Solution
Description
———— Product Features ————
- This product series is an industrial-grade offering designed to meet industrial‑grade standards.
- It adopts a plug-and-play modular design.
- Based on LDC’s proprietary inverter magnetic parallel‑connection patent technology, unlimited parallel‑connected redundant operation has been achieved.
- Selecting a configured power equipment lifecycle management system enables fault detection, automated fault remediation, and lifespan prediction for the equipment.
- This product series comprises only three‑phase input, single‑phase output models.
- The single-unit system can have a maximum capacity of up to 200 kVA.
———— Application Industries ————
It is primarily used in distributed‑power supply applications on production lines, as well as in centralized power‑supply systems such as DCS control systems, communication systems, monitoring systems, and network management centers—critical equipment and environments that require highly reliable, uninterrupted power.
Coal chemical industry
Coal-fired power plant
Fuel-fired power plant
Gas-fired power plant
Hydroelectric power plant
New materials, semiconductors, and other strategic emerging industries
Nuclear power, concentrated solar power, hydrogen energy, and other new energy sources
Other industrial applications
———— Technical Specifications ————
It is primarily used in distributed‑power supply applications on production lines, as well as in centralized power‑supply systems such as DCS control systems, communication systems, monitoring systems, and network management centers—critical equipment and environments that require highly reliable, uninterrupted power.
The rectifier employs 12-pulse, 18-pulse, or 24-pulse SCR rectification, while the inverter utilizes IGBT-based inversion.
32-bit DSP all-digital control technology
Parameter control and settings can be configured via software.
ABM fast-charging design, configurable via the control panel.
Input power factor as high as 0.90
Multi-unit infinitely parallel redundant system
Extremely high overall machine efficiency
Input current distortion below 7%
International Standard Communication Protocol
———— Performance Features ————
01.
All-in-one design
The input and output isolation transformers, DC isolation diodes, manual bypass, and automatic bypass are all integrated within the UPS unit; no external components or additional configuration are required.
02.
Fully redundant design
The rectifier, inverter, static bypass, and other key components—along with their control power supplies, microprocessors on the main control board, and cooling fans—are all configured in a dual-redundant architecture, ensuring that any single-point failure will not compromise the operation of the entire system.
03.
Full Chinese character display (supports multiple languages)
The large‑screen LCD display and the UPS monitoring software both feature fully Chinese‑language interfaces, with simple and intuitive operation. This ensures that administrators can use the system without any language barriers and master it quickly.
04.
Fully modular design
“Plug-and-play” modular design ensures easy, fast maintenance and repair, significantly reducing service time.
05.
Fully digital with hardware-compatible control
Utilizing a 32-bit DSP and control and switching components such as IGBTs: effectively enhances system stability and improves efficiency.
06.
User-friendly operational design
There are no rigid procedural restrictions; operation is straightforward, unlike other brands of UPS that impose strict operating‑procedure constraints.
07.
Ultra-wide input voltage range
Under full-load conditions, the input voltage range is exceptionally wide—ranging from –25% to +35%. Consequently, even when most UPS systems would otherwise rely on battery discharge to maintain stable output voltage, these units can still operate as normal.
08.
Intelligent monitoring and cooling fan speed control
Any fan malfunction can be monitored via the UPS panel or the dry-contact interface. The fan speed automatically adjusts according to the load, extending the fan’s lifespan and reducing noise.
09.
The static switch has an extremely short switching time.
For seamless switching, 32-bit DSP digital control technology and current‑mode sensing are employed, reducing the switching time to zero.
———— Product Principle Block Diagram ————
Block Diagram of the Industrial-Grade NMP Series
Principle Block Diagram of the Power-Specific NMP Series
———— Product Specification Sheet ————
| Model (Capacity kVA) | NMP (5K 10K 15K 20K 30K 40K 50K) | NMP (60K 80K) | ||
| UPS Type | Double isolation, double conversion online type | |||
| Efficiency | >93% | |||
| UPS ambient temperature | -30~40℃ (+55℃, 16-hour full-load operation) | |||
| UPS storage temperature | -30~+70℃ | |||
| Relative humidity | <95% (non-condensing) | |||
| Height | <1500m (above sea level) | |||
| Power derating at altitudes above 1500 m. | 7%/km | |||
| Ventilation method | 1+1 redundant fans, forced air cooling, top-and-bottom airflow | |||
| Noise | <60dBA | |||
| Input/Output Cable Connection | Bottom or top | |||
| Communication interface | RS232 (1 port) / RS485 (1 port) / Dry contacts (1 set), SNMP optional | |||
| Standard | CE, EN 50091-1,2 | Compliant with | ||
| FCC CLASS A | Compliant with | |||
| Protection circuit | Short-circuit protection | Rectifier/Backup Power Supply/Bypass Switch | ||
| Lightning Protection | MOV | |||
| EMC filtering | Input & Output | |||
| Quarantine | Full input/output isolation | |||
———— Rectifier ————
| Bridge Rectifier | Three-phase 6-pulse controlled rectifier | Three-phase 12-pulse controlled rectifier | ||
| Rated Input Voltage (VAC) | 380V-25%+30%, three-phase three-wire or three-phase four-wire | |||
| Input frequency | 50/60Hz±10% | |||
| Input power factor | >0.75 | >0.85 | ||
| DC output voltage | 110V/220V | |||
| DC output voltage accuracy (with load varying from 0% to 100%) | ±1% | |||
| Efficiency | >0.85 | >0.9 | ||
———— Inverter ————
| Bridge inverter | IGBT inverter with DSP control IGBT | |||
| DC Input Range | 110VDC/220VDC±25% | |||
| Rated output voltage | 110V/220/230VAC, 2P2W or 120V/240VAC, 2P2W | |||
| Output power factor | 0.8 | |||
| Output frequency | 50/60Hz±0.1% | |||
| Output voltage stability | Static | ±1% | ||
| Dynamic (0~100%~0) | ±5% | |||
| Output voltage recovery time | After a step load, it recovers to within 2% within 10 milliseconds. | |||
| Overload capacity | 125% for 10 minutes, 150% for 1 minute. | |||
| Short-circuit characteristics | Short-circuit protection, current limiting at 3 times the rated current, 100 ms. | |||
| Output waveform | Sine wave | |||
| Output waveform distortion | Linear load | <2% | ||
| Nonlinear load (crest factor 3:1) | <5% | |||
| Peak factor | 3:1 (customizable to a crest factor greater than 3:1) | |||
| Efficiency | >94% | |||
| DC cold start | Okay. | |||
———— Bypass ————
| Automatic Static Switch | Thyristor SCR | |||
| Rated voltage | 110V/220V/230V ±20% (adjustable) or 120V/240V ±20% (adjustable) | |||
| Rated frequency | 50/60 Hz ± 5% (adjustable) | |||
| Static bypass transfer time | <0.4ms | |||
| Inverter to Static Bypass | Inverter testing, inverter fault, excessive inverter input voltage, excessive inverter output voltage. | |||
| Overload capacity | 100%~110% | Long-term operation | ||
| >110%~125% | 10min | |||
| >125%~150% | 1min | |||
| >150% | 100mS | |||
———— Mechanical Parameters ————
| Model number | NMP (5K 10K 15K 20K 30K) | NMP (40K 50K) | NMP (60K 80K) | |
| Protection rating | IP20, IP21, IP30, IP32, IP40, and IP42 are available; other options can be customized. | |||
| Cabinet dimensions | W | 600 | 800 | 1200 |
| D | 800 | |||
| H1 | 1800(IP20, IP30, IP40) | |||
| H2 | 2000 (IP21, IP32, IP42) | |||
| Weight (kg) | 700~800 | 800-1000 | 1100~2000 | |
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+86-532-87883999
+86-532-87980999
ldcups@ldc.com.cn
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Office address: Building 7, Xia Zhuang Zhi Zao Yuan, U Valley, liandong, No.328, Cheng Kang Road, xia zhuang Street, Chengyang District, Qingdao City, Shandong Province
Factory Address: Jiangshan Precision Machinery Manufacturing Industrial Park, Laixi City, Qingdao City, Shandong Province
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