The refrigeration heating temperature control system can be tested for different projects during operation. The detection of different projects is different. Among them, the refrigeration heating temperature control system for fuel oil testing is used to make fuel and oil for Party A test bench. When the fuel or oil in the test is cooled or warmed up.
The refrigeration heating temperature control system for fuel oil testing uses a heat-conducting oil refrigeration heating device to provide low-temperature or high-temperature heat-conducting oil. The heat-conducting oil and the fuel oil exchange heat in the inlet heat exchanger of the test piece, so that the fuel can reach the desired temperature condition. The secondary heat exchange completely solves the problem of temperature resistance of the high-pressure pump for fuel and oil delivery, and also solves the problem of carbonization and coking of the fuel caused by the excessive surface temperature of the heater.
Before the operation of the refrigerant heating test temperature control system, check the potentiometer. First, turn the handle to see if the rotation of the handle is smooth, whether the switch is flexible, and whether the “click” sound is clear when the switch is turned on or off. Listen to the sound of the internal contact point of the potentiometer and the friction of the resistor body. If there is a "sand" sound, the quality is not good. When testing with a multimeter, first select the appropriate electrical blocking position of the multimeter according to the resistance of the potentiometer to be tested, and then perform the detection as follows.
You can check for obvious anomalies by observing the appearance of the transformer. If the coil lead is broken, de-soldering, whether the insulating material has burnt marks, whether the iron-tightening screw is loose, whether the silicon steel sheet is rusted, whether the winding coil is exposed or the like.
Fuel oil oil test refrigeration heating temperature control system power transformer short-circuit fault comprehensive detection and judgment: the main symptoms of the power transformer after a short-circuit fault is severe heat and secondary winding output voltage is abnormal. Generally, the more short-circuit points between turns in the coil, the greater the short-circuit current, and the more severe the transformer heats up. A simple way to detect if a power transformer has a short-circuit fault is to measure the no-load current (tested earlier in the test method). A transformer with a short-circuit fault will have a no-load current value that is much greater than 10% of the full-load current. When the short circuit is severe, the transformer will heat up quickly within a few tens of seconds after the no-load power-on, and the iron core will feel hot when touched by the hand. At this time, it is not necessary to measure the no-load current to conclude that the transformer has a short-circuit point.
The performance and testing of the refrigeration heating temperature control system for fuel oil testing must be clearly understood. If necessary, please contact the manufacturer of the cooling and temperature control system for fuel oil testing - Wuxi Guanya. (This article source network, if there is infringement, please contact delete, thank you.)