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 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)
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 Method
Input Power: 180V～270VAC, 50Hz±1%, Mains or Generator 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
Applications:
The instrument is also suitable for measuring tgδ and capacitance of high-voltage electrical equipment in workshops, laboratories, and research institutions; it has advantages of convenience, simplicity, and accuracy for insulation oil loss testing.
The dielectric loss tester can measure high-voltage electrical equipment that is ungrounded or directly grounded 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 testing, it outputs high voltages 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 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 identifies 50Hz and 60Hz system power supplies, supports generator power supply, and can measure normally even with large frequency fluctuations.
(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 voltage division effects of bus grounding and standard capacitor, 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 ensures consistent accuracy and stability for positive/reverse connections.
(10) Automatically identifies external high-voltage test power frequency from 40Hz to 70Hz, supports power frequency, variable frequency, and series resonant power supplies for large-capacity high-voltage dielectric loss tests.
