TOPUKE automatic variable ratio group tester
Summarize：
In the process of semi-finished and finished production of power transformers, before the newly installed transformer is put into operation and according to the preventive test procedures of the Ministry of Electric Power, it is required to regularly test the turn ratio or voltage ratio of the transformer in operation. The traditional variable ratio bridge is complicated, the reading is not intuitive, and the necessary conversion must be carried out, and the test result is only one phase transition ratio data. The automatic variable ratio group tester overcomes the shortcomings of the traditional variable ratio bridge test. The screen uses one time to complete the three phase change ratio test, the test speed is fast and the accuracy is high.
Safety precautions：
1．Be sure to read this manual carefully before using this instrument.
2．The operator of the instrument should have general knowledge of the use of electrical equipment or instruments.
3．The yellow, green and red of the test wire clip correspond to the transformer respectivelyA、B、C，don't misconnect.
4．Do not connect high and low voltage cables inversely.
5．The instrument should avoid violent vibration.
6．The maintenance, care and adjustment of the instrument should be carried out by professionals.
7．Seven. This instrument can be used indoors and outdoors, but should avoid rain, corrosive gas, dust too thick, high temperature, direct sunlight use.
8． When measuring a single-phase transformer, only use yellow and green wire clips, do not use the wrong test clips, and the unused test clips should be suspended.
Performance feature：
1．Wide test range, up to5000。
2．Fast test speed, 7 seconds to complete the three-phase test.
3．Z type coupling transformer test.
4．It has the function of blind test ratio and group test.
5．Power-free clock and date display, data storage function.
6．Protection function of high and low voltage reverse connection.
7． Transformer short circuit, turn short circuit protection function.
8．Thermal printer output function, fast, silent.
9．Small size and light weight.
Technical index：
1．Range：0.9～5000
2．Resolution: Minimum0.0001
3．Accuracy：0.1%±2words（500 below）
0.2%±2words（500~2000）
0.3%±2words（more than2000）
4．Output voltage：160V、10V Automatic gear change
5．Working power supply：AC220V±10% 50HZ
6．Operating temperature：–20℃～40℃
7．Relative humidity：≤85％，no condensation
System Description：
1．Printer: Can print test results.
2．Display screen：240×64 dot matrix LCD, with LED backlight, display operation menu and test results.
3．Function keys: On the right side of the display, there are F1, F2, F3 three function keys, corresponding to the function displayed on the left, press the corresponding key to perform the corresponding function.
4．Reset key: Press this key to reset the system back to the initial state.
5．High voltage output: The high voltage terminal block is connected to the red cable, one end of the cable plug is inserted into the jack and turned to the right to tighten, and the other end of the cable is loosened by turning to the left. The other end of the cable is provided with yellow, green and red 3 color clamp. The three phases of
6．Low voltage input: The low voltage connector is connected to the black cable, one end of the cable plug is inserted into the jack and turned right to tighten, and the other end of the cable is loosened by turning left. The other end of the cable is provided with yellow, green and red 3 color clamp. The three phases of a,
7．
：保护接地柱。
8．Power socket: The power input port of the whole machine, connected to 220V, 50Hz power supply, the socket with safety and switch.