35kV Dielectric Loss Tester - Level 3 Installation Facilities 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 Booster Transformer” mode test voltage 10KV
“External Cn” mode (external high voltage, external standard capacitor) test voltage is determined by the standard capacitor and the test object (Umax=Imax/ωC)
Maximum current in standard circuit 50mA (In=UωCn)
Maximum current in test circuit 2A (Ix=UωCx)
35kV Dielectric Loss Tester - Level 3 Installation Facilities 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: approximately 40s, depending on measurement mode
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
Application:
The instrument is also suitable for measuring tgδ and capacitance of high-voltage electrical equipment in workshops, laboratories, and research institutions; it is more convenient, simple, and accurate for insulation oil loss testing.
The dielectric loss tester can measure non-grounded or directly grounded high-voltage electrical equipment using positive or reverse connection methods.
The dielectric loss tester is internally equipped with a high-voltage step-up transformer and incorporates safety protection measures such as zero-crossing switching and lightning protection. During the test, it outputs high voltage of different levels from 0.5KV to 10kV, making operation simple and safe.
Product Features
(1) It has multiple working modes: positive/reverse connection, internal/external standard capacitor, internal/external high voltage, integrated structure, can perform various routine dielectric loss tests without any external auxiliary equipment.
(2) LCD display, menu operation, rich test data, automatically distinguishes capacitive, inductive, and resistive test objects, built-in micro printer for printout.
(3) It has an external standard capacitor interface, can connect an external oil cup for precision insulation oil dielectric loss tests, can connect external solid material measuring electrodes for precision insulation material dielectric loss tests, and can also connect an external high-voltage standard capacitor for high-voltage dielectric loss tests.
(4) Automatically recognizes 50Hz 60Hz system power supply, and supports generator power supply, even with large frequency fluctuations, normal measurement can be performed.
(5) Built-in series and parallel dielectric loss measurement models for convenient instrument calibration.
(6) Can store 255 sets of measurement data.
(7) In CVT self-excitation method measurement, C1/C2 can be measured simultaneously with one connection, automatically compensating for the influence of busbar grounding and standard capacitor voltage division, without rewiring or external accessories.
(8) Chinese graphic menu, large-screen backlit LCD display for clearer viewing, real-time monitoring of current and voltage.
(9) Optimized circuit design makes the accuracy and stability of positive/reverse connections consistent.
(10) Automatically recognizes external high-voltage test power supply frequency 40Hz～70Hz, supports power frequency, variable frequency, and series resonance power supplies for large-capacity high-voltage dielectric loss tests.
