1.Aims at post,telecommunication, railway and electric power industry
2. Advanced technology
3.Online
4.Double conversion
Inverter-Paraphrase:
An inverter is an electrical device that converts direct current (DC) to alternating current (AC); the converted AC can be at any required voltage and frequency with the use of appropriate transformers, switching, and control circuits.
Solid-state inverters have no moving parts and are used in a wide range of applications, from small switching power supplies in computers, to large electric utility high-voltage direct current applications that transport bulk power. Inverters are commonly used to supply AC power from DC sources such as solar panels or batteries.
There are two main types of inverter:
(1)The output of a modified sine wave inverter is similar to a square wave output except that the output goes to zero volts for a time before switching positive or negative. It is simple and low cost and is compatible with most electronic devices, except for sensitive or specialized equipment, for example certain laser printers.
(2)A pure sine wave inverter produces a nearly perfect sine wave output (<3% total harmonic distortion) that is essentially the same as utility-supplied grid power. Thus it is compatible with all AC electronic devices. This is the type used in grid-tie inverters. Its design is more complex, and costs 5 or 10 times more per unit power The electrical inverter is a high-power electronic oscillator. It is so named because early mechanical AC to DC converters were made to work in reverse, and thus were "inverted", to convert DC to AC.
The inverter performs the opposite function of a rectifier.
Inverter Features:
1.SPWM technology, pure sine wave output
2.CPU control, advanced anti-jamming technology, good electromagnetism compatibility
3.LCD+LED display, easy to operate
4.Vertical, 19 inch rack, power machine cabinet installation
5.Over-voltage, low-voltage, short-circuit, over-load protection
6.AC main supply, DC main supply, pure DC power supply
Inverter Parameters:
Model/series | NP800S | NP800D | NP800E |
Capacity | 1KVA~10KVA | 1KVA~20KVA | 1KVA~40KVA |
AC input | |||
Phase | Single-phase | ||
Voltage | 220V±20% | ||
Frequency | 50HZ±10% | ||
AC output | |||
Phase | Single-phase | ||
Voltage | 220 V±2%(On battery) | ||
Frequency | 50HZ±0.1%( On battery) | ||
Power factor | 0.8 | ||
Wave-form | Sine wave | ||
Crest factor | 3:1 | ||
Total voltage harmonics distortion | linear load <3%,non-linear load <5% | ||
Overload protection | >125%,1min;>150%,200ms | ||
Output voltage transient characteristic | ±5%( Load abrupt change From 0 to 100%) | ||
Transient response time | <20ms | ||
Conducted interference | 0.15~0.5MHz, quasi peak value <79dB, average value<66dB 0.5~30MHz, quasi peak value <73dB, average value<60dB | ||
DC input | |||
Rated DC voltage | 48V | 110V | 220V |
The range of DC voltage | 40-57V | 90-150V | 180-300V |
Adverse disturbance current | <10% | ||
System spec | |||
Protection | Overload, over charge and over discharge; out the range of voltage and frequency, over current, short circuit, over temperature ect. | ||
Full load efficiency | >85% | ||
Transfer time | <8ms | ||
Crest factor | 3:1 | ||
Communication interface | RS232 | ||
Environment temperature | 0-40°C | ||
Relative ambient humidity | 20%-90%(Non-condensing ) | ||
Altitude | <1500m, 1% rated capacity decrease against rised 100m | ||
Cooling method | Forced are-cooling with temperature control | ||
Noise | <60dB | ||
Isolation voltage | 1500Vac/1min, The terminal of input and output to earth, leakage current less than 3.5mA. | ||
Up to now, the products we operate are:
1, Full range industrial frequency online UPS from 1KVA to 200KVA
2, High frequency online UPS from 1KVA to 10 KVA
3, Inverters with 48v, 110v, and 220v,
4, Electric exclusive UPS
5, Rackmounte UPS
6, Tower shape/style UPS
Meanwhile, we also provides the other kinds of UPS just according to our customer’s special requirements.
