- High Voltage Tester
- CT Tester
- PT Tester
- Transformer Tester
- Transformer Oil Test
- Relay Tester
- Circuit Breaker Test
- Cable Locator
- Overhead Power Line
- Generator Tester
- Earth Resistance Tester
- Capacitance Tester
- Partial Discharge Inspector
- Insulation Resistance Tester
- Other Tester
- Arrester Tester
- Electric Energy Tester
- Generator & Earthing Series Test Equipment
Partial Discharge Tester
Partial discharge does not cause the electric discharge of a completely short-circuited electrode. Such discharge usually has a very small amplitude value, but it will certainly cause the continuous deterioration of the property of the insulation layer and finally cause electric equipment fault.The non-intrusive partial discharge detection, as a convenient and simple method, is used for identifying the potential insulation faults which may cause power cutoff or personal injury.
The partial discharge emits energy in following manners:
Electromagnetic energy: radio wave, light and heat;Sound energy: sound wave and ultrasonic wave;Gas: ozone and nitric oxide.
he most practical non-intrusive detection technologies are all based on the detection of the high-frequency signals and the ultrasonic signals in the electromagnetic spectrum.
The product is an instrument which has simple operation and is specially developed for detecting the activities of electromagnetic waves and ultrasonic waves.
Product Parameters
Model: | ZC-830 |
Applicable scope | the non-intrusive mode is adopted to detect and locate the partial discharge defects of the high-voltage electric equipment. |
Detection principle | UHF (Ultra High Frequency) method, UA (Ultrasonic Analysis) method and TEV (Transient Earth Voltage) method |
Detection frequency band | the UHF detection frequency band is 300~2000(MHz) and the ultrasonic detection frequency band is 20~200(KHz). |
Measurement range | the UHF measurement range is -80~10dBm and the ultrasonic measurement range is -90~80dB. |
Sensitivity | the minimum sensitivity is 10pC (specifically determined by the distance between the sensor and the discharge source). |
Sensor: | a) UHF sensor: 300~2000(MHz), with directional reception characteristic; b) Ultrasonic sensor: 20~200(kHz); c) EV (Transient Earth Voltage) sensor: 5 ~ 100MHz. |
Embedded ultrasonic sensor and TEV & UA integrated sensor | such components as transformer dedicated sensor, GIS dedicated sensor and cable dedicated sensor can be selected; |
Software function: | a) Continuously detect UHF, TEV and ultrasonic signals to judge whether there is any partial discharge; b) Display the variation tendency of the detected signal in a real-time manner to intuitionally judge the development of the partial discharge signal; c) Field data storage function; |
Complete configuration | host machine, sensor, AC adapter, connecting cable and transport case |
Screen display | high-contrast 3.5”TFT color screen. |
Data storage | 4000 groups of test data can be stored. |
Working power supply | embedded 8.4V lithium battery for 8h’s continuous operation |
Power supply | input 100-240VAC, output 8.4V/3A, charging time 3~4h. |
Boundary dimension | 220 * 100 * 40 |
Instrument weight | 1.5kg |
Environment temperature | -25℃~45℃ |
Storage temperature | -35℃~60℃ |
