Four-Level Commissioning Equipment - Heterodyne Dielectric Loss Tester Product Features
(1) It has multiple working modes: positive/negative wiring, internal/external standard capacitor, internal/external high voltage, integrated structure, can do various conventional dielectric loss tests, no need to connect any auxiliary equipment externally.
(2) LCD display, menu operation, rich test data, automatically distinguish capacitance, inductance, resistance type test objects, built-in micro printer can print output.
(3) It has an 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, can also 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, it can measure normally.
(5) Built-in series and parallel two dielectric loss measurement models, convenient for instrument calibration.
(6) Can store 255 sets of measurement data.
(7) When measuring with CVT self-excitation method, C1/C2 can be measured at one time with one wiring, automatically compensate the influence of bus grounding and standard capacitor voltage division, no need to change wiring or connect any external accessories.
(8) Chinese graphic menu, large screen backlit LCD display clearer, real-time monitoring of current and voltage.
(9) Optimized circuit design makes the accuracy and stability of positive/negative wiring 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.
Four-Level 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 is 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, depending on 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 insulation oil loss testing, it has advantages such as convenience, simplicity, and accuracy.
Dielectric loss tester can measure high-voltage electrical equipment that is ungrounded or directly grounded using positive and negative wiring methods.
The dielectric loss tester is equipped with a high-voltage step-up transformer inside, and safety protection measures such as zero-crossing closing and lightning protection are taken. During the test, it outputs high voltage of different levels from 0.5KV to 10kV, simple and safe operation.
