Picture
D multi-functional single-phase DC panel power converter
1: Introduction to D DC panel
:
DC panel
is the abbreviation of DC power operating system
. The general name is intelligent maintenance-free DC power supply screen, and the general model of DC screen is D. DC panels are suitable for use in power distribution rooms of substations, power plants, high-rise buildings, residential areas, etc., as well as small self-contained power plants as the operation, control power supply and emergency lighting power supply for high-voltage switches, relay protection, automatic devices, control systems, etc. It can also be used in other places that require DC power supply (such as petrochemical, mining, railway, etc.). The DC panel consists of an AC and DC power distribution unit, a charging module unit, a step-down silicon chain unit, a DC feed unit, a power distribution monitoring unit, a monitoring module unit and an insulation monitoring unit.
2: Working principle of DC screen
Simply put, DC screen is a device that provides stable DC power supply.
The two-channel mains power of the DC panel inputs one AC through the dual-channel AC switching device to supply power to each charging module. The DC panel charging module converts the input three-phase/single-phase AC power into DC power to charge the battery and at the same time supply power to the closing load. In addition, the closing bus supplies power to the control bus through the voltage reduction device. When the mains power is outage or abnormal, the battery discharges emergency power supply. Each basic monitoring unit in the DC panel system is managed and controlled by the main monitoring unit. The information collected by each basic monitoring unit is sent to the main monitoring unit for unified management through communication lines. . The main monitor displays various information of the DC system. Users can also touch the display screen to query information and operating system information, and can also access the remote monitoring system.
In addition to basic AC monitoring, DC monitoring, and switch monitoring, the DC panel can also be configured with insulation monitoring and battery inspection functions to comprehensively monitor the DC system.
Three: Main features of Zhilian Shengda DC screen
This product complies with the general technical requirements for DC power supply equipment in power engineering.
This product complies with the technical regulations for DC system design in power engineering.
High reliability:
Using modular design of switching power supply + hot backup.
The charging module can be hot-swapped while powered, which greatly reduces the average maintenance time.
The power bus and control bus can be directly powered by the charging module alone and can be hot-backed up through the voltage reduction device.
, The maximum imbalance of output current between modules with hardware low-difference independent current sharing technology is better than %.
1: Introduction to D DC screen
DC screen
is the abbreviation of DC power operating system
. The general name is intelligent maintenance-free DC power supply screen, and the general model of DC screen is D. DC panels are suitable for use in power distribution rooms of substations, power plants, high-rise buildings, residential areas, etc., as well as small self-contained power plants as operation, control power supply and emergency lighting power supply for high-voltage switches, relay protection, automatic devices, control systems, etc. It can also be used in other places that require DC power supply (such as petrochemical, mining, railway, etc.). The DC panel consists of an AC and DC power distribution unit, a charging module unit, a step-down silicon chain unit, a DC feed unit, a power distribution monitoring unit, a monitoring module unit and an insulation monitoring unit.
2: Working principle of DC screen
Simply put, DC screen is a device that provides stable DC power supply.
The two-channel mains power of the DC panel inputs one AC through the dual-channel AC switching device to supply power to each charging module. The DC panel charging module converts the input three-phase/single-phase alternating current into direct current to charge the battery and at the same time supply power to the closing load. In addition, the closing bus supplies power to the control bus through the voltage reduction device. When the mains power is outage or abnormal, the battery discharges emergency power supply. Each basic monitoring unit in the DC panel system is managed and controlled by the main monitoring unit. The information collected by each basic monitoring unit is sent to the main monitoring unit for unified management through communication lines. . The main monitor displays various information of the DC system. Users can also touch the display screen to query information and operating system information, and can also access the remote monitoring system.
In addition to basic AC monitoring, DC monitoring, and switch monitoring, the DC panel can also be configured with insulation monitoring and battery inspection functions to comprehensively monitor the DC system.
Three: Main features of Zhilian Shengda DC screen
This product complies with the general technical requirements for DC power supply equipment in power engineering.
This product complies with the technical regulations for DC system design in power engineering.
High reliability:
Using modular design of switching power supply + hot backup.
The charging module can be hot-swapped while powered, which greatly reduces the average maintenance time.
The power bus and control bus can be directly powered by the charging module alone and can be hot-backed up through the voltage reduction device.
, The maximum imbalance of output current between modules with hardware low-difference independent current sharing technology is better than %.
, Reliable lightning protection and electrical insulation measures. The optional insulation monitoring device can monitor the insulation condition of the system in real time to ensure system and personal safety.
The system design adopts (International Electrotechnical Commission
) and other international standards, and the reliability and safety are fully guaranteed.
Highly intelligent
The monitoring module uses a large-screen LCD with Chinese characters to display audible and visual alarms.
The parameters of each part of the system can be set through the monitoring module. The module has the function of smoothly adjusting the output voltage and current and has the function of battery charging temperature compensation.
The combination of modern power electronics and computer network technology
provides support for telemetry, remote control, remote signaling and remote adjustment of the power system
to achieve unattended operation.
Battery automatic management and protection automatically detects the battery's terminal voltage, charging and discharging current in real time, and intelligently controls the battery's floating charge. It is equipped with audible and visual alarms for battery over-under voltage and charging over-current.
The system uses a monitoring device with built-in insulation monitoring, battery detection, grounding line selection, battery activation, silicon chain voltage regulation, central signal and other functional units to greatly facilitate user use
Four: DC screen technical description
<= dd project name
Technical specifications
=> AC input
Voltage range
%
Frequency range
%
=> DC output< br/> Rated voltage (D)
/
Voltage adjustment range (D)
Rated current (D)
Output current limiting range
/> %-%
Voltage stabilization accuracy
.%
Stable flow accuracy
.%
Ripple coefficient
.%
Conversion efficiency (Full load output)
Dynamic response (load%-%)
Recovery time overshoot %
=> Environmental conditions
Insulation strength
Noise
Working environment temperature
-℃～+℃
Transportation and storage temperature
-～
℃
Humidity
-% no condensation
Protection function
Output overvoltage protection, output current limiting protection, output short circuit protection, overtemperature protection module, parallel protection, overcurrent protection
Cabinet description:
Cabinet front Behind the entire glass door are double doors with a beautiful and elegant appearance
★ The cabinet structure design facilitates equipment installation, debugging, maintenance, inspection and operation.
★ The overall dimensions are available in two conventional standard specifications (height, width and depth) and non-standard cabinets can be customized according to user needs.
GZDW200A multifunctional single-phase DC panel power supply AC220V to 220V