Level 4 Commissioning Equipment - Heterodyne Dielectric Loss Tester Product Features
(1) With positive/reverse wiring, internal/external standard capacitor, internal/external high voltage multiple working modes, integrated structure, can do various routine dielectric loss tests without any external auxiliary equipment.
(2) LCD display, menu operation, rich test data, automatically distinguish capacitance, inductance, resistance type test objects, built-in micro printer can print output.
(3) Has external standard capacitor interface, can connect external oil cup for precision insulating oil dielectric loss test, can connect external solid material measuring electrode for precision insulating material dielectric loss test, also can connect external high voltage standard capacitor for high voltage dielectric loss test.
(4) Automatically identify 50Hz 60Hz system power supply, and support generator power supply, even if the frequency fluctuation is large, can measure normally.
(5) Built-in series and parallel two dielectric loss measurement models, convenient for instrument calibration.
(6) Can store 255 groups of measurement data.
(7) When CVT self-excitation method measurement, C1/C2 can be measured at one time wiring, automatically compensate the busbar grounding and standard capacitor voltage divider influence, no need to change wires or connect any external accessories.
(8) Chinese graphic menu, large screen backlight LCD display clearer, real-time monitoring of current and voltage.
(9) Optimized circuit design, so that the accuracy and stability of positive/reverse wiring are consistent.
(10) Automatically identify external high voltage test power supply frequency 40Hz ~ 70Hz, support power frequency power supply, variable frequency power supply and series resonance power supply for large capacity high voltage dielectric loss test.
Level 4 Commissioning Equipment - Heterodyne Dielectric Loss Tester Internal Connection Method
Test Voltage Test Object Capacitance
5KV 7.5KV 10KV 3PF~40000PF
1.5KV 2.25KV 3K 10PF~0.35μF
0.5kv 0.75kv 1kv 30PF~1.5μF
2.3.2.2 External Connection Method
“External Step-up Transformer” method test voltage 10KV
“External Cn” method (external high voltage, external standard capacitor) test voltage determined by standard capacitor and test object (Umax=Imax/ωC)
Standard circuit maximum current 50mA (In=UωCn)
Test object circuit maximum current 2A (Ix=UωCx)
CVT ratio measurement:
Ratio measurement accuracy: ±reading×1% Ratio measurement range: 10～99999
Phase measurement accuracy: ±0.1° Phase measurement range: 0～359.9°
Measurement time: about 40s, related to measurement method
Input power: 180V～270VAC, 50Hz±1%, mains or generator power supply
Computer interface: standard RS232 interface
Printer: Weihuang A7 thermal micro printer
Ambient temperature: -10℃～50℃
Relative humidity: <90%
Dimensions: 460×360×350mm
Instrument weight: 28kg
Purpose:
The instrument is also suitable for measuring tgδ and capacitance of high-voltage electrical equipment in workshops, laboratories, and scientific research units; for insulating oil loss testing, it has the advantages of convenience, simplicity, and accuracy.
Dielectric loss tester can use positive and reverse wiring methods to measure high-voltage electrical equipment that is not grounded or directly grounded.
Dielectric loss tester is internally equipped with a high-voltage step-up transformer, and has adopted safety protection measures such as zero-crossing closing and lightning protection. During the test, output 0.5KV～10kV different levels of high voltage, simple and safe operation.
