2500A full automatic current generator full automatic temperature rise special high current generator adopts low power, large capacity voltage regulator and high magnetic flux core converter, which has the advantages of large output power, small volume, light weight and so on. It is mainly used in high voltage switchgear cabinet, low voltage switchgear (JP cabinet), busbar slot, current transformer temperature rise, isolation switch temperature rise, temperature rise experiment of electric power fittings, temperature rise experiment of copper clad steel, and temperature rise experiment of other new materials!

New features

1, the switch and voltage regulator input from the power supply to the voltage regulator output to the input switch of the upcurrent, that is, the front stage and the rear grade; corresponding to the post grade, the front grade; the emergency stop; the mutual locking (the front stage is incompatible, the post level not up; the post level is not divided, the former level can not be divided!).

2. It has zero position locking function of voltage regulator.

3, transformer two open circuit overvoltage protection, can avoid signal line kick off, resulting in current transformer two open circuit to generate high voltage.

4. The upflow body is centered on open holes and high current output, and can be directly worn through various conductors to facilitate any experiment and raw flow test.

5. The special structure can effectively control the vortex heating problem of the upflow body bracket and shell metal.

6, 4 lifting rings are arranged on the upper surface of the upflow body shell, which is convenient for lifting, and wheels are arranged at the bottom to facilitate movement.

7, the wireless control part, including the front stage, the post grade, the upflow, the downflow, the post grade, the emergency stop button, and the locking requirements of the control cabinet (the front level is not fit, the post level is not up, the post level is not divided, the front grade can not be divided!). All control systems can be implemented on the remote control; the wireless control part is embedded in the integrated voltage and current console to display intuition.

8. The wireless control power supply is powered by No. 5 battery, which is convenient and quick to replace.

9, with the current source waveform monitoring Q9 head, easy to monitor the large current output waveform (can add oscilloscopes);

10, the instrument selected 160*80 large digital tube display, convenient for remote (10m) wireless control remote view, can monitor the power voltage and current simultaneously, voltage and current output of voltage regulator, output voltage and current of the upcurrent;

11, with the function of power break protection, during the upflow test, if the power is suddenly lost, the voltage of the voltage regulator is automatically reset to zero position (with zero position indication) after the power switch is repeated again (after the manual switching air switch on the control cabinet panel), and then the operation of the front stage, post stage, upflow and downflow can be carried out, and the belt is strictly avoided. Blow up the power of the superior power;

12, mode of work, series of hearts

The large current generator for temperature rise uses low power, large capacity column type voltage regulation and high magnetic flux core converter, which has the advantages of large output power, small volume, light weight and so on. It is mainly used for thermal relays, motor protectors, contactors, breakers, air switches, switchgear, circuit breakers, and protection screens.

2.1 input voltage: AC380V + 10%

2.2 power: 100KVA

2.3 output current: AC0 to 2500A stepless adjustable, panel with digital current meter voltmeter.

2.4 output mode: direct

2.5 output waveform: output current is standard sine wave, burr tiny, better than power system requirement index standard, ripple coefficient less than 0.3%. Standard sine wave.

2.6 measurement accuracy: (using 0.2S grade material); the current can be smooth and continuous adjustable, the precision is higher than level 0.5. The current voltmeter shows the true effective value, high precision and high stability.

2.7 output current mode: True RMS can be adjusted continuously.

2.8 structural form: one or a body

2.9 protection settings: overcurrent, overvoltage (primary plus overcurrent protection)

2.10:2. action time test: 0.001~99999.999S

1 full automatic control current increase, decrease

2, 64 temperature inspection can be customized according to the requirements of the temperature range of the tested tester.

1) temperature range: -100 ~ 1000 C; (sensor temperature range: -50-300 C).

2) measurement accuracy: 0~1000 C: + (reading value x 0.5%+1) C,

-100 ~ 0 C: + (read value * 0.5%+2) C;

3) it has the function of resisting high frequency interference.

4) the number of temperature signal input channels: up to 8 groups, with 8 channels per group;

5) sensor: Ni Cr Ni Si (K) thermocouple (type T, J type can be specially made).

3, storage can easily edit and print OFFICE files in two ways through RS232 and U disk.

4, can produce one type or split type equipment according to the requirement

According to customer needs:

1, automatic and manual operation.

2. The current, voltage, transformer and the temperature of the tested parts in the test process are displayed in the form of tables and curves, and can be transferred to other computers for further analysis and archiving. The data is based on Excel spreadsheet format to facilitate conversion between charts, curves and data. The text is in word format.

3. Set the test current according to the need. The test current is stable and reliable, and is not affected by the system or external factors.

4. The allowable temperature of the specimen can be set according to the needs. The system automatically adjusts the given maximum current, and displays and records the maximum working current at this time when the set temperature is reached, that is, the maximum working current at the maximum allowable temperature (or the maximum working current under the set temperature).

5. It has the lowest current and temperature and the highest value of the transformer and the specimen. It has the function of exceeding the limit value automatic alarm. It has reliable self protection function of overheat, overcurrent, overvoltage and short circuit.

6. The test number, test current, interval time, upflow rate and maximum current duration at the allowable temperature are set for the same test.  After the test is started, the device is automatically completed by the device. The cycle test can be!

7, before the test, all parameters can be set at once on the touch screen, so as to make the operation simple and clear.

8, when encountering overcurrent, overvoltage, short circuit, over temperature and loss of pressure, it has necessary protection and audible and visual alarm signals. There is no need to immediately produce destructive alarm factors for the test device. Sound and light alarms can be issued, and the operator is informed of the alarm.

Five. Operation description

1) page description

1), enter the system

2), the main menu

3), automatic test interface (automatically adjust the current according to the set value, and automatically track the output current infinitely close to the set value. From the press

Start the timer, stop the output after setting the output time, or check the external temperature beyond the set temperature to stop the output.

4), parameter setting

5) manual test (positive current control with no current tracking function).  It is mainly used to do the action time of over current relay.

2) set current output

Under the automatic mode, the current size is set according to the required current setting value, and the output time is set, and the current output value will be adjusted automatically after setting up the voltage regulator.

3) output time

The output time of the high current is set according to the experimental requirements. When the time is up, the instrument automatically stops the current output.

4) over current protection

According to the magnitude of the time triggered current, the current protection value is set, and the current value of the time triggered current value is 1.1 times that of the current protection. After the over current protection, the instrument alerts the alarm.

3. zero bit start

In order to protect the tested products, the upflow device should start rising from "0A". When the voltage regulator is in zero position, press the "start" button, the contactor is closed, the instrument has output, and when the voltage regulator is in non zero position, the instrument can not be closed or output according to the "closing" button.

4. current circuit principle

5, add temperature control: set the temperature to be tested point to reach the temperature, stop the output automatically, with thermocouple and thermal resistance.