Monitoring system for power supply

KJ512
Mining monitoring system for power supply
Brief introduction
KJ512
KJ512 mining monitoring system for power supply is fully integrated using grounding grid comprehensive au tomation t echnology on t he
basis of coal mine real environment to design and manufacture monitoring system for power supply. In order to realize the protection
functions of short-circuit, overload, under-voltage, over-voltage, creepage, phase-breaking and insulation watching, the system is assembled
with high & low volt age switch es cabinet , monitor & communication equipment to remote metering the current, voltage, effective power, noneffective power and kwh value. This system can connect to the coal mine attemper system, coal mine gas monitoring system and netw
orked video surveillance system. The entire system configuration is reasonable. The system can work wel l, safe a nd re liable by informat ion
sharing to prevent and reduce accidents in the coal mine.
System features
Let operator know the real time data, operation status of the coal mine power supply system to improve coal mine safety and reliability.
It will display, record the coal mine power supply system data, operation data and the line fault status. The operator can facilitate the
load distribution, power supply scheduling, production and emergency command.
Displaying and recording the real time data, historical data, work records, fault records of coal mine power supply system facilitate the
maintenance, repair, fault reason analysis of the coal mine power supply system and the performance, the operations, and maintenance
assessment.
Remote control for power on/off and remote control the setting parameter of the electrical equipments will let the operation and setting
be timely and more accurate, avoid the mistakes of operations and settings.
It will display the working time, kwh value, and record it as report forms for the assessment and management.
It will display and record the data of current, voltage, effective power, non-effective power, power factor for the reference based on.
It can edit and check the model of the electrical equipment, protection setting value, special clinics technical parameter, manufacturers,
installation and use time, users, maintenance team, responsible people of the mainte nance and operation, responsib le people of
Inspection. All these will be convenient for further management of the electrical equipments.
Power supply automatic control, unattended, less staff more gains.
System composition
KJ512
(
KJ512)
KJ512-F
WINDOWS2000/2003/XP
KJ512-F
RS485
RS485
KJ512 mining monitoring system for power supply(hereinafter: KJ512) is consists of four parts: ground master station, KJ512-F branch
station of monitoring system for power supply, explosion proof camera and switch protection device.
Ground ma in statio n: commun ication s erver, video server, monitoring stations, printer, Ethernet switch. The use of distributed architecture
offers a variety of organizational forms, which can be stand-alone mode or multi-machine network mode. Operating system supports
WINDOWS2000/2003/XP.
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Mining explosion-proof products
KJ512-F mining explosion proof & intrinsic safety branch station of monitoring system for power supply: Mainly to comple te th e dat a exc hange
of protection devices and ground monitoring system and enable centralized co ntrol, bra nch statio ns are connected via optical cable for
optical Ethernet as the transport platform for underground communica tions, su b-stat ions connect t o protect ive devic es by the RS485 bus,
and get real-time data, operation status, operation and faults time records and other information to complete the data exchange of the switch
protection device with ground master station attempering and monit oring syst em.
Switch protection device: high voltage distribution device, high voltage magnetic starter, low voltage feeding switch, low voltage magnetic
starter, combination switches and so on. Via RS485 BUS and branch station of monitoring system for power supply, it can complete the
protection of electrical equipments, measure of electrical circuit, data co llection, data transmission and control of execute.
Main technical parameter
TCP/IP
TCP/IP
(
(
)
10/100Mbps
100Mbps
10km
RS485
1km
AC220V
-10%~+10%
2h
AC127V
-25%~+10%
2h
Transmission performance: between computer and ground Ethernet switch: TCP/IP electrical signal(twisted-pair), speed of 10/100Mbps.
Between ground Ethernet switch and branch stations(and same type branc h station) : TCP/I P opti cal s ignal (fib er op tic cab le), speed
of 100Mbps, distance of 10km.
Between b ranch sta tions and switch protection devices: RS485 communication mode, speed of 9600bps, distance of 1km.
Power source of ground equipments: rated voltage AC220V 10%, UPS electrical source can supply power for 2 hour.
Power source of communication branch station: rated voltage AC127V(-25%~+10%), the sta ndby elect rical sourc e can sup ply power
for 2 hour.
)
9600bps
UPS
System functions
10kV/6kV/1140V
Windows XP
SQL SERVER
C/S/B(Clint/Server/Browse)
4
116
Internet
Advanced functions of remote control and remote communication: complete the operations of open and closdown for the switch protection
device on the ground; complete the resetting for alarming and protection signals; display the real time operation status, real time alarming
signal of the switch protection device.
Remote adjusting function: the ground control center can complete to deal with the functions of collection, check, setting and storage for
each switch or starter in the monitoring system of the power supply.
Self-contained detection function: detect the real time operating parameter data of voltage, current, effective power, non-effective power,
active power, reactive power and power factor in the power supply system of 10kV/6kV/1140V.
Basis of windows XP adopt the SQL SERVER database, C/S/B(Clint/Server/Browse) three layer structure mode.
Displaying and printing functions: display the main structure diagram, graph, bar graph and waveform; display loads, total kwh value per
day and general kwh value of whole coal mine.
Fault wave recording functions: record 4 cycle before current fault or voltage fault and record 116 cycle after the current fault or voltage
fault.
Multilevel password function: permission to set different operating authority prevent unrelated person to query, set, delete files.
Monitoring center software, which is user-friendly and powerful, can adapt the requirement of often changing line the under-ground substation
needs and take a remote on-line modification for the structure diagram of power supply via internet networks.
Comprehensive management functions: establish a managemen t file fo r each branch circuit and intelligent managemen t system. It will
record and analyse each setting value, resetting, test and fault. It will alarm according to the management system.
System authority should be very careful and strict management of rights. Each operator can be set on different computers with different
permissions.
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KJ512-F
Mining explosion proof & intrinsic safety branch station of monitoring system for power supply
Application
KJ512-F
KJ512-F
KJ512-F
KJ512-F
PLC
KJ512-F
KJ512-F branch station of monitoring consists of industrial Ethernet switch, c ommunicat ion management machine,
video coder, power supply panel, isolation fense, UPS electrical source and explosion proof shell.
KJ512-F is designed for the transformer substation in the coa l mine downh ole. I t is ma inly u sed for the communication
between the ground work station and intelligent comprehensive protection device to display the real-time electrical paramet er,
working st atus of th e intellig ent protec tion device and actualize the monitoring and control for the transformer substation.
At same time, it will complete to transmit the data from the comprehensive protec tion devic e to the w ork s tatio n and
transmit the control order from the work station to the protection device.
KJ512-F is installed a industrial Ethernet switch to form a double rin g opti cal Ether net. KJ512 -F does not only t ake the
communication with the comprehensive protection devices, but also access with an E thernet in terface vi deo surveillance
system and a PLC monitoring system which have a ethernet. KJ512-F will send all the signals of the system to the ground
workstation.
KJ512 -F ca n wor k wit h a s ingle doub le ring ethernet or work together with all the existing Ethernet in the coal mine downhole.
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Mining explosion-proof products
Features
32
2
Powerful industrial level 32bit processor can work reliable.
Communication way is smart and it supports multi protocol, multi baud rate and multi communication way.
Adapting the real time operating software.
Communication and monitoring software is in plug-in modules which is a ea sy expansio n and conven ient to complete
the data exchange between the protection devices and the ground attemper and monitoring system, and to achieve the
focus local control center can continue to work for more than 2 hour and transmit the fault information to the gro und
workstation after power-down.
The optical switch is installed in the KJ512-F branch station. It is convenient to form a optical Ethernet ring.
This branch station support the remote maintenance and remote monitoring.
The LCD display screen will display all the record data of current, voltage, switch status and fault of transformer substation.
It can connect to the intelligent equipment.
Main technical parameters
Electrical source AC127V
Range 75%~110%
Power
150VA
Communication port
Ethernet port 2
double pair single mode optical port
SC port
Sensitivity of reception -28dBm(
1310nm :single mode signal wavelength:1310nm)
Transmission distance:10Km
Video port
2
2way optical port of video
connecting port:ST
Sensitivity of reception -28dBm(
1310nm single mode signal wavelength:1310nm)
transmission distance 10km
RS485
RS485 transmission port of intrinsic safety signal
4
1km
4way Transmission mode master-slave, half-duplex; distance 1km
32
General capacity 32 end port at most
2
Standby electrical source 2 hour
Working temperature 0~40
Main function
HRG-7RT/HRG-7FYRT
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KJ512-F
Mining explosion proof & intrinsic safety branch station of monitoring system for power supply
Telnet ftp
hdr
cfg
Data exchange function between protection devices and ground attemper and monitoring system:
It can receive and record the control order from the ground attemper center.
According to the order from the ground attemper center, it can collect the data of remote measure, remote communication, series
fault record, tape-recorded wave data and transmit to the ground work station.
It has the open/close functions according to the order from the ground attemper center.
Monitoring function in local focus center:
Monitoring the switch status.
Real time display functions of current, voltage.
Recording and display functions for big accident.
Comprehensive selecting creepage function in the electrical circuit:
Cooperating with HRG-7RT/HRG-7FYRT comprehensive protection device comp lete select ive single p hase ground ing fu nctio n in
the transformer substation to indicate that the grounding line and grounding phase have time function via fault record and signal.
Complete the time function from the attemper station to the comprehensive protection device. The main attemper station will ch eck
one time for each 30 min. and the branch station will check for each 15 min. to insure the time is same.
The branch station will monitor the real time working status of the comprehensive protection device. When there is a new protection
device, the branch station will be active to keep the time same with the new protection device.
Conversion function of stipulations of an agreement
Statute of plug-in expansion modules, you can easily access third-party Smart Device.
Remote maintenance function:
Remote monitor the communication status, re mote update the softwar e, remote ma intenance for data, remote download the taperecord wave data; visit the branch station communication server to update the software and download the tape-record wave data via
Telnet or ftp.
Data storage function after power down: when the system is power down, the information and transmission will go on.
Monitoring of the communication status for each protection device:
When communication of the protection device is shutdown, it will come into being a communication breaking record. This record will
display and be sent to the ground attemper and monitoring center.
Real time monitoring all the operations of control:
The modification order from the main station for setting value: When the order is sent to the comprehensive protection device and the
protection device is executed, the branch station will make a record.
The control order from the main station for the switches: when the protection device is execute, the branch station will take a record
for this remote control order.
Storage function for tape-recorded wave. When comprehensive protection device has a tape-recorded wave data, the branch station
will ask this data from the protection device and form t hree file of hd r, cfg.
KJ512-F
Main display screen for KJ512-F branch station
10
- -
.
Monitoring open/close stausof the switch: green means close , red means open ;
Measuring value display: display the second time side current for each switch, the bus line will display three line-voltage and a zero voltage;
Protection signal indicating: when there are alarm signal or protection action signals, there will be a red signal in the related switch side.
When the signal is reset, the light will disappear. When the light is light, you c an query the real non-reset signal name by the menu of
non-reset signal;
Communication status display: green light means normal , red light means fault ;
Fault record display: it will display 10 fault record seriously in the nether of the screen. The time display mode is Year-month-date hour:
min: sec
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Mining explosion-proof products