be in line with the relevant standards, such as JB/T7631-2016 "electronic temperature controller for transformers" industry standard, generally require the measurement accuracy of ± 1 ℃ or higher, the measurement range should cover the actual operating temperature range of the dry-type transformer.
Control function and stability: with perfect control function, such as fan automatic start and stop, over-temperature alarm, over-temperature trip, etc., and control logic is clear, stable and reliable, can ensure that in all kinds of working conditions to accurately execute the control action, to protect the safe operation of the transformer.
Anti-interference ability: due to the dry-type transformer operating environment there may be strong electromagnetic interference, temperature controller should have good anti-interference ability, in line with the relevant electromagnetic compatibility standards, such as GB/T17626-2008 "electromagnetic compatibility test and measurement technology" standard, to ensure that in the complex electromagnetic environment stable work.
Data recording and communication function: with "black box" function, it can record the temperature and equipment status and other information before power failure, which is convenient for fault analysis and diagnosis; meanwhile, it supports communication interfaces such as RS485 or RS232 and so on, which can conveniently realize the data transmission and integration with the host computer or other monitoring systems.

Product Model and Functional Suitability
Basic functions to meet the needs: according to the actual needs of the selection of temperature controller models with the appropriate basic functions, such as three-phase circuit display, the maximum value of the display, fan automatic/manual start and stop, over-temperature alarm, over-temperature trip, fault alarm.
Additional functions on demand: If you need to transmit and monitor the temperature data remotely, you can choose the model with RS485/232 serial communication function; if you need to monitor the ambient temperature of the machine room or the transformer core temperature, you can choose the corresponding model with these additional functions, such as the IB-S201F of Fuzhou Yingnuo Electronic Science and Technology Co. For example, IB-S201F of Fuzhou InnoTech adds RS485/232 serial communication function, IB-S201G adds one way of measuring and controlling ambient temperature of computer room, and IB-S201I adds one way of measuring and alarming iron core temperature of transformer.

Service quality and after-sales support
Pre-sales service: manufacturers should be able to provide professional pre-sales consulting services, to answer user questions about product selection, technical parameters, installation and use, to help users choose the right product.
After-sales service: have a perfect after-sales service system, can respond to the user's after-sales needs in a timely manner, to provide product maintenance, calibration, replacement and other services, to ensure that the user's normal operation of the equipment;
Such as Fuzhou Innotek Electronic Technology Co., Ltd. on the sale of all instruments lifelong maintenance, within 24 hours to respond to customer needs.

Market Word of Mouth and Case Studies
User Evaluation and Feedback: View the evaluation and feedback of other users of the manufacturer's products, to understand the actual use of their products and the quality and reliability of their products.
Successful cases and application experience: examine the manufacturer's successful cases and application experience in the field of dry-type transformer temperature controller, and understand the performance of its products in different industries and application scenarios.

Price and value for money
Reasonable price: Compare the prices of products from different manufacturers and choose products that are reasonably priced and competitive, but be careful to avoid simply pursuing a low price while neglecting product quality and performance.
Cost-effective: Considering the performance, quality, function, service and other factors of the product, choose cost-effective manufacturers and products to get the maximum value for money.