Detail

Microcomputer controlled DC power supply panel GLB-GZDW-2/3/4 aredesigned for various electrical capacity equipment users, of which the systemconfiguration is composed of monitoring module, rectifier module, AC/DCmonitoring module, insulation monitoring module, the battery inspection module,switch quantity monitoring module, voltage reduction module, power distributionunit, accumulator and cabinets. They have the characteristic of“simpleoperation, intelligent management and high efficiency and energy saving.”

They are applicablefor field of electrical power, communication, transportation, chemicalindustry, metallurgy, military, medical treatment, construction, fireprotection, etc. and users terminal. It can be used as operating power supplyand control power supply for high voltage switch, relay protection and automaticdevice

GLB-GZDW-2：

1) With two – way AC input automatic switching toensure the normal operation of the system；

2) The input voltage with wide range, the power grid iswell-adapted；

3) With HZ-JK02B monitoring, LCD screen, Chinese menu,friendly and plentiful interface, the operation of the keys is simple andconvenient；

4) With comprehensive system setup, operationinformation inquiry and various alarm functions；

5) With Intelligent battery charge and dischargemanagement and perfect reliable temperature compensation function；

6)expandable battery inspection single set of 110 sections, insulation inspectionof 30 ways, switch quantity inspection of 32 ways

7) The system uses multi-level password authoritymanagement to limit the operation of unauthorized personnel and ensure the safeand reliable operation of the system ；

8) The built-in RS232、RS485 communication interface have the function of  operating “telemetry,telecontrol, telecommand, tele-regulating”towardssystem through background monitoring and remote monitoring to realizeunattended operation；

9) Support four communication protocol options of RTU, CDT, MODBUS。

GLB-GZDW-3：

1) With two – way AC input automatic switching toensure the normal operation of the system；

2) The input voltage with wide range, the power grid iswell-adapted；

3) With HZ-JK03 monitoring. The 5.7-inch touch screendisplay with Chinese interface, man-machine friendly interface and touchoperation；

4) With comprehensive system setup, operationinformation inquiry and various alarm functions；

5) With Intelligentbattery charge and discharge management and perfect reliable temperaturecompensation function；

6) Rectifier module with electric plug, easy and fastdaily maintenance；

7) expandable battery inspection dual sets of 110sections, insulation inspection of 240 ways, switch quantity inspection of 160ways, compatible with communication power module, inverter power module and DCconversion module

8) The system uses multi-level password authoritymanagement to limit the operation of unauthorized personnel and ensure the safeand reliable operation of the system；

9) The built-in RS232、RS485 communication interface have the function of  operating “telemetry,telecontrol, telecommand, tele-regulating”towardssystem through background monitoring and remote monitoring to realizeunattended operation；

10) Support four communication protocol options of RTU, CDT, MODBUS。

GLB-GZDW-4：

1) With two – way AC input automatic switching toensure the normal operation of the system；

2) The input voltage with wide range, the power grid iswell-adapted；

3) With HZ-JK04 monitoring, new configuration software,color 7-inch (10.4-inch) LCD display with touch operation, 32-bit true colordisplay, quick refresh speed, intuitive and humanized design which can work fora long time in the state of long light with Perfect human voice alarm system；

4) With comprehensivesystem setup, operation information inquiry and various alarm functions；

5) With Intelligent battery charge and dischargemanagement and perfect reliable temperature compensation function；

6) Rectifier module with electricplug, easy and fast daily maintenance；

7) With Controllable rectifier module up to 26 sets, expandable AC/DCinspection of 2 units, insulation inspection of 240 ways, battery inspectiondual sets of 110 sections, switch quantity inspection of 160 ways, compatiblewith inverter module and DC conversion module.

8) With 32M super storage space, the system has built-inUSB interface, with multiple printout system；

9)The system uses multi-level password authoritymanagement to limit the operation of unauthorized personnel and ensure the safeand reliable operation of the system；

10) The built-in RS232、RS485 communication interface have the function of  operating “telemetry,telecontrol, telecommand, tele-regulating”towardssystem through background monitoring and remote monitoring to realizeunattended operation；

11) Support four communication protocol options of RTU, CDT, MODBUS, IEC；

12) According to the needs of users, the system can be customized to add thefunctions of  image-text display and GPSSMS alarm。

MainParameter：

Environmentalcondition：

1) Altitude: not more than 2000 meters ；

2) Environment temperature: -10℃~+40℃；

3) Relative humidity: ≤90％(25℃) ；

4) Seismic intensity: not more than 8℃；

5) Equipment is limited to indoorwork with good ventilation；

6) The room should be free of corrode metal and harmful gases that damageinsulation；

7) Install vertical inclination: not more than 5℃；

8 The micro-controller for noiseresistant: 1000V 1μs pulse for 1minute；

9) With no strong electromagnetic interferenceand violent vibration。

System Configuration

2) Monitoring module selection

3) Rectifier module selection

① Currentcalculation

The configuration of the rectifier module is mainlydetermined by the maximum constant load current and battery charging currentC10(battery capacity). The total rated output current of all modules should begreater than or equal to the sum of the maximum constant load current andbattery charging current of the system。IfN+1 redundancy is to be realized, one more module should be added on the basisof the original number

② Thenumber calculation

The number of rectifier moduleconfiguration is calculated according to the following two formulas.Control bus without rectifier module：

4) functional module selection

Switch quantity monitoring moduleGLB -JD0132 way ×5Voltage reduction moduleGLB -GL0320-100A Inverter moduleGLB -NB1-6KVAConfigure according to user’s requirementsDC conversion moduleGLB 24S/48S24/48VDCInsulation detector  Please refer to the random instruction for details.Battery inspection instrument  signal alarm device

Distribution unit section

(1) Thestandard configuration is the input ac second circuit, the output dc controlpower supply bus under 65 Ah is 3 circuit, the closing power supply bus is ircuit, the output dc control bus is 5 circuit and the closing power supplybus is 5 circuit, the current voltmeter is the pointer board meter。

(2) The configuration can be customized according to user’s requirements。

6) battery selection

① Type selection

Thestandard configuration is lead-acid batteries。

② quantity configuration

③ capacity calculation

Thecapacity of the battery is determined by the maximum instantaneous load of thesystem which are in the state of power failure, and the surplus must beappropriately increased in combination with the actual situation.The systemload is divided into constant load (Izc), emergency load (Isg) and impact load(Ihz).The constant load mainly includes the frequently charged relay, signallamp and other electrical equipment connected to the DC system. The emergencyload is the load that must be power supplied by the dc system when the power iscut off due to the loss of ac power in the power substation, mainly foraccident lighting.Theimpact load is mainly the sum of the borne loads of which the short (0.1~ 0.5s)closing impact current and with its DC bus.The maximum instantaneous load is the sum of the above threeloads, namely the maximum instantaneous load of the battery Imax=Izc+Isg+Ihz,then the battery capacity =Imax/ battery discharge rate * reserve coefficient(Ah)。

(1) Thedischarge rate of maintenance-free lead-acid batteries is usually 0.1。

(2) The above calculation method can achieve the continuous discharge for 1hour of the system which is in the state of power failure。

(3) The remainingbattery capacity shall not be less than 25 of the rated capacity to avoid excessive discharge ofbattery when thebattery is closed at the end of discharge。

(4) Considering thedecaying capacity at the end of battery aging, the reserve coefficient of 1.2is generally chosen。

7) The choice for the cabinet body

① model selection guide of cabinet body

The structure, color and specifications can be customizedaccording to users’requirements。

② surface counting

(1) Theconfiguration surface quantity of the cabinet body depends on the number ofmodules, feeder circuit number, battery capacity and dc voltage, etc. The abovecalculation is for reference only。

(2) The batteries with a capacity above 200Ah can be installed bybattery rack

8) please refer to the page link for the instruction of system installation,commissioning, using and breakdown maintenance,

9) please refer to the page link for the instruction of batteryinstallation, using and maintaining