1 Overview With modern industrial development, increasing environmental pollution, environmental protection is receiving increasing attention from all sectors of society and the importance of industrial gas pollution is a major source of environmental pollution, ESP as the prevention of industrial pollution in an effective way to Industrial emissions, through the provision of H.V electrostatic precipitator body, making the body through the flue gas ionization occurred, and charged dust in force under the electric field to a collecting campaign to re-use device for collecting dust. The collection has been widely used in electric power, metallurgy, building materials industries. ESP usually include ontology and control equipment consists of two parts, the ontology is the closed room for Industrial emissions dust through,it is a workplace for ESP, anode and cathode-ray board is an important part of the body, when the HV power supply to the anode and cathode-ray, there will be an Electric field between the Anode and cathode-ray, it makes the flue dust ionizate,the ionizating dust will moving to collecting board (cathode-ray board). The H.V control device suplly H.V DC power and such control for ESP. The H.V control device usually include H.V control cabinet and L.V control cabinet, H.V control by H.V rectifier device, include H.V control cabinet, H.V rectifier transformer, H.V switchgear, it responsible for ontology with power suplly, L.Vcontrol device incude L.V control cabinet and related executing agency, it responsible for ontology bolew: cathode rapping, anode rapping, porcelain axis heating, porcelain set heating, de-dust control etc.
Trang 1GGAJ02－JHB
ESP H.V Rectifier Device Use Manual
DA LIAN JIA HE INDUSTRIAL CONTROL TECHNOLOGY CO.,LTD.
Trang 2Safety manual
The manual includes installation, commissioning, operation.The meaning of the mark you must understand clearly blow:
！ DANGER It will result in death, serious harm to life or significant property damage,if you do not
take preventive measures
！ WARNING It may result death, serious harm to life or significant property damage,if you do not
take preventive measures
！ CAUTION It mar result light harm to life or property damage,if you do not preventive measures
Correct Application
Notice below:
DANGER
！ The device and its components can only be used to our product
The product performs their functions correctly and safely only through correct transport, restore, install and running, repairing by our proposed steps
Safety Notes
！ Warning Non-associated ESP staff to prohibit the operation of this equipment
Trang 3DANGER
！ Before you start the divice,please make sure there was no peoplein side the ESP body ,
HV switchgear and transformer and related system was on the correct stations,and the staff of power supply were evacuated Safety
Forbidding operating the main breaker after starting the device
！ DANGER Please cut off power supply before Commissioning
ATTENTION
Read the instruction manual before installation, commissioning, operation, repairing, and understand every part of the information
All Rights Reserved
Dalian jiahe industrial control technology CO.,LTD.copyright ©2008,All rights reserved.Without the express written authorization is prohibited to copy, transfer or use
of the manual or its contents.Rights reserved, including the right to retain all the patents, utility models exclusive
Solemnly Declare
We have checked this with the contents of the manual referred to in line with the hardware and software, but mistakes do happen and can not guarantee exactly the same The manual will be reviewed on a regular basis and in the next edition of the amendment, welcome to suggest improvements
WARNING
Not to read and understand the information provided in this statement may cause personal injury, product damage or bad operations To start with, or any steps before the operation, please read the complete chapter, and make sure to understand each chapter and section of the information
！
Trang 4The purpose
This manual is designed to provide GGAJ02-JHB ESP high-voltage rectifier equipment included H.V control cabinets, rectifier transformers, high voltage switchgear separation of functions and instructions In the appendix gives the wiring-related equipment, size, electrical schematics
The readers
This manual written for the operation and design staff of ESP device is applied to have the necessary basic knowledge of electrical system or learn more about ESP knowledge of the following persons:
z ESP installation, commissioning, maintenance, operation and maintenance personnel
z In the field of management, sales staff
Attention
In the appendix of the chart gives only part of the specifications of the equipment size and technical parameters For other specifications of the technical information, please contact our company
Address: No.41 torch road, High-tech zone, Dalian City
Trang 51 OVERVIEW 1
1.1 PRODUCT FEATURES 1
1.2 THE MAIN PURPOSE 2
1.3 THE SCOPE OF APPLICATION 2
1.4 PRODUCT MODEL 3
1.5 PRODUCT SPECIFICATIONS 3
1.5.1 60KV and 66KV device capability 4
1.5.2 72KV and 80KV device capability 5
1.5.3 90KV and 100KV device capability 6
1.6 WRKING ENVIRONMENT 7
1.7 WORKING CONDITIONS 7
2 STRUCTURE AND WORKING PRINCIPLE 8
2.1 THE WHOLE STRUCTURE AND WORKING PRINCIPLE 8
2.2 H.V CONTROL CABINET STRUCTURE AND WORKING PRINCIPLE 9
2.2.1 main loop 10
2.2.2 Control loop 10
3 TECHNICAL CHARACTERISTICS 16
3.1 MAIN CHARACTERISTICS 16
3.1.1 Control method 16
3.1.2 Equipment soft start function 17
3.1.3 Current limit control 17
3.1.4 High-impedance transformer 17
3.1.5 LCD display 17
3.1.6 History fault information query 18
3.1.7 Communication Network 18
3.1.8 Analog output 18
3.1.9 Reliability design 18
3.2 MAIN PARAMETERS 19
4 DIMENSION AND WEIGHT 21
4.1 H.V. CONTROL CABINET 21
4.1.1 GGAJ02-JHB-2 21
4.1.2 GGAJ02-JHB-D 22
4.2 H.V. RECTIFIER TRANSFORMER 22
Trang 64.2.1 Outdoors kind 23
4.2.2 Indoor kind 25
4.3 H.V. ISOLATION SWITCH CABINET 27
4.4 CONNECTION BETWEEN TRANSFORMER AND H.V. ISOLATION SWITCH CABINET 28
5 INSTALLATION AND DEBUGGING 29
5.1 INSTALLATION CONDITION AND TECHNICAL REQUIRMENT 29
5.2 INSTALLATION METHOD 29
5.3 INSTALLATION CHECKING 30
5.4 DEBUGGING EQUIPMENT 32
5.5 OPERATING EQUIPMENT 32
5.5.1 Debugging of Dummy Load 32
5.5.2 Debugging of Electric Field 33
5.5.3 Power supply in parallel of two high voltage units 33
5.5.4 Debugging for transformer’s tap 34
6 USE AND OPERATION 35
6.1 READY FOR USE AND SECURITY 35
6.2 OPERATE EQUIPMENT 35
6.2.1 Startup and stop 35
6.2.2 CON panel 36
6.2.3 Management purview is divided into three grades 38
6.2.4 Equipment common fault 39
6.3 EQUIPMENT MONITOR AND RECORD 39
7 FAILURE ANALYSIS AND TROUBLESHOOTING 40
8 EQUIPMENT MAINTENANCE AND LIFTING 41
8.1 MAINTENANCE OF UNIT 41
8.2 REPAIR OF UNIT 41
8.3 PROCEDURES FOR HANGING CORE OF OUTDOOR TRANSFORMER 42
8.4 LIFTING EQUIPMENT 42
9 ORDER NOTICE 43
9.1 UNIT CAPACITY, SPECIFICATIONS AND MODEL 43
9.2 INLET AND OUTLET DIRECTIONS OF HIGH-VOLTAGE ISOLATION SWITCH CABINET 43
9.3 OTHER SPECIAL REQUIREMENTS 43
10 ANNEX A 44
Trang 71 Overview
With modern industrial development, increasing environmental pollution, environmental protection
is receiving increasing attention from all sectors of society and the importance of industrial gas pollution is a major source of environmental pollution, ESP as the prevention of industrial pollution
in an effective way to Industrial emissions, through the provision of H.V electrostatic precipitator body, making the body through the flue gas ionization occurred, and charged dust in force under the electric field to a collecting campaign to re-use device for collecting dust The collection has been widely used in electric power, metallurgy, building materials industries
ESP usually include ontology and control equipment consists of two parts, the ontology is the closed room for Industrial emissions dust through,it is a workplace for ESP, anode and cathode-ray board is an important part of the body, when the HV power supply to the anode and cathode-ray, there will be an Electric field between the Anode and cathode-ray, it makes the flue dust ionizate,the ionizating dust will moving to collecting board (cathode-ray board) The H.V control device suplly H.V DC power and such control for ESP The H.V control device usually include H.V control cabinet and L.V control cabinet, H.V control by H.V rectifier device, include H.V control cabinet, H.V rectifier transformer, H.V switchgear, it responsible for ontology with power suplly, L.Vcontrol device incude L.V control cabinet and relatedexecuting agency, it responsible for ontology bolew: cathode rapping, anode rapping, porcelain axisheating, porcelain set heating, de-dust control etc
GGAJ02-JHB（referred to as JHB）ESP H.V rectifier control device was developed on the base of
WA and JHA product, it has greatly improved in the real-time control, communicate, human-operation
1.1 Product Features
GGAJ02-JHB ESP H.V rectifier device has the following characteristics:
z The CPU of the main control board is an ARM 32bit processor, main frequency is 44MHz, the instruction speed is 22ns
z Use 5.7-inch LCD display, operation simple and parameters show in detail
z Communicate supports CAN and RS485
z Both software and hardware have self-test function
z Low voltage rapping function, Energy Conservation
z Two loops standard 4-20mA output, choice once current/voltage, secondary current/voltage
Trang 8z Use watchdog design, to protect the CPU beyond death at any situation
z All I / O ports, communications ports are over-current, over-voltage protection
z With the calendar clock
z Power isolation design, enhance system reliability
z Current and voltege signal use high-speed sampling after isolation, wave clearly, spark detecyion and control in a timely manner
z Main loop, safety lock, run/stop, trigger power locked by hardware and software, to ensure the mistake does not trigger the SCR trigger
z Synchronous signal detection has anti-jamming design and phase compensation by hardware and software, to ensure the accuracy of detection
z Hardware over current detection and software voer current detection are independent of each other, to ensure reliable detection of over-current
z Use high impedance transformer, to improve the output voltage waveform, to avoid short-circuit load, the spark breakdown at the time of the impact of over-current
z Soft start design, to avoid rapid step-up equipment on the impact
z Support automatic / manual mode step-up, in auto mode, set the Current primary, the voltage secondary, the turn-on angle setting, turn-on angle to limit the maximum value at the same time to participate in the four control, with a current limit control features
z Secondary current display, real-time secondary voltage curve display, V-I sampling curve display
z Failures history inquiry, include the type of fault and Failure happened time
z Data history inquiry, include primary current, primary voltage, secondary current, secondary voltage
1.2 The main purpose
GGAJ02-JHB ESP H.V rectifier device should match ontology, it provides ontology with H.V DC power, for industrial gas purification, it was a very important device
1.3 The scope of application
GGAJ02-JHB ESP H.V rectifier device should match ontology, applies to the following range:
z Electric power industry: the boiler flue dust
z Metallurgical industry: black, non-ferrous metal smelting of dust, metal smelting materials recycling
z Building materials: industry cement, the production of refractory materials in the dust
Trang 9removal and recycling of raw materials
z The chemical industry demist, dedust and recycling the useful components of the
Industrial emissions dust
z Petrochemical industry: separate the salt, water or other impurities from crude oil
z Textile industry: recycling the alkali in the proccing of textile production and dedust
z Paper-making industry: recycling the alkali in the proccing of paper-making production
The product composition and significance as follows:
duct specifications deviding as its rating secondary voltage
GGAJ02-JHB H.V rectifier device Pro
and rating secondary current,it is the capability of the device,Rating voltage is divided into six
level :60KV,66KV,72KV,80KV,90KV,100KV,Each level H.V rectifier transformer has three wiring
poles:A-X1,A-X2,A-X3,There are three different secondary voltage ouput.Rating current is from
0.1A to 2.0A step 0.1A For example as follows:
Product model is :GGAJ02－1.0 A / 72 KV－JHB－
z Rating secondary voltage is 72KV
Trang 10z Rating secondary current is 1.0A
1.5.1 60KV and 66KV device capability
ice capability as shown in table 1
60KV 66KV
GGAJ02-JHB H.V rectifier device 60KV and 66KV dev
Table 1 60KV and 66KV device capability
Secondary voltage (KV) Secondary current (A)
Trang 111.5.2 72KV and 80KV device capability
GGAJ02-JHB H.V rectifier device 72KV and 80KV device capability as shown in table 2
V device capability
72KV 80KV Table 2 72KV and 80K
capability
（Unit A） Primary current
（A）
t power
（
V V-1 cable
Secondary voltage（KV Secondary ） current（KV ）
Trang 121.5.3 90KV and 100KV device capability
GGAJ02-JHB H.V rectifier device 90KV and 100KV device capability as shown in table 3
device capability
100KV
Table 3 90KV and 100KV
90KV capability
（Unit A） Primary current
（A）
t power
Trang 133） Anti-vibration and tilt: No strong vibration and shock, the vertical gradient is less than 5°
If you want the product works in the special conditiont, please order with manufacturer
1） Input AC power: single-p
4 The H.V control cabinet, H.V rectifier transformer
any climate, the grounding resistance must below 2Ω
ATTENTION
links
！
Trang 142 Structure and working principle
2.1 The whole Structure and working principle
The whole structure of JHB H.V rectifier device includes three ports: H.V control cabinet, H.V rectifier transformer, H.V switchgear, the working princple is shown in picture 1
Picture 1 JHB H.V rectifier device working princple After the power (AC 380V) through the main breaker (QF1) of the H.V control cabinet, it had been regulated voltage by anti-parallel SCR (V1, V2), re-export to the high-voltage rectifier transformer primary ciol, through the high-voltage transformer rectifier boost, after transform rectifier, a negative high-voltage output in the secondary, and then through the high-voltage switchgear and isolation body connected to the body in order to supply the electric field The H.V control cabinet control the trigger of SCR (V1 and V2), and then control the input voltege of tranformer, tranformer suplly ontology changes of the voltage
Trang 152.2 H.V control cabinet Structure and working principle
H.V control cabinet as a whole is the core of JHB-H.V rectifier device,and CON is a core of H.V control cabinet,it is the Central processing unit.H.V control cabinet include mian loop and control loop two ports,main loop include main loop unit,main loop Copper row and protection device,control loop includesignal board,trigger board,signal smpling board,CON unit,control loop power,relay unit,Service circuit
The H.V control cabinet working princple as shown in picture 2
a Front b front inside c Main loop unit d back e back inside
Picture 2 H.V control cabinet Structure
8
5
38
9 2 22
21 3
10
35 11
1 Main loop unit 2 Input copper row 3 Ouput copper row
4 Main breaker QF1 5 SCR models 6 RC absorption resistance
7 RC absorption Capacitance 8 SCR heat sink 9 Input protect device
10 Output protect device 11.heat sink fan
12 CON 13.Signal and trigger unit 14.Relay unit
15.Control loop breaker QF2 16.Fuse 17.TR.TC1（380:220）
18.TR.TC2（220:15） 19 24V power supply 20.Control power box
21 Current transformer 22.voltage sampling TR 23.Secondary sampling unit
24 Primary ammeter 25 Primary voltage meter 26.Secondary ammeter
27 Secondary voltage meter 28 Failure light 29.main loop power on light
30 Alarm 31 Start button 32 Stop button
33 Local / manual switch 34.Grounding row 35.Grounding pole
Trang 1636 Lighting 37 Overhaul power socket 38.Dust defend cover 2.2.1 main loop
The power supply (AC380V) connects to the copper row (L1 and L2), through main breaker QF1, it had been regulated voltage by anti-parallel SCR (V1, V2), SCR connect to H.V rectifier transformer at primary side by the out wire There is a RC absorptiondevice In parallel on SCR, the device can absorpte peak voltage and protect SCR.There are two Varistors (RV1 and RV2) at input /output, they absorpte peak voltage above 1000V It usually has a compensate resistance then the capability is bolew 0.5A, it used to maintain a fixed current for SCR.Heat sink and fan for cooling SCR
2.2.2 Control loop
（1） Signal conditioning and trigger unit
Signal conditioning and triggers unit is used to smply primary current, primary voltage, and hardware over-current detection, the unit also sends the trigger signal from the CON unit to trigger pulse transformer isolation after output in order to trigger the SCR V1 and V2
（2） Primary current sampling
After a main loop current transformer sampling, 0~5A output signal to trigger and signal conditioning unit, then the 0~5A signal changed into two groups 0~250mA signal by current-reduce transformer, one group signal used for over-current detection by hardware, another group signal is rectified and chaged into DC current signal, the DC current signal flows in the sampling resistance and then get a 0~300mV voltage signal, input the CON unit
（3） Primary voltage sampling
The ouput voltage of SCR connect to transformer TC3, then the voltage reduce to 0~11V voltage signal, the signal input the signal conditioning and triggers unit, after choke coils and full-wave rectifier, voltage separate resistance, we get a 0~300mV signal into the CON unit
（4） Hardware over-current detection
Signal conditioning and trigger unit has a hardware over-current detection circuit, it detects the primary current, if the current is over the rating value, the relay KD4 power on, and the main loop breaker QF1 will be released by itssolenoid coils, QF1 disconnect, power supply cut off to protect the device The switch signal of over-current input the CON unit at the same time, in order to CON unit detecting
（5） SCR trigger driver
Trang 17Signal conditioning and trigger unit receive two groups trigger signal form CON unit, after pulse transformer isolation, driver the SCR V1 and V2, controlled the output voltage
（ 6） Secondary signal sampling unit
This unit sampling signal secondary current, secondary voltage, sampling resistance R25 and R26
in parallel, this circuit changes the secondary current to 0~300mV voltage signal, and then the signal input CON unit The secondary voltage sampling resistance R27 with the resistance RM voltage divided to be carried out 0~300mV of the second sample voltage signal, input CON unit The diode 1N5408 of the sampling unit as same as the diode of the diode unit, the protective effect
of diode make you away from H.V, avoid danger, the secondary signal sampling unit install inside the H.V control cabinet, the diode protectin unit install at the output of H.V rectifier transformer’s secondary signal sampling
（7） Control loop power supply
AC400V power connect from power grid, through breaker QF2 and fuse FU1, FU2, connect to TR TC1, TC1 ouput two groups AC220V power, one is the H.V control cabinet, fan, solenoid coils, relay KA1 and KA2‘s power supply Another is the control power box, DC24V power, and CON analog circuits unit‘s power supply
Control power box output three groups power, include AC15V, AC12V AC and DC12V AC15V suppply power for signal conditioning and trigger unit AC12V supply power for CON digital part, communicate part and DA ouput part DC12V supplies power for trigger circuit between CON trigger part and trigger unit from signal conditioning and trigger unit Three sets of power are mutual isolation
DC24V supply power for relay unit (KD1-KD6,K A3), CON switch I/O part (fault input, safety switch input, alarm ouput, start/stop output)
TC2 supply AC15V power, AC15V is the power of CON analog circuits, phase and synchronous signal also comes from the power
CON is the control core of the H.V control cabinet, when the control loop power is on, CON analog circuits produces phase and synchronous signal, and sends it to the CON digital circuit, CPU of the CON digital circuit sampling the primary current, primary voltage ,secondary current secondary voltage signal by A/D converter at the same time.and then press start button,the H.V control cabinet start, CON according to the pre-set parameters and feedback signals, closed loop feedback-controll, CPU calculates the trigger turn-on angle next cycle wave, timings the trigger
Trang 18angle and to control the SCR trigger signal, and then control the output voltage of SCR CON can detectes the spark happened in the ontology field by feedback signal, when the spark happening, the programme get into spark closed loop feedback-controll CON includes 5 ports, analog circuits part, digtal part, trigger part, communicate and D/A output part, switch I/O signal part, all of the parts using isolation design, CON working princple is shown in picture 6
1) Analog circuits part
Primary current, primary voltage, secondary current, secondary voltage, turbidity sampling signals deal with input filtering and amplification RMS filter, for AD conversion, in order to calculation of RMS and turbidity control, at the same time, primary current, secondary sampling signal had been amplified and filtered before linear optocoupler, the signal ouput of linear optocoupler connect to the control CPU, using the CPU high-speed AD conversion to converse primary current, secondary voltage, control CPU use the data of the result to detect spark Besides, phase and synchronous signal also comes from the power analog circuits
2) Digital ciicuit part
CON use double 32-bit ARM CPU, LPC2132 and LPC2129,both main frequence is 44MHz, 22ns command speed, LPC2132 used to control voltage output ,LPC2129 used to control LCD, key, communicate networks and HMI, as well as historical data storage, calendar clock count LPC2132 control spark by the signal of primary current and secondary voltage sampling,support spark rate set.support manual/automatic control model, at automatic model, control with the value primary current set, secondary voltage set, trigger angle set,max trigger angel set at same time, has current limit control CPU and detect H.V rectifier transformer faut, ontology field faut, device faut and also can protect the system by cutoff the related power, fault for exampleontology field open circuit, short circuit, abnormal excitation, oil temperature high, oil Limits temperature, limits gas, light gas, oil serface has safety lock function, in order to ensure personal safety.when the fault happend, there will generate a report to store
LPC2129 control a 5.7-inch LCD, LPC2132 and the LCD communicate data, LCD display the running data, support history fault Query and history data store, 32K primary current /voltage, secondary current/voltage data store space
3) Trigger unit
The trigger unit of CON power supply seperate, LPC2132 send trigger pulse signal to isolation Optocoupler, the output signal of isolation optocoupler into MC1413, and then into signal conditioning and trigger unit, then through pulse transformer the signal get into SCR finally, two loops trigger output have over-voltage protect
Trang 194) Communicate and D/A unit
Support CAN bus and RS485 communication, the highest rates of CAN bus is 500Kbps, the highest rates of RS485 is 115.2Kbps, support the standard communication protocol Modbus ASCII/RTU, have 2 loops Isolated analog output, output 4~20mA signal, the signal can choose primary current /voltage, secondary current/voltage
Trang 20Filtering enlargeFiltering enlargeFiltering enlargeFiltering enlarge
AD
converters
2.5V Precision power
Output filtering
DA output1
DA output2
CPU LPC2129
Reset MAX809
LED
Key
LCD
High-speed Optocoupler
CAN busMCP2551
CAN COM
High-speed Optocoupler
RS485 MAX485
Ready Run/Stop Fault alarm Start Stop
voltage regulator
+5V-5VAnalog power
voltage regulator+5V
DA and COM power
volt
regulator age
AC220V input +24V
Digital outputpower
I/O part
I/O port
DA Communication and
Trang 215) Switch I/O signal unit
The signal of this unit includes H.V rectifier transformer fault, start/stop input etc, and alarm, control output etc DI has a hardware filter can effectively prevent the jitter signal The control output and alarm output are perfect over-current over-voltage protection
Trang 221) Sparks track model
When ontology field produce spark breakdown, in order to avoid short-current, cutoff the SCR, quickly restored to 90% of the original breakdown voltage at several cycle-wave, and then approach the original breakdown voltage slowly, the characteristics are called second-line spark track, this model of control is a very good approach to the restoration of media curve, and also guarantes the maximum output power
2) Sparks rate track model
CON controls spark rate at setting spark rate
3) Reduce-voltage rapping
H.V control cabinet and L.V control cabinet works together, when rapping, the PLC cabinet(L.V control cabinet) sends a signal to H.V control cabinet, if the CON of H.V control cabinet detects the signal of rapping, it reduces the output voltage by controlling SCR, and when the rapping over, it restorate voltage to original value
4) Turbidity feedback control
In order to achieve the concentration of gas emissions required by environmental protection departments of the concentration of dust emission standards, and also can reduce power consumption as much as possible, CON with the dust concentration monitor support for achieving the concentration of dust on the closed-loop control
5) Fualt running
Debugging equipment, by setting the master switch with dial code, the device can run a short period of time with the fault which includes open-circuit running and short-current runnig When open-circuit, equipment detects open-circuit failure, only the alarm, non-stop machine When short-current, equipment detects short-current failure, only the alarm, non-stop machine At the same time equipment allow running at short-current and open-circuit, but in any case, rquipment will detect over-current, if over-current, alarm, stop equipment immediately, and drive coil excitation, make the main breaker cut off
By setting, equipment can also run on a current rating of 110% and 115% both cases
Trang 23The equipment has sef-test function, when the control power on, it will detect A/D converter, current and voltage signal sampling, transformer failure, the main circuit connection, the security chain of 5 parts of the self-test hardware, the programme will sef-test the parameters of Flash ROM store, only software and hardware self-test success, the equipment can start
3.1.2 Equipment soft start function
Our machine can soft start, and angle of trip pin largen gradully during the system power on, voltage promote, voltage drop, rapping, recover and other normal voltage promote process, it makes voltage largen gradully, and this process avoids system damaged by voltage promote rapidly, increase the voltage from 0 to rating, that is mean increase trigger angle from 0 to 153, it needs 10 seconds, when the trigger angle greater than or equal to 27, SCR begin to work
3.1.3 Current limit control
Ontology field short-current,breakdown sparksmake the current sharp rise, in order to make it no more than ratings, to take control of the current limit, to ensure that in any case conditions, the second largest of the current restrictions limit the rating of its equipment to ensure safe and stable operation of equipment
3.1.4 High-impedance transformer
In order to avoid short-current, caused by the breakdown spark of equipment over-current shocks, and to improve the rectifier output voltage waveform, to increase power corona, H.V transformer rectifier high-impedance design, the impedance of transformer is 35%~40%, H.V rectifier transformer silicon avalanche high-pressure reactor using silicon reactor, the ability to shock, the reverse will automatically resume after breakdown
3.1.5 LCD display
The equipment uses 5.7-inch 320×240 LCD,built-in LCD controller there is a 512K byte, font ROM code, you can display Chinese fonts, the number of symbols, such as letters and Britain on owen, and also a two page display cache In the text mode, to receive the standard Chinese language code directly to display Chinese without having to enter the graphics mode to the drawing depicts it can greatly save time for the microprocessor to improve the efficiency of liquid crystal display Chinese characters.LCD screen is simple, rich show, it has data display in time, V-A sampling, Historical data, Historical fault, sef-test, run parameters set, real-time data calibration, product mamual, contact the company a total of 8 major categories show, In-time data, real-time display screen can show primary current, primary voltage, secondary current, secondary
Trang 24voltage, trigger angle, spark rate, trigger angle set, spark rate set, run state, control model, calendar clock, etc and show the secondary current, secondary voltage curve
3.1.6 History fault information query
CON can see the history of fault information, including the history and types of failures occur at all times, 32K flash can also be stored historical data, each time record of 30 minutes, can be recorded successive 85 days of data, include primary current, primary voltage, secondary current, secndary voltage, after the overflow storage, now data will cover the earliest data, and can view historical data curve
3.1.7 Communication Network
The device supports CAN bus and RS485 comunication, the highest rates of CAN bus is 500Kbps, the highest rates of RS485 is 500Kbps is 115.2Kbps, supports the standard communication protocolModbus ASCII/RTU, the median data, parity check, stop bits, and other communications format can be set up
3.1.8 Analog output
CON has two loops analog output, it output 4~20mA standard signal, send content is two of primary current,primary voltage,secondary current, secondary voltage signal, when connect with control, it can avoid the use of separate transmitter.
3.1.9 Reliability design
Various measures have been adopted to improve the reliability of the H.V rectifier device
z H.V rectifier transformer, H.V control cabinet has called for a reliable connection with the earth, groud resistance must be below 4Ω, and connect with ontology grouding
z All of secondary signal sampling hava protection by diode, the protection diode prevents the string of High-voltage into the control cabinet, secondary sampling signal transmission by RVVP Shielding wire
z CON design using watchdog to ensure that the CPU is not under any circumstances death
z All of the I/O port and commnication port have over-current and over voltage protection
z All of the Power supply design, analog, digital, communications and so on, the part of the power to trigger are mutual isolation
z Main loop switch, safety lock, start/stop, trigger power supply has hardware lock, to ensure the mistake does not trigger SCR
Trang 25z Synchronous signal detection has multiple anti-jamming designs and phase compensation, and a combination of hardware and software to ensure the accuracy of detection
z Hardware and software over-current detect independent of each other, ensure over-current detect reliable, when it is over-current,the main loop breaker QF1 will cut off 3.2 Main parameters
1) Input voltage: 380V ± 10%
2) Power supply frequence: 50Hz ± 2% or 60Hz ± 2%
3) Output voltage: 0~100% rating voltage
4) Output current: 0~100% rating current
5) Trugger angle : 0~153
6) Spark rate set: 10 times /min ~ 120 times/min
7) Communication ports: CAN bus port and RS485 port
8) Communicate rate:
z CAN bus:the highest rates of CAN bus is 500Kbps
z RS485:support 1200 bps,2400 bps,4800 bps,9600 bps,19200 bps,38400bps,57600 bps,115200 bps
9) Working model: Allows continuous operation under the rating current
10) Cooling: Cabinet cooling by air, H.V rectifier transformer cooling by oil inside
11) Protection level: the Protection level of control cabinet is IP52, the protection level of H.V rectifier transformer is IP54
12) H.V rectifier transformer parameters
z Input voltage : 0 ~ AC400V
z Output voltage: Rating DC voltage（Unit:KV）is 60,66,72,80,90,100
z Output voltage: Rating output current （Unit:A）is 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 1.0, 1.2, 1.4, 1.6, 1.8, 2.0
z Impedance of the voltage: 30%~40%
z Transformer Oil : 25# oil ,pressure value more then 40KV/2.5mm
z Sampling resistance: secondary voltage is 5.00KΩ,Secondary current is 2.00KΩ
z Negative H.V to grouding: the value of positive resistance is zero, the negative resistance is 52/65/78 MΩ
z Insulation resistance:
¾ Primary side to grouding :≥ 100MΩ