Product Functions:
1) It has multiple working modes including positive/reverse wiring, internal/external standard capacitor, internal/external high voltage, and an integrated structure. It can perform various routine dielectric loss tests without needing any external auxiliary equipment.
(2) It has a four-channel positive wiring mode, which is convenient for transformer bushing dielectric loss tests.
(3) It has an external standard capacitor interface that automatically tracks the external test power frequency of 40Hz~70Hz, supporting power frequency power supply and series resonant power supply for large-capacity high-voltage dielectric loss tests.
(4) It has a discharge indication function for poor loop contact, making it easy to judge whether the wiring is reliable.
(5) It has a CVT self-excitation measurement function. C1/C2 can be measured simultaneously with one connection, automatically compensating for the influence of bus grounding and standard capacitor voltage division. No rewiring or external accessories are needed, and the high-voltage connecting wire can be dragged on the ground.
(6) It has a CVT transformation ratio function, which can measure CVT transformation ratio, polarity, and phase error.
Product Aliases
Dielectric loss tester, anti-interference dielectric loss tester, fully automatic dielectric loss tester, heterodyne dielectric loss tester manufacturer, heterodyne dielectric loss tester manufacturer, anti-interference dielectric loss tester, fully automatic dielectric loss tester
Internal Booster Output Capability
Output Voltage Rated Output Current
5kv 7.5kv 10kv 100mA
1.5kv 2.25kv 3kv 300mA
0.5kv 0.75kv 1kv 500mA
External Connection Methods
“External booster” mode: maximum test voltage 10KV
“External Cn” mode (external high voltage, external standard capacitor): maximum test voltage determined by the standard capacitor and the test object (Umax=Imax/ωC)
Standard circuit maximum current 50mA (In=UωCn)
Test circuit maximum current 2A (Ix=UωCx)
Operating Precautions:
1. When using, the instrument's grounding terminal must be reliably grounded.
2. Only when the instrument power is turned off and the internal high voltage switch is set to the “OFF” position, is it considered safe to contact the rear of the instrument and its measurement cables with the test object.
3. During measurement, it is strictly prohibited to operate the “Test Voltage” selection switch.
4. In positive wiring mode, the UH terminal is high voltage; in reverse wiring mode, the IX terminal is high voltage. When using, keep sufficient distance between the high-voltage cable and the ground according to the actual situation, except for special cables when the test voltage is below 10KV.
5. Do not replace fuse tubes that do not conform to the panel indication values.
6. When using, use the cables provided by the manufacturer as much as possible to ensure measurement accuracy.
