WUHAN FANKE HAIWO HIGH VOLTAGE TECHNOLOGY CO.,LTD. |
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Equipment use relation table during test
Equipment combination test object | 1500kVA/300kV/5A/200H Reactor three sections | Excitation transformer output selection | |
AC withstand voltage test of 500kV and below substation equipment,
etc., the test voltage is 900kV | The capacitance does not exceed 0.03μF | Use three reactors in series | 35kV |
110kV/630mm² cable 2km, test voltage 128kV | 0.376μF | Use three reactors in parallel | 5kV |
220kV/630mm² cable 2km, test voltage 216kV | 0.276μF | Use three reactors in parallel | 10kV |
Compatible with 110kV main transformer neutral point AC withstand
voltage test, test voltage 140kV | 0.025μF | Single section using reactor | 5kV或10kV |
Compatible with 220kV main transformer neutral point AC withstand
voltage test, test voltage 160kV | 0.025μF | Single section using reactor | 5kV或10kV |
Compatible with 110kV voltage level GIS withstand voltage test,
test voltage 270kV | 0.03μF | Single section using reactor | 10kV |
Compatible with 220kV voltage level GIS withstand voltage test,
test voltage 495kV | 0.03μF | Use two strings of reactors | 20kV |
2,Main technical parameters of equipment
System technical indicators
Rated working input power: 380V±10% (three-phase);
50Hz
Rated output power of variable frequency power supply:
400kW
Rated output capacity: 4500kVA
Rated output voltage: 900kV
Output phase number: single phase
Frequency adjustable range: 20Hz~400Hz, when the
frequency is adjusted within the set range, the voltage is constant
output
Output frequency resolution: 0.01Hz
Output frequency instability: ≤0.05%
The output voltage waveform is a sine wave: waveform
distortion rate ≤1.0%
Running time: 60min continuous running under rated
capacity
Insulation level: withstand voltage for 1 min under
1.1 times the rated voltage
Quality factor: Q>60 (f=30Hz)
Variable frequency power supply capacity: 400kW
(push-pull linear amplifier)
3,Main functions of the system:
1) The variable frequency power supply adopts a linear
power amplifier circuit, which has a perfect sine wave output and
low waveform distortion
2) With automatic voltage stabilization adjustment
function
3) Safe and reliable. A variety of protections are
integrated in this device, including: discharge breakdown
protection, over-voltage, over-current setting protection, output
short-circuit protection, boot zero protection, bridge arm
amplifier circuit protection, power curve protection, etc. When any
kind of protection appears, the device immediately blocks the test
voltage output and cuts off the main circuit power supply to ensure
the safety of the test personnel, the tested product and the test
system
4) The high-voltage measurement signal is transmitted
by optical fiber to completely isolate the high-voltage and
low-voltage circuits
5) Two control modes: automatic/manual
6) 320*240 dot liquid crystal display and multiple
rotating mice provide a friendly man-machine interface, easy and
quick operation and wiring, and truly "just look at it"
7) Synchronous voltage, current and frequency display
8) The output frequency is continuously adjustable
within the range of 20-300Hz
9) The output voltage is continuously adjustable
within the range of 0~350V
10) With resonance withstand voltage test function
11) With automatic resonant frequency search function,
multiple automatic frequency sweeping frequency bands can be set
4,System display function:
1) With a large screen display, it can indicate:
output voltage, output current, frequency, ambient temperature,
outlet air temperature, variable frequency power supply output
voltage waveform, date and time, countdown time, fault information,
etc.;
2) It has the function of setting test parameters such
as test voltage and time;
5,Other features of the product:
1) The oil-filled equipment in the device does not
leak oil.
2) All metal shells in the device are rust-proof and
anti-corrosion treatment, and the coating is uniform and beautiful.
The main components have stainless steel nameplates and terminal
signs.
3) The device can be stored, assembled and
disassembled indoors and outdoors; the protection function is
complete. The manufacturer guarantees that the control equipment,
transformers, reactors, etc. of the device are at 1.1 times the
rated voltage, and if the high-voltage side sample flashovers to
the ground during the test, it will not cause personal injury and
the test equipment will not cause harmful mechanical and thermal
stress. Electrical performance is damaged or damaged.
4) Each part of the equipment has a nameplate that
conforms to the national standard, the words and symbols are clear
and durable, and the nameplate is clearly visible when the
equipment is in normal operation.