AC HV High Voltage withstand voltage Test Equipment variable frequency Resonant Test set system Cable Testing Hipot Tester for GIS, Cable, Transformer
I. AC Resonant Test System Product description
AC Resonant test system is mainly used for conducting the on-site AC dielectric test for electric equipment with large capacity, including medium-low voltage, high voltage and ultra-high voltage XLPE, GIS, motor stator, large-sized transformer and electric capacitor.
The series variable frequency resonant system is to change the system inductance and test frequency to make circuit in resonant condition. Its electric circuit is shown in Fig.2. The adoption of variable frequency resonant technology reduces the capacity of power source and the weight of equipment, which facilitates on-site test.
the AC Resonant test system is composed of Variable-frequency power source, Exciting transformer, High voltage reactor, Capacitive voltage divider composition.
and output voltage range of the AC Resonant test system is 0-1200kV, which can be customized according to your test requirements.
Fig.1 54kVA/54kV AC Resonant test system
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II. AC resonant test set Function:
1. Device with over-voltage,over-current, zero startup, system detuning,high voltage flashover fault,ect protection function.the over-voltage over-current protection value can be set according to the needs of user.flashover protection movement when the test object flashover, and mark down flashover voltage value, for test analyzed.
2.The whole device ,the largest piece very light weight not more than 40kg and convenient for field use.
3.Device has four working mode, user-friendly according to the site condition flexible choice, improve test speed.working mode as automatic mode,manual mode,automatic tune mode and manual boost mode.
4.Can store and print data,nonlocal print data, the serial number of the stored data is number, easy to help users digital identification and searching.
5.Frequency starting point can be set arbitrarily within prescribed scope when the device automatic frequency sweep.Sweep frequency direction can choose to up or down,, meanwhile color LCD big screen display scanning resonance boost and timing curve, be convenient for the user intuitive understanding whether find resonant point.
6.Adopted DSP platform technology, according to user needs ,can conveniently increase or decrease function and upgrade, but also makes the man-computer exchange interface humanized.
below is the schematic diagram
III. Applied test object details ( Take 4000kVA/800kV AC Resonant test system for example)
warmly welcome to consult other specifications which is suitable for your tested sample
Device combine
Test object |
Reactor: 1000kVA/200kV
4 pcs |
Exciting transformer output selection |
| 110kV,630mm2,3km power cable |
4 pcs in parallel |
6kV |
| 220kV,630mm2,1.2km power cable |
4pcs,2 in series, 2group in parallel |
12kV |
| 110 kV power system,busbar,GIS,etc |
2 pcs in series |
12kv |
| 220 kV power system,busbar,GIS,etc |
3 pcs in series |
12kv |
| 500 kVpower system,busbar,GIS,etc |
4 pcs in series |
36kv |
IV. 4000kvA/800kV Variable Frequency Resonant factory release test picture:
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