Product Description:
7703 is a 2-channel 5KV impulse winding tester and able to measure inductance down to 0.5uH as well as magnify high-frequency harmonics to prevent shorts between the layers of windings. Mild corona occurring between coils would create harmonics with small amplitude and high frequency (>10MHz) which cannot be detected by a regular impulse winding tester that can only observe mild amplitude without actually identifying the fault. MICROTEST 7703 deploys “High-frequency harmonics analysis HARM “technique to magnify high-frequency harmonics then display them on screen then identify each mild discharge between layers and ensure the quality of each component coil.
Product Specification:
Measurement Data
| Channel | 2 |
| Impluse Voltage | 200V ~ 10000V |
| Lowest Inductance Value | 0.5uH |
| Accuracy | ±2% |
| Measurement Time | 50mS |
| Measurement Mode | The comparison between standard and test waveforms |
| Indicators | Pass/Fail HV LED red-green indicator lights/Screen Display/Sound |
Specifications
| Power Supply | 98 ~ 132Vac or 192 ~ 264Vac |
| Display | 320*240 dot-matrix display |
| Interface | RS-232, Print Port, Remote Control |
| Flash Memory | Storage of 200 rewritable data sets |
| Operation | Auto、Manual |
| Environment | Temperature : 10℃ to 40℃ Humidity : 20 ~ 90% |
| Dimension (W*H*D) | 435x133x525 (mm) |
| Weight | 8 (Kg) |
Measurement Items
| HARM |
| HFLT |
| Total Area |
| Area size comparison |
| Waveform comparison |
| Flutter |
| Corona |
Quantize high-frequency harmonic waves for the datamation of short circuit problems
MICROTEST 7703 provides “High frequency noise signal analysis HFLT”funtion to quantize the data of all the high-frequency harmonics into numeric numbers that interpret harmonic wave changes. This model will setup upper and lower thresholds according to these figures and has the capability to detect even the smallest short between layers.
Utilize high-frequency harmonics analysis function, detect the most typical problems of high voltage slot line
After the test, we found out the parameters e.g. Area under the curve, Area size and waveform comparison are all PASS, but high-frequency harmonics and high-frequency noise signals are out of specification, this short-circuit problem between layers is caused by high voltage slot line.
Applications
Inverters, Power Inductors, Winding, Transformers, Motors, Wave Filters, Capacitors and Circuit breaker
- Açıklama
Product Description:
7703 is a 2-channel 5KV impulse winding tester and able to measure inductance down to 0.5uH as well as magnify high-frequency harmonics to prevent shorts between the layers of windings. Mild corona occurring between coils would create harmonics with small amplitude and high frequency (>10MHz) which cannot be detected by a regular impulse winding tester that can only observe mild amplitude without actually identifying the fault. MICROTEST 7703 deploys “High-frequency harmonics analysis HARM “technique to magnify high-frequency harmonics then display them on screen then identify each mild discharge between layers and ensure the quality of each component coil.
Product Specification:
Measurement Data
Channel 2 Impluse Voltage 200V ~ 10000V Lowest Inductance Value 0.5uH Accuracy ±2% Measurement Time 50mS Measurement Mode The comparison between standard and test waveforms Indicators Pass/Fail HV LED red-green indicator lights/Screen Display/Sound Specifications
Power Supply 98 ~ 132Vac or 192 ~ 264Vac Display 320*240 dot-matrix display Interface RS-232, Print Port, Remote Control Flash Memory Storage of 200 rewritable data sets Operation Auto、Manual Environment Temperature : 10℃ to 40℃ Humidity : 20 ~ 90% Dimension (W*H*D) 435x133x525 (mm) Weight 8 (Kg) Measurement Items
HARM HFLT Total Area Area size comparison Waveform comparison Flutter Corona Quantize high-frequency harmonic waves for the datamation of short circuit problems
MICROTEST 7703 provides “High frequency noise signal analysis HFLT”funtion to quantize the data of all the high-frequency harmonics into numeric numbers that interpret harmonic wave changes. This model will setup upper and lower thresholds according to these figures and has the capability to detect even the smallest short between layers.
Utilize high-frequency harmonics analysis function, detect the most typical problems of high voltage slot line
After the test, we found out the parameters e.g. Area under the curve, Area size and waveform comparison are all PASS, but high-frequency harmonics and high-frequency noise signals are out of specification, this short-circuit problem between layers is caused by high voltage slot line.
Applications
Inverters, Power Inductors, Winding, Transformers, Motors, Wave Filters, Capacitors and Circuit breaker
