Temperature Rise Explosion-Proof System
The SATEC SPR63 series switchgear temperature rise warning arc flash explosion-proof system monitors in real-time the temperature at connections inside the switchgear, such as busbars, circuit breaker moving and static contacts, and cable heads. When the temperature at any connection exceeds the set value due to heating, the system issues a temperature alarm signal to effectively prevent switchgear temperature rise faults. Arc flash sensors are installed in the cable compartment, facing each connection point to detect arc flash signals. When an arc flash occurs, the fault source can be cut off within 7ms, minimizing the damage caused by the arc flash to the equipment. The entire system's protection logic can be programmed based on three criteria: "temperature", "overcurrent", and "arc flash". Within a set time, arc flash faults caused by normal heating aging or sudden reasons are cleared, fully realizing the switchgear temperature rise warning and arc flash explosion-proof function.
- Commodity name： Temperature Rise Explosion-Proof System
- Commodity ID： SPR 63-T/C
- Product Description
- Summary
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System Composition
Host
The host mainly includes the SPR63-T temperature rising explosion-proof main unit and the SPR63-C temperature data concentrator
SPR63-T
■ Compact size, rail mounting
■ 100-240V ac/dc power input
■ Three-phase electric brick two-phase current + zero-sequence voltage monitoring
■ 2 viewpoint sensor inputs
■ Can collect signals from 12 wireless temperature sensors
■ 2 large-capacity trip output contacts
■ Communication interface: RS485
SPR63-C
■ Compact size, rail mounting, insulated sealing
■ 100-240V ac/dc power input
■ Maximum of 256 contact sensors
■ 2 large-capacity output contacts
■ Communication interfaces: RJ45, RS485
Temperature Measurement Terminal
The temperature measurement terminal consists of an induction power unit, temperature measurement unit, control unit, and wireless transmission unit. The shell is made of high-temperature resistant flame-retardant material and sealed with insulating material. It features small size and light weight.
Technical Features
LoRa wireless communication
LoRa (Long Range Radio) is characterized by achieving longer transmission distances than other wireless methods under the same power consumption, unifying low power consumption and long distance. Under the same power, it extends the traditional RF communication distance by 3-5 times. Advantages of LoRa wireless transmission technology: strong transmission signal with long distance (15km unobstructed in open areas), strong penetration (16 meters diameter under strong obstruction).
Features of Passive Wireless Temperature Sensors
■ Self-inductive power supply, maintenance-free for 10 years
■ Device thickness only 9.5mm, easy installation with no location restrictions
■ Sensor directly installed on moving contacts to ensure accurate measurement values
■ Sensor uses LoRa IoT transmission technology, improving device transmission performance
■ Device is lightweight and thin, weighing only 30g, with high protection level (IP67), suitable for various operating environments
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The SATEC SPR63 series switchgear temperature rise warning arc flash explosion-proof system monitors in real-time the temperature at connections inside the switchgear, such as busbars, circuit breaker moving and static contacts, and cable heads. When the temperature at any connection exceeds the set value due to heating, the system issues a temperature alarm signal to effectively prevent switchgear temperature rise faults. Arc flash sensors are installed in the cable compartment, facing each connection point to detect arc flash signals. When an arc flash occurs, the fault source can be cut off within 7ms, minimizing the damage caused by the arc flash to the equipment. The entire system's protection logic can be programmed based on three criteria: "temperature", "overcurrent", and "arc flash". Within a set time, arc flash faults caused by normal heating aging or sudden reasons are cleared, fully realizing the switchgear temperature rise warning and arc flash explosion-proof function.
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