Comprehensive tester of transformer characteristics / volt ampere characteristic test |

Product overview       Jhhg-ct transformer characteristic comprehensive tester is specially designed for relay protection professional test of current transformer volt ampere characteristic, transformation ratio test and polarity discrimination. It can also be used for transformer polarity discrimination test. It is a multi-functional test instrument with high performance price ratio.   The instrument adopts high efficiency and low consumption high quality material and special winding booster, microprocessor for data collection, analysis and storage, built-in micro printer can print test data and curves, when measuring CT transformation ratio, it can automatically calculate the transformation ratio. One person can complete the test. The machine is light, portable and easy to operate. Its unique performance is a rare instrument at present.           technical parameter       1. Input voltage: AC 220V or 380V, 50Hz, automatic identification input voltage.   2. Working environment temperature: 0 ~ 40 ℃.   3. Input voltage: when input AC 220V, output 0-500v.   When input AC 380V, output 0-1000.   Current: the maximum instantaneous current, 600A when measuring the transformation ratio.   When input AC 220V, output 0-400a.   When input AC 380V, output 0-600a.   The volt ampere characteristic is 15A.   4. Measurement range of digital voltmeter: 0-9999v; resolution: 0.1V.   For current display: 0-9.9a; resolution: 0.1mA.   5. Measurement range of digital ammeter: 0 ~ 3000A; resolution: 0.01A.   ⒍ error: 1 ≤ 1%, u ≤ 1%.   (5) when measuring the CT transformation ratio, it can automatically calculate the transformation ratio, and print the data and calculation results.   8. Store and print 20 sets of current and voltage values and volt ampere characteristic curves when measuring volt ampere characteristics.   ⒐ external dimension: l × w × H = 470 × 340 × 260mm3.   ⒑ weight: 23kg. 1 - voltage acquisition input terminal, connected to the remote end of AC output, and connected to the secondary side of CT.   2 - AC current output, connected to CT secondary side.   3 - regulator output fuse (15a).   4 - regulator output switch.   5 - pressure rise regulating handle.   6-current display (V) on four position LCD screen [CT secondary current display for ratio test].   7-current display on four digit LCD screen (a) [CT primary current display for ratio test].   8 - printer.   9 - Data reset button.   10 - key for storing data.         11 - Print button.   12 - reset indicator light.   13 - storage indicator.   14 - ratio current input is connected to CT secondary side.   15 - the ratio current output is connected to the primary side of CT.   16 - change-over switch for volt ampere characteristic test and transformation ratio test.   17 - polarity discrimination input is connected to CT secondary side.   18 - polarity discrimination output connection CT primary side.   19 - polarity discrimination current display meter, zero position when not tested.   20 - polarity discrimination on-off key press once to turn on and release to turn off.   21 - grounding socket.   22 - complete machine insurance (1a).   23 - power socket.   24 - power switch of the whole machine.   25 - external sensor interface, external primary current input terminal.