Acrel APD Series Partial Discharge Detector
Acrel APD Series Partial Discharge Detector
General
Acrel APD series medium-voltage switchgear partial discharge detector device detects the partial discharge signal of the electrical equipment during operation through ultra-high frequency sensors (UHF), ground wave sensors (TEV) and ultrasonic sensors (AE), so as to judge whether there are hidden insulation hazards inside the high-voltage electrical equipment, give early warning, and ensure the safe and reliable operation of the power system.
Working Principle
Outline and Dimension
APD100
APD300-L
APD300-W
Wiring
APD100
APD100 terminal diagram
APD300-L
APD300-L terminal diagram
APD300-W
APD300-W wireless indicator
ATC600 terminal diagram
Typical Network
On-site Picture
Application
Acrel APD Series Partial Discharge Detector
Technical Parameter
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Type Parameters |
APD100 |
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Number of channels |
One |
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Measuring range |
-60dBm~+10dBm |
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Measurement content |
Discharge amplitude and frequency |
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Sampling |
1s |
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Matching impedance |
50Ω |
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Power supply |
DC10~30V |
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Power dissipation |
≤3W |
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Communication |
RS485 * 1、LORA * 1 |
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Baud rate |
2400、4800、9600、19200 （RS485） |
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Communication protocol |
MODBUS-RTU（RS485） |
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Relay output |
5A/AC250V，5A/DC30V 1 circuit normally open relay |
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Installation |
35mm guide rail installation |
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Working environment |
Temperature: -25 ℃~+70 ℃; Relative humidity ≤ 95% |
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UHF sensor
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Bandwidth |
300MHz~1600MHz |
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Effective height |
≥10.5mm |
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Interface |
SMA |
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Connecting cables |
Coaxial cable |
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Protective class |
IP65 |
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Installation |
Magnetic |
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Type Parameters |
APD300-L |
APD300-W |
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Power |
DC 12-36V |
Battery |
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Battery life |
– |
3-4years，replaceable (Model 2ER18505M) |
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Communication |
RS485（MODBUS-RTU） |
LORA |
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Sampling |
4s |
2h |
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PD monitoring sensors |
AE
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Measuring range |
0～60dBμV |
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Resonant frequency |
40kHz±1kHz |
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TEV |
Measuring range |
0～60dBmV |
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Bandwidth |
3MHz～100MHz |
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UHF |
Measuring range |
-70～10dBm |
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Bandwidth |
300MHz～1500MHz |
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Average equivalent height |
≥10mm |
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Environment |
Noise measuring range |
30dB～130dB |
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Temp measuring range |
-40℃～85℃ |
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Humidity measuring range |
0～100%RH |
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Working environment |
Temperature |
-40℃～85℃ |
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Relative humidity |
≤95%RH |
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Size |
Terminal form factor |
135mm*100mm*42mm |
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Installation |
Installation |
Magnetic |
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