Features:
1. Perfect system comprehensive protection function. Boot system self-test, found that poor grounding, voltage divider no signal and other faults can not be closed to prevent damage caused by misoperation. With over current, over voltage, sample flashover discharge, power failure, connection error and other protective measures, the protection function is displayed in Chinese on the large screen.
2. Overcurrent protection - built-in multiple automatic overcurrent protection, when the output current of the inverter power exceeds the rated value of 1.1 times the protection setting value, automatically cut off the entire device output. When the output current of the inverter power supply exceeds the set value, the output is automatically cut off.
3. Overvoltage protection - built-in multiple automatic overvoltage protection, can manually set the test voltage value, when the test voltage exceeds the setting value of 1.1 times, through the hardware and software real-time judgment, quickly cut off the entire device output, effectively ensure the safety of inverter power supply and operators. The sampling value of the current sensor is calculated by DSP. When the current value exceeds 1.1 times of the theoretical value, the output is quickly cut off to prevent the voltage divider or the ratio of the voltage divider is set incorrectly, which leads to the overvoltage of the test product.
4. Sample flashover discharge protection - with sample discharge or flashover protection function, when there is a high-voltage discharge flashover in the test or boost voltage, automatically cut the whole device, and will not cause harm to the test equipment and personal injury, the internal electronic components of the inverter power supply will not damage the breakdown.
5. Power failure protection - with power failure protection function, a special protection function module is installed in the output end of the frequency conversion control power supply. When the input power suddenly fails during the test or boost process, the resonant feedback to the host energy is absorbed, and the output is quickly short-circuited, so that the energy of the resonant system is rapidly consumed; After the power supply is suddenly disconnected, the special function module can still work for more than 10s to ensure the completion of the energy consumption process. Automatic cutting of the entire device, and will not cause damage to the test equipment and personal injury, frequency conversion power supply internal electronic components will not damage breakdown.
6. Connection error protection - protection when the test line is incorrectly connected or disconnected. (such as frequency conversion control power supply, excitation transformer, resonant reactor, capacitor voltage divider and other connection lines).
7. Overheat protection - power device temperature ≥80℃ protection
8.Emergency brake protection - Press the emergency stop button on the inverter control power panel to cut off the output.
Parameter:
1, excitation transformer 6kVA/1kV/0.4kV 1
Rated capacity: 6kVA;
Input voltage: 0-400V, single phase;
Output voltage: 1kV
Structure: dry type;
Weight: about 40kg;
2, frequency conversion power supply 6kW/220/380V 1
Rated output capacity: 6kW
Working power supply: 220/380±10%V(single/three-phase), power frequency
Output voltage: 0-400V, single phase,
Rated input current: 15A
Rated output current: 15A
Voltage resolution: 0.01kV
Voltage measurement accuracy: 0.5%
Frequency adjustment range: 30-300Hz
Frequency adjustment resolution: ≤0.1Hz
Frequency stability: 0.1%
During operation: continuous 5min at rated capacity
Maximum component temperature ≤65K after continuous operation for 5 minutes at rated capacity;
Noise level: ≤50dB
1) The frequency conversion power supply is placed vertically and horizontally, especially suitable for field operation and observation;
2) The interior and exterior are equipped with special shock-absorbing rubber support feet and protective aluminum boxes, which can effectively slow down the bumpy vibration during transportation and the impact during hoisting. To ensure the long-term stability and reliability of the inverter power supply;
3) Parameter display: Touch or external mouse large screen LCD interface display system can display resonance voltage (that is, the target voltage set before the test), test frequency, measurement frequency, low voltage, low voltage current, voltage withstand time, overvoltage protection, overcurrent protection, flashover protection, stage boost and stage timing, operation mode switching, capacitance, inductance, The frequency exchange calculation, parameter query, etc., can also display the frequency curve, voltage curve, etc., can intuitively judge the accuracy and stability of the resonant frequency of the test;
4) Parameter setting: Large screen touch LCD color screen and external mouse can directly complete the setting of various parameters, starting frequency, ending frequency, starting voltage, stage boost and timing, measuring voltage divider ratio, excitation ratio, overvoltage protection, overcurrent protection, flashover protection, test mode, capacitor and inductance frequency exchange calculation, parameter setting tips and help and other parameters can be set or selected.
5) Test mode: touch screen and external mouse operation, automatic, semi-automatic, manual three operating states. With boost voltage, tuning (including manual, automatic), segmented pressure and timing, operating status, mode switching, fault warning, capacitance and inductance frequency exchange calculation function;
6) Protection functions and information tips: with high voltage overvoltage protection, low voltage overcurrent protection, overcurrent protection, and mismatch protection, zero, flashover protection, emergency shutdown, undervoltage protection and other multiple protection functions;
7) Data storage function: save test results (manually save), print, upload, check back, etc
① Test result: After the manual or automatic test is completed, the detailed parameters of the test can be displayed in the test result interface. When the test is interrupted, the interrupted state can be prompted. The parameters can be stored in the memory, the memory is non-volatile memory, can store 50 test records;
② Data query: the saved test result data can be displayed on the screen, and with a USB interface, the data can be printed out or printed by the printer carried by the device; (The printer is selected by the customer, if the customer has this demand, it must be specifically stated in the contract)
8) Automatic voltage regulation function: the system automatically tracks and maintains a stable test voltage according to the set test voltage or the manual boost result, and the voltage stability can reach 1.0%;
9) The frequency range and frequency resolution can be set: the frequency range can be set to 30 ~ 300Hz, 45 ~ 100Hz, 200-300Hz, on demand, can speed up the tuning process; The frequency resolution can be preset to 0.1Hz, 0.2Hz, 0.5Hz, or 1.0Hz, as required, to achieve an optimal balance between tuning efficiency and tuning accuracy;
10) Frequency adjustment is divided into coarse and fine adjustment, and can automatically find the test resonance point to ensure that the resonant frequency does not drift during the test;
P) Weight: about 12kg;
3, high voltage reactor 44kVA/22kV 3 sections
Rated capacity: 44kVA;
Rated voltage: 22kV;
Rated current: 2A;
Electrical sensitivity: 55H/ single section;
Quality factor: Q≥30 (f=45Hz);
Structure: dry type;
Weight: about 40kg;
4, capacitive voltage divider 30kV/1800pF 1 set
Rated voltage: 30kV;
High voltage capacity: 1800pF
Dielectric loss: tgσ≤0.5%;
Partial pressure ratio: 1000:1
Measurement accuracy: 1.5 effective value;
