【Performance Characteristics】

1.Data Acquisition:

The substation primarily collects current, voltage, operational status, and other parameters from high and low-voltage switchgear, enabling real-time monitoring of the mine's power grid safety system and transmitting data to the ground central station for local substation monitoring.

2.Versatile Functionality:

The substation supports power carrier communication over power cables, RS485 signaling, Ethernet electric signaling, data processing, bidirectional communication, indicator lights, and more.

3.Safety and Reliability:

The product holds explosion-proof and coal mine safety certifications, features a 304 stainless steel housing that is compact and durable, and boasts a high protection level, suitable for hazardous mine environments with gas, coal dust, and other flammable and explosive substances.

4.High Communication Quality:

The substation supports full-duplex transmission of Ethernet electric signals at a rate of 100Mbps, semi-duplex bipolar transmission of RS485 signals at 9600bps, and power carrier communication rates ranging from 2.5kbps to 5kbps, ensuring communication quality and efficiency.

【Working Principle】

The electrical principle of the KJF227 Mine-used Flameproof and Intrinsically Safe Power Carrier Acquisition Substation, as illustrated, mainly consists of a communication management module, a communication module, and a power supply unit. The monitoring data collected by the communication manager's acquisition port of the power substation primarily accomplishes the tasks of the monitoring and control system. The communication between the power substation and ground equipment is facilitated through Ethernet electric signals and RS485.

【Technical Parameters】

A.Structural Features:

a)Dimensions: 369×330×135(mm)

b)Weight: Approx. 27kg

B.Power Supply:

a)Operating Voltage: AC660V

b)Input Apparent Power: ≤200VA

C.Ethernet Electric Signal Interface (Intrinsically Safe):

a)Number of Interfaces: 1

b)Transmission Mode: Full-duplex, TCP/IP Ethernet electric signal transmission

c)Transmission Rate: 100Mbps

d)Signal Voltage Peak-to-Peak: ≤5V

e)Maximum Transmission Distance: 100m (using MHYV mine communication cable with a cross-sectional area of no less than 1.5mm²)

D.RS485 Signal Interface (Intrinsically Safe):

a)Number: 1

b)Transmission Mode: Semi-duplex, Bipolar

c)Transmission Rate: 9600bps

d)Signal Operating Voltage Peak-to-Peak: 2V～12V

e)Maximum Transmission Distance: 2km (using MHYV 1.5mm² mine communication cable)

E.Power Carrier Communication Parameters:

a)Number of Interfaces: 1;

b)Modulation Mode: DBPSK Digital Modulation and Demodulation;

c)Nominal Communication Rate: 2.5kbps～5kbps.

F.Um: AC726V Intrinsically Safe Parameters:

a)RS485 Port: UO: 6.6V, IO: 350mA, CO: 10μF, LO: 0.1mH

b)Ethernet Port: UO: 6.6V, IO: 740mA, CO: 10μF, LO: 80μH

【Product Qualifications】