I. Introduction With the development of power system, the capacity of the power operating equipment becomes larger and larger, and the voltage level of the transmission is higher and higher. So the requirement of the test equipment for the running equipment increases. Such as the use of...
Product Details
I. Introduction
With the development of power system, the capacity of the power operating equipment becomes larger and larger, and the voltage level of the transmission is higher and higher. So the requirement of the test equipment for the running equipment increases. Such as the use of conventional high-voltage test equipment, test equipment and capacity required for testing power supply equipped with the capacity of up to a few thousand KVA, due to test equipment for large capacity, field test, heavy equipment for handling; and because the test power supply capacity, and it is not convenient to find the appropriate power at the scene.
In order to meet the needs of large capacity and high voltage (ultra high voltage) to test electrical equipment, the booster device using a series resonant principle, with adjustable reactor and test equipment (capacitive) or the capacitance compensation capacitor to form a resonant matching. Thus, the test power supply only takes the active component, which is only 1/Q times of the required capacity of the test, and the capacity and weight of the test equipment are greatly reduced. It is an ideal high voltage source.
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III.Main Functions
(1)Automatic step-down functionwhen the withstand voltage time is reaching :
Digital timer is used for withstand timing and when reach to withstanf voltage time, the system will automatically step-down
(2) Zero turn on and zero boost:
Zero limit function, if the voltage regulator is not zero, the high voltage output button can not close, and ensure that the system is from zero to step up.
(3) Over current protection function:
The system is equipped with electromagnetic overcurrent relay, this relay anti-interference ability, quick action, to avoid test products not flow damage.
(4) Over-voltage and the flashover protection function
The utility model is provided with an electronic overvoltage flashover protective plate to avoid the damage of the test product not subjected to pressure and flashover, and the action is rapid.
(5) Real-time monitoring function of each test data:
The voltageand current value can be monitored, so that the test can be understood more intuitively.
(6)Phase sequence protection
The main function of the phase sequence protector is to avoid the wrong connection of the three-phase phase sequence of A, B, and C of the input power supply. If the wrong phase sequence protection relay operates, neither the console nor the circuit breaker can be closed; only when the correct phase sequence is connected can it be closed.
III.Main specification
● Rated output voltage: based on different test objects, max up to 1000kV.
● Output frequency: 50Hz.
● Waveform: pure sine wave, THD<1.0%.
● Max. capacity: Max up to 20000kVA
● Power Supply: 380/220V ± 15%/50Hz ± 5%.
IV.Schematic diagram about equipment wiring
VV
V. Trouble shooting
Fault
phenomenon
Possible cause
Solution
The console
cannot be closed
1. The phasesequence of the input power supply is
Incorrect
2.Over-voltage protection setting is too low or 0V;
3.The zero position of the voltage regulator is not closed
1.Swap the two input power cables at will;
2.Re-set the overvoltage value;
3.Check the zero baffle and zero switch Can't find resonance point
Can't seek
resonance
1.Is the wiring correct or secure2.Whether the capacitance range
of the test product is within the range of use of the device3.Resonant circuit is not formed
1.Recheck the wiring
2.Re-check the capacitance of the test object
3.Check whether theloop connection is correct and
whether the loop ground wire is
grounded at one point
VI. FAQ
1.What is your terms of delivery ?
We accept EXW, FOB, CFR, CIF, DDU, etc . You can choose the one which the most convenient and cost effective for you .
2.What’s your payment terms :
TT payment, L/C at sight, Paypal, Westernunion, etc.
3.How much is the shipping cost and time ?
This is depend on the size and weight of your product, and the method of shipping ( by sea/ by ari/ by Express) and your designated port . Kindly afford us above information to check shipping cost and time for you .
4.What’s the warranty period ?
Our warranty period is one year free and lifelong maintenance .
If produce damage within one year ( not man-made damage ), we will send you spare parts for replacement . After one year, maintenance is paid service .
5.What kind of Certificate you can provide ?
We can provide CE mark, ISO9001 quality certificate the third part Calibration Certificate (CNAS), factory test report .
VII. Application
VIII. Company profile
Our factory is located in Wuhan Huading Industrial Park, (Economic and Technological Development Zone Hubei), it covers area of more than 6000 square meters, the main products include: Series resonance test device, GIS PD test system, AC/DC high-voltage test transformer, Strong Current generator, three frequency power generator, Multi frequency induction voltage test device, Insulation withstand voltage test device and other testing instruments. Products are mainly used in Power Supply department, Power plant, Power construction, Railways, Petroleum, Chemical, Metallurgy, Coal and other sectors. The Superior products in factory: Series Resonance Frequency test device, GIS PD test system, her annual sales exceeded 200 sets, the Resonance test set and PD test system can meet the internation leading level. The factor has continued to develop overseas markets in recent years, , and some of its best products have been exported to Europe, America, Southeast Asia and other countries, which are well received by customers. Our factory has always put quality as the lifeline, product quality, working quality and service quality are in strict accordance with the ISO9001: 2008 management system.