Circuit breaker contact temperature monitoring device
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The temperature testing device is adapt to the switch cabinet to self diagnosis and intelligent reverse development and design of the high voltage circuit breaker contact temperature online real-time monitoring device. This device has the following advantages:
1. Insulation isolation performance. This device's sensor and display monitor instrument through the wireless data transmission mode, solve the sensor high end and instrument of the low end the isolation between transmission.
2. Accurate temperature sensing mode. Sensor embedded or fixed on the contact touch arm, very close to the hot spots, can rapidly and accurately induction contact temperature change.
3. No battery power supply mode. Sensor part of the data processing and transmitting and receiving circuit adopts bus induction CT power supply.
4. Adopting digital coding mode wireless transmission technology. To solve the wireless signal of mutual interference problem and data transmission error correction problem. Accuracy of reading, high reliability.
5. Easy to network query. Each table display instrument are RS485 communication interface.
6. Various functional selection. System monitoring device with cabinet put oneself in another's position other internal temperature, humidity sensor and it can display the hot spots of the relative temperature rise, cabinet put oneself in another's position internal humidity and gel state.
The main technical indicators:
Temperature measurement range: 0-150 ℃ accuracy: plus or minus 1.5% FS
Temperature sensor: Japan import high precision, high temperature thermal resistance, 6 road touch hair hot + 1 road in temperature
Maintain the normal work of the temperature component of bus continuous running current range: 50 a ~ 2500 a
System and sensor components under bus impact current capacity: 100 ka 1 second
To adapt to the circuit breaker categories: existing market provides the circuit breaker type, specification, generally can be applicable, should be made according to users with actual size configuration method of installation.
Wireless communication frequency: 433 MHZ
Emission power: > 10 DBM
Temperature measuring device power supply and power consumption: AC220V plus or minus 15% < 5 w
Overtemperature alarm relay output:
Low temperature or super wet heating output:
Heater disconnection alarm output:
High temperature exhaust output:
Communication output interface: RS485, FT12 communication protocol
Baud rate: 9600
