Automatic Capacitance & Dissipation Factor Test set
This is the most advanced automatic version of the C&DF sets within our product range. The automatic 12kV 200mA test set integrates the high voltage power source and the measuring bridge into one single compact unit. It is designed to measure Dissipation Factor and Capacitance in heavy electromagnetic interference environment such as in power plants and substations. Using digital filters it eliminates interference signal to specimen signal by a ratio as high as 2:1. It can also be used in laboratory for high accuracy tests on High Voltage Bushings, Transformer windings, shunt reactors, Current transformer, Capacitor Voltage transformer (CVT), grading capacitors of Circuit Breakers, Surge Arrestors and Generator windings.
Added to the technical features is the very user friendly GUI of the system which allows all settings and display of results on the same big back-lighted colored LCD display, and the feather touch membrane key panel. The parametric settings are very simple, and do not require any skilled operators. The set has inbuilt safety protections to take care of any operational or unintentional mistakes that may occur.
Features
· Just set test parameters, push start, and everything is automatically done in sequence right up to printing of test results.
· High Interference suppression, good signal-to-noise ratio.
· UST, GST ad GSTg test modes
· CVT test facility
· Input overvoltage protection
· Output short-circuit protection
· Poor ground rejection
· Fault protection and indication
· Can be used with external power supply up to 12kV for enlarged current to 1A, for generator related testing
· Electronic Calibration done at our NABL accreditated lab, with results traceable to national standards.
· Thermal Printer integrated
· RS-232 output
Technical Parameters
Dissipation Factor Range – no limit
DF Resolution – 0.001% (1 X 10-5)
DF Accuracy – 1% + 4 digits
Capacitance Range – 3pF to 50000pF @ 12kV
60pF to 1uF @ 0.5kV
Capacitance Range Accuracy – 1% + 1 digit
Test Voltage range – 0.5kV to 12kV, 200mA(max)
Test Voltage resolution – 1V
Test Voltage accuracy – 1% + 10 digits
Input Current Range – 10uA to 5A
Test time – 30s typical
CVT test mode – O/p Voltage 3 to 50V, O/p Current 3 to 30A
Internal HV frequency – 45, 50, 55, 60, 65 Hz (single)
45/55Hz, 55/65Hz (auto multiple frequency measure & avg for interference suppression)
Input Supply – 1-phase 220V 50Hz, +/- 10% (flat pin type, type G electrical plug)
Printer – Thermal printer
Communication Port – RS-232
Operating Temperature – minus 10 deg C to 50 deg C
Storage Temperature – minus 20 deg C to 60 deg C
Humidity - <90% condensing
Dimensions (excluding accessories) – 45 X 35 X 35 (all dims in cms)
Weight including accessories – 35 kgs
