High reliability design
◆Double conversion online topology design enables UPS output
frequency tracking, phase locking, voltage stabilization and noise
filtering, and is not affected by power grid fluctuations. Pure
sine wave power supply, UPS output provides more comprehensive and
perfect protection for user equipment.
◆Advanced modular dual CPU control has reliable overall operation
and high stability, ensuring the overall efficiency of UPS safe
operation. ◆CPU controls the charging of current, and the charger
periodically charges the current according to the capacity of the
battery. ◆The input harmonic filter meets American and European
standards, allowing UPS to reduce the pollution of mains feedback
and not affect other devices sharing the same mains input.
◆Adopting advanced power factor correction PFC technology, the
input power factor is almost 1 regardless of how the load and mains
voltage change. ◆ Wide AC input voltage range: 380VAC±25%, avoid
frequent switching to battery power, and adapt to areas with harsh
power environment. ◆Using high-frequency filtering synchronization
circuit, fast tracking of synchronization frequency and power
gradual growth function, reduce the requirements for generators,
and the capacity is only twice the UPS input power. ◆Harmonic
filters are set at the input and output to minimize the harmonic
interference of UPS to the power grid. ◆DC start function can
directly start the UPS when there is no mains power to meet the
user's emergency needs.
Perfect whole machine protection capability ◆It has multi-function
protection such as
output overload protection, output short circuit protection,
inverter over-temperature protection, battery undervoltage warning
protection and battery overcharge protection, which greatly ensures
the stability and reliability of system operation. ◆Equipped with
manual maintenance switch, when UPS fails, it can switch to bypass
working state without interruption and continue to supply power to
the load from the mains, making maintenance work easy, convenient
and fast.
Interface management function
◆ LCD display can record UPS working status, parameter information,
etc. in real time, making it convenient for users to manage UPS .
Network monitoring management
◆Through RS232/RS485 communication interface, SNMP network adapter,
and UPS intelligent monitoring software, it can communicate with
the computer. Various UPS parameters are clearly displayed on the
communication interface.
Optional intelligent battery monitoring module
◆ Can detect single cells, with overvoltage, undervoltage and
differential pressure alarm functions, if there is a battery
failure, it will be displayed on the screen and the administrator
will be notified.
High environmental adaptability
◆ The circuit board is placed in a completely enclosed space and
treated with "three-proof" coating, which is more suitable for the
harsh environment of tunnels and squares.
Technical Parameters
| model | EX 3C3 20K |
| capacity* | 20KVA / 16KW |
| enter |
| Voltage range | Minimum conversion voltage | 110 VAC (Ph-N) ± 3 % at 50% load; 176 VAC (Ph-N) ± 3 % at 100% load |
| Minimum reset voltage | Minimum conversion voltage +10V |
| Maximum conversion voltage | 300 VAC(LN) ± 3% at 50% load; 276 VAC(LN) ± 3% at 100% load |
| Maximum reset voltage | Maximum conversion voltage - 10V |
| Frequency range | 46Hz ~ 54 Hz @ 50Hz system 56Hz ~ 64Hz @ 60Hz system |
| Phase | Three-phase grounding |
| Power Factor | 100% load ≧ 0.99 |
| Output |
| Phase | Three-phase grounding |
| Output voltage | 3 x 360*/380/400/415/VAC (3Ph+N) |
| AC voltage range | ± 1% |
| Frequency range (synchronization range) | 46Hz ~ 54 Hz @ 50Hz system 56Hz ~ 64Hz @ 60Hz system |
| Frequency range (battery mode) | 50 Hz ± 0.1 Hz or 60 Hz ± 0.1 Hz |
| Overload | AC Mode | 100%~110%: 10 minutes 110%~130%: 1 minute >130% : 1 second |
| Battery Mode | 100%~110%: 30 seconds 110%~130%: 10 seconds >130% : 1 second |
| Current peak ratio | 3:1 Maximum |
| Harmonic distortion | ≦ 2 % @ 100% linear load ≦ 5 % @ 100% non-linear load |
| Switching time | Online ←→ Battery | 0 ms |
| Frequency conversion ←→ bypass | 0 ms (When phase lock fails, the inverter switches to bypass with
an interruption of less than 4 milliseconds) |
| Frequency conversion ←→ ECO | <10 ms |
| efficiency |
| AC Mode | > 91.5% |
| Battery Mode | > 88% |
| Battery |
| Standard | model | 12 V / 9 Ah |
| number | 2 x 16 |
| Charging time | 9 hours to reach 90% capacity |
| Charging current (maximum) | 2.0A ±10% |
| Charging voltage | 218 VDC ± 1% |
| Long extension machine | model | Varies depending on usage |
| number | 16, 18 - 20 |
| Charging current (maximum) | 4.0A ±10% |
| Charging voltage | 13.65 VDC * Number of cells ± 1% |
| Physical properties |
| Dimensions, depth x width x height (mm) | 576X250X576 |
| Net weight(kgs) | 40 |
| Environmental conditions |
| Operating temperature | 0 ~ 40°C (When the temperature is above 25°C, the battery life will
be shortened) |
| Operating humidity | <95 % without condensation |
| Operating altitude* | <1000m |
| noise | Less than 65dB @ 1 Meter |
| manage |
| Intelligent RS-232 or USB | Supports Windows® 2000/2003/XP/Vista/2008, Windows® 7, Linux and
MAC |
| Optional SNMP | Supports power management via SNMP manager and web browser |
——UPS power solution service provider——
