Dispositivo de Medi\u00e7\u00e3o de Temperatura Sem Fio S\u00e9rie refere-se a uma fam\u00edlia de produtos projetados para monitorar a temperatura em v\u00e1rios pontos sem a necessidade de fia\u00e7\u00e3o f\u00edsica entre o sensor e a unidade de coleta ou exibi\u00e7\u00e3o de dados. Esses sistemas s\u00e3o cruciais para o monitoramento de equipamentos el\u00e9tricos, processos industriais e condi\u00e7\u00f5es ambientais onde solu\u00e7\u00f5es com fio tradicionais s\u00e3o impratic\u00e1veis, inseguras ou muito caras.<\/p>\n\n\n\n
Short-circuit Alarm Indication: The short-circuit sensor detects the line current during operation and sends an alarm signal when a short-circuit fault occurs on the line and meets the short-circuit judgment criteria.<\/p>\n\n\n\n
Grounding Alarm Indication: The grounding sensor detects the zero-sequence current of the line during operation and sends an alarm signal when a grounding fault occurs on the line and the grounding fault current exceeds the set alarm current value<\/strong>.<\/p>\n\n\n\n Over-temperature Alarm Indication: The temperature sensor detects the temperature of the cable near the cable head during operation and transmits the data to the host via optical fiber in a very short time. When the cable temperature reaches or exceeds the set alarm temperature value<\/strong>, the host sends an alarm signal and closes the contact.<\/p>\n\n\n\n The 2-in-1 sensor for temperature and current display monitors the temperature and current of the monitoring point during operation, and transmits the data to the host via optical fiber at a certain frequency. After receiving the signal, the host displays the data on the LCD screen (Realize page-up and page-down to check the current and temperature of each phase via operation and key pressing). (Current display is an optional function<\/strong>.)<\/p>\n\n\n\n Two-remote Communication: After the indicator generates short-circuit and grounding alarm signals, it can output and transmit the fault status remotely via RS485 communication cable; in the fault-free state, the line load current and the temperature of the monitoring point are regularly reported to the upper computer via RS485 cable. (Optional function.)<\/p>\n\n\n\nPar\u00e2metros T\u00e9cnicos<\/h3>\n\n\n\n
Item<\/th> Par\u00e2metro<\/th><\/tr><\/thead> Short-circuit Alarm<\/td> 50~1000A (factory configurable), tolerance \u00b15%; factory setting: 600A<\/td><\/tr> Short-circuit Overcurrent Response Time<\/td> 0.03~5S (factory configurable); factory setting: 0.2S<\/td><\/tr> Grounding Alarm<\/td> 10~100A (factory configurable), tolerance \u00b110%; factory setting: 20A<\/td><\/tr> Grounding Overcurrent Response Time<\/td> 0.03~5S (factory configurable); factory setting: 0.2S<\/td><\/tr> Over-temperature Alarm<\/td> 20~80\u00b0C (field configurable), tolerance \u00b11\u00b0C; factory setting: 80\u00b0C<\/td><\/tr> Auto-reset Time<\/td> 7S~48h (factory configurable); factory setting: 8h<\/td><\/tr> Standby Current of the Whole Unit<\/td> \u2264 5\u03bcA<\/td><\/tr> Indicator Protection Class<\/td> Host IP40; Sensor IP65<\/td><\/tr> Short-circuit & Grounding Protection Contact Capacity<\/td> 230V\/AC-0.1A, 30V\/DC-1A<\/td><\/tr> Over-temperature Trip Contact Capacity<\/td> 230V\/AC-0.1A, 30V\/DC-1A<\/td><\/tr> Over-temperature Alarm<\/td> Relay output for 3 cycles (2S per cycle, set 750mS, reset 1250mS)<\/td><\/tr> Maximum Withstand Current of Short-circuit Current Sensor<\/td> 31.5kA\/4S<\/td><\/tr> Ambiente Operacional<\/td> -25\u00b0C ~ +75\u00b0C; relative humidity: \u2264 95%; waterproof, acid-proof, salt-fog resistant<\/td><\/tr> Escopo da Aplica\u00e7\u00e3o<\/td> In systems with voltage level below 20kV<\/td><\/tr><\/tbody><\/table><\/figure>\n\n