The working principle of dry-type transformer thermostats
The dry-type transformer temperature controller is a new generation of controller designed for the safe operation of dry-type transformers. The controller adopts single-chip microcomputer technology, and uses three platinum thermal resistors embedded in the three-phase winding of the dry-type transformer to detect and display the temperature rise of the transformer winding, and has the corresponding alarm and control functions to ensure that the transformer runs in a safe state.
The dry-type transformer temperature controller adopts a high-performance PT100 sensor, which is a control device to ensure the safe operation of the dry-type transformer. The instrument has a new design, compact structure, firm structure, eye-catching display, intuitive, and has more complete system protection, parameter saving and output indication functions.
The main functions of dry-type transformer thermostat are:
1. The circuit display of the three-phase winding temperature or the tracking display of the high-temperature phase winding (can be switched at will). Any way above the preset temperature point starts the fan.
2. Realize automatic control or manual control of the start and stop of the cooling fan (can be switched at will).
3. Display, output and remote transmission of fan start-stop, over-temperature alarm and over-temperature trip signal.
4. Sensor open circuit, short circuit and exceeding the measurement range prompt; Fan disconnection alarm and output.
5. Three-phase temperature correction.
Application range of dry-type transformer thermostats
The application of transformer thermostat is very wide, as long as it is a dry-type transformer, it can be used, and there are many transformer models that can be used in dry-type transformer thermostats.
The main types of dry-type transformers are:
(1) According to voltage level: 1000KV, 750KV, 500KV, 330KV, 220KV, 110KV, 66KV, 35KV, 20KV, 10KV, 6KV, 0.66KV, 0.38KV, 0.22KV, etc.;
(2) According to the insulation and heat dissipation medium: dry-type transformer, oil-immersed transformer, of which dry-type transformer is divided into: SCB epoxy resin cast dry-type transformer and SGB10 non-encapsulated H-class insulated dry-type transformer;
(3) According to the core layout material: silicon steel laminated transformer, silicon steel coil core transformer, amorphous alloy core transformer;
(4) According to the envisaged energy-saving sequence: SG, SJ, S7, S9, S11, S13, S15;
(5) According to the number of phases: single-phase transformer, three-phase transformer;
(6) According to the capacity, the rated capacity of dry-type transformers in China is: 3KVA, 5KVA, 10KVA, 15KVA, 20KVA, 25KVA, 30KVA, 40KVA, 50KVA, 80KVA, 100KVA, 125KVA, 160KVA, 200KVA, 250KVA, 315KVA, 400KVA, 500KVA, 630KVA, 800KVA, 1000KVA, 1250KVA, 1600KVA, 2000KVA, 2500KVA, 3150KVA, 4000KVA, 5000KVA, etc.
How to choose a dry-type transformer temperature controller?
1. The brand of dry-type transformer thermostat
Now there are many thermostat brands on the market, to find a thermostat manufacturer that can be independently developed and has a scale is not necessarily so easy to find, it is recommended that you can go to Baidu to search for relevant information and click into the company's website to understand the purchase.
2. The quality of the dry-type transformer thermostat
The quality of the dry-type transformer thermostat must be guaranteed, because the thermostat is related to the life of the transformer in real time, and the transformer thermostat is an important accessory of the transformer, so it must be guaranteed, including the accuracy of the thermostat and the temperature response speed and the function of the thermostat.
3. After-sales service of dry-type transformer thermostat
The after-sales service of dry-type transformer thermostat is a bridge between manufacturers and customers, so when the thermostat fails, it is necessary to be able to find someone and provide corresponding solutions to solve the problem.
3. The price of dry-type transformer thermostat
What everyone is more concerned about is the price, the price can not blindly seek low price, and the cost-effective thermostat is the best.
|
More on that
|
Specifications and models of RKC thermostats
CH102 (48×48×100mm)
CH402 (48×96×100mm)
CH902 (96×96×100mm)
1. RH400 size: 48*96, depth 60, about 250g
1. Thermocouples: K, J, R, S, B, E, N, T, W5RE/W6RE, PL‖, U, L
...
|
|
Introduction to the functions of the RKC temperature control meter
(1) RH400 size: 48*96, depth 60, about 250g
Details:
●A variety of input types are available:
1) Thermocouples: K, J, R, S, B, E, N, T, W5RE/W6RE, PL‖, U, L
2) Temperature measurement RTD input: PT100, JPT100...
|
|
RLC thermostats – a common failure of mechanical thermostats
1. The terminal post of the thermostat is stuck and falls off
Cause the compressor not to start, the thermostat dynamic and static contacts can not be disconnected, so that the compressor does not run, the thermostat contacts can not be disconnected, so that the motor of the refrigerator compressor does not stop, in addition to the balance elastic force is too weak, it can also be ...
|
|
rkc thermostat – five advantages of thermostat over PLC
Programmable logic controllers (PLCs) and temperature controllers (thermostats) offer similar benefits in ensuring effective process control, achieving consistent quality, and minimizing user error in manufacturing.
Since the 17th century, process control equipment has been used in a variety of forms.
|
|
Features and technical specifications of RKG thermostats
peculiarity
1. Thermocouple, RTD, analog and other signals are freely input, and the range can be set freely.
2. The software adjusts the full degree, the cold end measures the temperature separately, the amplifier is self-stabilizing, and the display accuracy is better than 0.5%FS.
3. Fuzzy theory combined with traditional PID method, fast control ...
|
|
RKC converter – the control strategy of the converter
Direct transformation method
The direct conversion method is to synthesize the "output voltage" through the continuous chopping of the input voltage, which can be divided into coordinate transformation method, harmonic injection method, equivalent conductivity method and scalar method, although all these methods have certain advantages, but also have certain problems, ...
|
|
For some considerations in the RKG thermostat setup
RKC Thermostat Operation Note:
1. Clean the instrument only after the power is off;
2. To remove the stains on the monitor, please use a soft cloth or cotton paper;
3. The display is easy to be scratched, and it is forbidden to use hard objects to operate the panel buttons, otherwise the buttons will be damaged or scratched.
RLC thermostat ...
|
|
RKC converters – what are the functions of converters?
1. Power conversion: convert the voltage (rated 100V) and current (rated 5A or 1A) of the transformer into voltage (several volts) to meet the requirements of weak current components.
2. Isolation: current, secondary side security, and work grounding are used to ensure the safety of people and equipment, while weak current ...
|
|
RHK thermostat - the use of electronic thermostat and its classification introduction
First, the use of electronic temperature controller
The electronic temperature controller (resistive type) is measured by the method of resistance temperature sensing, and generally uses platinum wire, copper wire, tungsten wire and semiconductor (thermistor, etc.) as the temperature measurement resistor, and these resistors have their own advantages and points. Home Air Conditioner ...
|
|
RKC level gauge - the fault and treatment method of float level gauge
Fault 1, the indication is abnormal
The float level gauge is not indicated properly and is a very common fault of the float level gauge. Usually there are the following manifestations:
Phenomenon 1: The float level gauge in the atmospheric pressure workshop has the largest indication.
Troubleshooting: The float was found to be ...
|
|
RKC Thermostats – How to Choose a Thermocouple?
The selection of thermocouples should be based on comprehensive considerations such as the operating temperature range, the required accuracy, the operating atmosphere, the performance of the measured object, the response time and the economic benefits.
1. Selection of measurement accuracy and temperature measurement range
1) The operating temperature is 1300-1800°C, and the accuracy is required to be more accurate than ...
|
|
Steps for the correct adjustment of the thermostat
1. First of all, determine the set temperature of the thermostat and make sure that it is the same as the temperature you need.
2. Recognize the operating form of the thermostat, usually there are two forms of cooling and heating, and choose the corresponding form according to the demand.
3. Acknowledging the operating condition of the thermostat, usually with active ...
|
|
RKC Thermostat Usage Warning
· Wiring warning:
- If the instrument fails or an error occurs, which can cause a system failure, install external protection circuits to prevent such accidents;
- To prevent damage or failure of the instrument, use appropriate fuses to protect the power cord and input/output cord from strong power shocks.
...
|
|
RKC thermostat REX-C400 model settings and parameter instructions
Japan RIKA RKC REX-C400 temperature controller product introduction
REX-C400 Digital Thermostat RKC PID Temperature Controller Thermostat (SSR Output) + Type K Thermocouple + *Large 40A SSR Relay
1. Dual display set temperature and process temperature
2. General Digital Programmable Temperature ...
|
|
Overview of the RLC thermostat
CH and CD series intelligent temperature controller is a multi-functional adjustment instrument with special microprocessing, which adopts switching power supply and surface mount technology (SMT), so the instrument is delicate and compact, and the performance is reliable. The unique self-diagnosis function, self-tuning function and intelligent control function make it possible for the operator to pass the ...
|
|
Common faults and solutions of intelligent temperature controllers - RTC
Master the common problems of several common intelligent temperature controllers, and solve them by yourself when you encounter problems, and you don't need to spend time and effort to find someone to repair, the common problems are as follows:
1. Heating for a period of time, the temperature does not change. Ambient temperature (e.g., room temperature 25°C) is displayed at all times
...
|
|
How to set the parameters of the RKC rs400 thermostat?
1. Set temperature: Press the SET button to set or check the temperature set point. Press the SET key digital tube character start flashing, indicating that the appearance has entered the setting state, press the △ key to increase the set value, press the ▽ key to decrease the set value, press and hold the △ key or ▽ key data will change rapidly, press the SET key again ...
|
|
RKC thermostat - introduction of the three output modes of the thermostat
The first output method is relay output, which is output for temperature control through the switching signal of the relay on/off, which is used to directly control the load less than 5A, or directly control the contactor and the intermediate relay, and control the high-power load externally through the contactor.
The second ...
|
|
Technical characteristics of the RKC thermostat
The core control algorithm of the thermostat is PID control, P (Proportional) + I (Integral) integral + D (Differential) differential control. In addition to the traditional PID control algorithm, RKC also has ON-OFF control, self-tuning parameter control, adaptive parameter control and other algorithms, temperature control ...
|
|
RRKC Thermostat – The working principle and main features of the pop-up thermostat
How it works
The sudden jump thermostat is a kind of bimetal disc after constant temperature as a heat-sensitive reaction component, when the temperature of the main part of the product increases or decreases, the heat generated is transferred to the bimetal disc, and when the operating temperature is set, it acts quickly, and the contact is broken through the action of the mechanism.
|
|
Contact
working hours
