UPS/Inverter Solution for Substation (Figure)-EEWORLD

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Solution 1: LDC MP series industrial UPS / inverter

for power Addison LDC MP series is a UPS/inverter designed for power plants and substations in China. It adopts AC/DC dual input and does not require the purchase of a separate battery pack. It is a power solution with low cost and high efficiency, and is easy to maintain and manage, providing a safe, reliable and intelligent power supply system.

System block diagram

● System composition
※ UPS body
Includes: input isolation transformer, output isolation transformer, rectifier, inverter, static bypass switch, manual maintenance switch, DC isolation diode , control unit, display unit, etc.
※ Bypass isolation voltage regulator cabinet (optional)
includes: isolation transformer, voltage regulator, control instrument, etc.
※ Distribution cabinet
Customized according to the requirements of the design institute
● UPS system features
※ Using DSP control technology and IGBT components to greatly improve the reliability of the system
※ Using unique parallel technology to achieve multiple parallel connections
※ AC input, output, bypass super isolation
※ Strong overload capacity and anti-interference ability
※ Ultra-wide AC input voltage range 145V~315VAC
※ Ultra-wide AC input frequency range 45Hz~65Hz
※ Two-stage phase-locked loop automatic tracking is fully compatible with generators
※ Special five-stage overload protection and fixed power design, more suitable for various types of loads
※ Chinese LCD display (optional)
※ No surge current when starting
※ 24-hour remote automatic repair service
※ The single control PC board design improves the reliability of the whole machine and makes it easier to maintain the machine.
※ Humanized control design is safe and convenient to use. Even if the machine is not turned on according to the program, it will not cause UPS damage.
※ Complete protection function: overload, overtemperature, output short circuit, battery low voltage, battery high voltage, the system can automatically shut down.
※ Intelligent communication interface RS232, SNMP and dry contact communication methods are optional.

●UPSilon2000 monitoring software
The powerful intelligent communication management software UPSilon2000 makes MP truly realize multi-purpose communication and monitoring.
※MP provides a variety of monitoring methods, including an RS232 and an optional SNMP network adapter, which together with the UPSilon2000 monitoring software form an intelligent UPS power supply system.
※Three contact signals are provided for the user's automation equipment to cooperate with the remote alarm of UPS failure, city power outage, and battery low voltage.
※Data graphics display the real-time status of UPS output/input voltage, frequency, load, temperature and battery capacity.
※Optional SNMP Adapter can be used to remotely monitor UPS through LAN or international network, so that users can manage power more effectively without space restrictions.
※When UPS is in abnormal state, in addition to accurate automatic security archiving and safe shutdown, it also adds multi-faceted automatic alarm transmission functions, including automatic paging, E-mail, calling mobile phones, etc., to carry out necessary emergency response in the first time.
※Supported operating system: Novell Netware, MS-DOS, Microsoft Windows 3.1, Microsoft Windows 95, Microsoft Windows 98, Microsoft Windows 2000, Microsoft Windows NT.
※Supported network management platform: HP Open View, SUN SunNet Manager, IBM NetView, Novell NMS, Accton AccView, Other SNMP Compliant NMSs.

Solution 2: LDC MPR series substation-specific modular N+1 parallel redundant UPS/inverter

Addison LDC MPR series is a modular power-specific UPS/INVERTER designed for unmanned substations in China. The design concept of multi-module direct parallel connection effectively improves the safety, reliability and maintainability of the system. At the same time, it adopts AC and DC dual-channel input, and the DC is directly taken from the public DC system of the power system, which is not only low-cost and high-efficiency, but also easy to maintain and manage.

System principle block diagram

● Standard configuration
※ UPS power module
Standard 19-inch rack design, capacity: 1, 2, 3, 4, 5, 6KVA.
Including: rectifier, inverter, output isolation transformer, DC isolation diode, main control unit, display unit, etc.
※ Monitoring module
Standard 19-inch rack design, can monitor 8 power modules in parallel at the same time.
Including: monitoring unit, display unit, static switching switch, interface, etc.
※ Standard cabinet
Designed according to power standards, can be customized according to user requirements.
Including: cabinet, terminal block, module plug-in terminal, cooling fan, etc.
● Optional configuration
1. MODBUS communication interface
2. Manual bypass module
3. Standard 8-way power distribution module
4. Bypass isolation voltage regulator cabinet
5. Input isolation transformer
● UPS power module features
Each module of the MPR series is a complete power-specific UPS that can be used independently
※ Professional design for China's power grid environment, with a particularly wide input voltage range of 220VAC±25% and an input frequency range of 45Hz~65Hz, which can be used in long-term harsh power grid environments to avoid frequent battery discharge failure. ※
Input and output dual isolation transformer design, complete electrical isolation of the input, DC and output terminals, and strong overload and anti-interference capabilities.
※ Digital control technology and IGBT components are used to greatly improve the reliability of the system
※ Two-stage phase-locked loop automatic tracking is fully compatible with motors
※ Special five-stage overload protection, more suitable for various types of loads
※ LCD large-screen English liquid crystal display (Chinese liquid crystal display is optional)
※ Complete protection functions: overload, overtemperature, output short circuit, battery low voltage, battery high voltage, the modules can automatically exit the parallel system
※ Super strong remote management function
● Technical characteristics
1. The capacity of each module is 1, 2, 3, 4, 5, 6KVA, and 8 units can be directly connected in parallel
2. The DC input voltage of each module: 110V, 220V, 48V or customized according to user requirements
3. The system can accept two different AC power inputs: working power supply, bypass power supply
4. It can be operated as N+1 redundant or increased capacity, with a maximum capacity of 48KVA
5. Provide RS232 interface, and carry open communication protocol and monitoring software. RS485 interface can be selected, and standard protocols such as MODBUS, IEC, etc. can be provided
. 6. Provide 6 dry contact outputs for use in the automation system: UPS whole machine failure, bypass AC abnormality, battery power supply voltage abnormality, overload, total output abnormality, module failure. Other contact types can also be selected.
7. Provide a large-screen LCD English liquid crystal display, and select Chinese liquid crystal display.
● System features
In addition to all the characteristics of traditional UPS, this system also has the following characteristics in terms of technology and performance:
※ Modular combination: 8 units can be directly connected in parallel with 1~6KVA power modules as a unit.
※ Flexibility: UPS capacity can be flexibly increased or decreased according to actual needs.
※ Redundancy: N+X redundancy can be made according to actual needs to maximize system reliability.
※ Hot backup plug-in function: You can easily replace the module without shutting down the UPS under any circumstances, even when it is powered by batteries or for repairs, maintenance and capacity upgrades, it can continuously protect your equipment.

Reference address：UPS/Inverter Solution for Substation (Figure)

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