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Technical features
1. It is the most ideal and reliable product in the new century because it is smaller in size, lighter in weight, more beautiful, more reliable, simpler in operation, full-featured, and easy to use in the field.
2. Adopting advanced technology and process manufacturing, taking the lead in applying the latest PUM intelligent pulse width modulation technology and pulse string logic array modulation
System, the use of high-power IGBT devices, the use of smart technology to increase the intelligence rate, frequency up to 40kHz, so that the output high-pressure stability is higher, the ripple coefficient is smaller.
3. Adopt computer control technology to display output DC high voltage, current, overvoltage setting, timing, grounding and various protection information on the large screen LCD display.
4.Initial smart ground fault protection and alarm function (poor grounding can not be boosted), pressure measuring circuit breakage protection (high-voltage measuring circuit can not boost the pressure of the instrument), emergency stop button, greatly improving the safety of the operator in the operation process Sex. Under special circumstances, the ground fault protection alarm function can also be released (such as when the generator is used as the power source or the site is badly grounded but can still be tested.) High accuracy and accurate measurement. Both voltage and current meters are digital display. The voltage resolution is 0.1kV and the current resolution is 0.1uA. The voltage meter on the control box directly displays the voltage value added to the load test sample. No voltage divider is needed when using, and the wiring is simple. The instrument has high and low voltage side to measure leakage current, and the high voltage end adopts round shield digital meter display. It is not afraid of discharge shock and has good anti-interference performance. It is suitable for field use.
5. High voltage regulation stability, full range smooth voltage regulation, output voltage regulation adopts imported single multi-turn potentiometer, stable step-up process, high adjustment accuracy, and a coarse and fine adjustment function. The voltage regulation accuracy is better than 0.1%, the voltage and current measurement error is less than 1.0%, and the ripple factor is better than 0.5%.
6. The addition of a high-precision 75% VDC-1mA function makes it extremely convenient for the measurement of zinc oxide surge arresters. A simple press does not require calculation. The instrument control box has 75% voltage function keys. When doing the arrester test, when the current rises to 1000uA, it will open the 0.75 button. At this time, the value displayed by the voltmeter and ammeter is 75% of the data. Immediately after the boost knob is returned to the zero position, the fine voltage regulator will be returned to the zero position. Immediately press the green button to cut off the high voltage and turn off the power switch. Do other tests.
7. Double pressure tube can be divided into sections, on-site use, flexible and convenient, more than one machine, economic benefits.
8. The double pressure cylinder is developed with German technology; the intermediate frequency transformer is specially designed by the relevant experts, with small volume and large capacity. Double pressure cylinder base contains â–³-Y legs, that is, Y-shaped when used, the support is stable and convenient. When packing, it shrinks into a delta shape and is hidden in the base.
DC high voltage generator performance characteristics:
Digital display output voltage and current;
Can be switched to 75% voltage output at any time;
With overvoltage and overcurrent protection settings, and can display the set voltage and current value;
Smooth adjustment of the output voltage over the full range
Perfect protection function to ensure that the potentiometer must be adjusted to zero before each boost;
Discharge with discharge rod does not affect the size of the output voltage;
With output voltage timing function;
With over-voltage over-current protection sound and light alarm function;
Can work 30min at full load.
DC high voltage generator technical parameters:
Working power: voltage 220V±22V
Frequency: 50Hz or 60Hz;
Display accuracy: ±1%;
Ripple coefficient: ≤ 1%;
Working methods: intermittent use, no more than 30 minutes each time;
Technical indicators
3.1, output voltage polarity: negative polarity
3.2, working power: AC220V ± 10%, 50HZ
3.3, voltage measurement error: full 2% ± 1d, the highest resolution 0.1KV
3.4, current measurement error: full 1% ± 1d, the highest resolution 0.1UA
3.5, the ripple coefficient is better than 1%
3.6, voltage stability: ≤ 0.5% when randomly fluctuating power grid changes by ±10%
3.7, working methods: intermittent work, rated voltage, current working time is not less than 30min
3.8, ambient temperature: -10 °C ~ 50 °C
3.9, relative humidity: ≤85% (25°C)
3.10, altitude: 2000 meters
At the time of acceptance
4.1 The technical data should be complete, including instructions, certificates, test reports, maintenance records, etc.
4.2. The nameplate identification should be obvious and firm. The content includes the name of the instrument, manufacturer, model, number, accuracy, measurement range, date of manufacture, etc.
4.3, the DC high voltage generator control box and high voltage parts must have clearly marked grounding terminals
4.4, the output voltage of the DC high voltage generator should be able to step up from zero, continuously and smoothly adjustable, the fineness of the output voltage should be better than 0.1% of the rated voltage. Output voltage of the DC high voltage generator should have zero Locking function to prevent suddenly when the adjustment knob is no longer zero
maintenance
1. Replace the hydraulic oil and clean the oil tank half a year. The recommended oil type must be used.
2. When the weather is hot, always check (when the oil temperature is ≥ 45 degrees) whether the cooling device starts automatically. (Cooling water temperature must be less than 30 degrees)
3. Clean the air filter while cleaning the tank;
4. Regularly check the oil filter signal light of the DC high-voltage generator, the signal light will be on (simultaneously the buzzer will sound), and immediately clean the oil filter;
5. According to the regulations, the lubrication points of the machinery transmission part of the equipment need to be filled with oil;
6. Observe the liquid condition frequently. When the liquid level is close to the lower limit, please add the recommended hydraulic oil to the tank.
7. Regularly inspect the dustproof devices in various places and find that they are damaged or the connections are loose. They should be treated in time to prevent dust from mixing in and damage the equipment.