We will attend POWER-GEN Africa 2015 from July 15th - 17th 2015. Welcome to visit us for further business.We will show our newest UPS and solar inverter there ,and will have some gifts for you !
Date:July 15th to 17th 2015 10:30-18:00
Booth No:L23-3 
See you at POWER-GEN Africa 2015, Cape Town International Convention Centre, Cape Town ,Republic of South Africa!
And welcome to visit our company the website:http://www.soropower.com smile 表情符

Output waveform classification

Output waveform classification
(1) square wave inverter
AC voltage square wave inverter output waveform is a square wave. Such inverter inverter circuit used is not exactly the same, but the common feature is relatively simple lines, a small number use the power switch. Design pure sine wave online ups is generally between one hundred watts to kilowatts. Advantages square wave inverter is: Line is simple, cheap, and easy maintenance. The disadvantage is that due to the square-wave voltage contains a large number of high-order harmonics, resulting in additional losses in the load appliances with core inductor or transformer in on the radio and some communications equipment interference. In addition, these inverters also pressure range is not wide enough, the protection function is not perfect, the noise is relatively large defects.
(2) step wave inverter
AC inverter output voltage waveform of such a stepped wave, a stepped wave inverter output is also to achieve a great variety of different line number stepped difference, the output waveform. Advantages step wave inverter, the output waveform for example, a significant improvement in waves, reducing high harmonic content, when the ladder when you reach 17 or more can be achieved quasi-sinusoidal output waveform. When using transformerless output, high overall efficiency. The disadvantage is that the ladder wave superposition line using the power switch more, some of which also require multiple sets of lines in the form of a DC Ups power manufacturer input. This gives a balanced group with wiring and battery charging solar phalanx were trouble. In addition, voltage step wave radio and some communications equipment are still some high-frequency interference.

The inverter only has straight AC conversion function

The inverter only has straight AC conversion function, also has a maximum limit to carry forward the usefulness and functionality of the solar system maintenance function problems. Summed up the initiative to stop the operation and function of the maximum industrial ups power supply point tracking control function, anti-alone operation function (and network systems), active voltage regulation function (and network systems), DC detection function (and network systems), the DC ground fault detection function (and network systems). Here brief introductions active operation and shutdown function and maximum power point tracking control function.
An initiative to stop the operation and function of the morning after sunrise, solar radiation intensity gradually strengthen, the output of solar cells also increased, when the tasks required to reach the inverter output power, the initiative to start the operation of the inverter. After entering operation, the inverter output will be at all times the solar cell module custody, only the output power of the solar cell module is greater than the inverter output Outdoor cabinet required for the task, the inverter will continue to operate; stop until sunset, even rainy days inverter can operate. When the output of solar modules become smaller, the inverter output is close to 0, the inverter will constitute standby mode.
2, the maximum power output of the solar tracking control function module is included with the intensity of solar radiation and the solar cell module itself temperature (chip temperature) and change. Else because the solar cell module having a voltage drop with the increase of the current characteristics, and thus be able to obtain the best task exists the maximum power point. Changes in the intensity of solar radiation is obviously the best task point is also in transition. Related to these changes, the task has been to make solar modules at maximum power point point, the system always get the maximum power output from the solar components, such restraint is the maximum power point tracking control. Most important feature of solar power inverter system that covers the use of the maximum power point tracking (MPPT) in this function.

UPS is the battery (maintenance-free lead-acid batteries, mostly) and the host is connected to the host via an inverter module converts the DC circuit mains system equipment

UPS is the battery (maintenance-free lead-acid batteries, mostly) and the host is connected to the host via an inverter module converts the DC circuit mains system equipment
Power supply is mainly used for a single computer, computer network systems, or other power electronic devices such as solenoid valves, pressure transmitters provide a stable, uninterrupted
Online means regardless of the grid voltage is normal, the load to go through with the AC voltage inverter circuit, inverter circuit that is always active, on-line double conversion UPS generally structure. The so-called double-conversion high frequency online ups refers to normal working hours, power through the AC / DC, DC / AC conversion twice and then supplied to the load.
This UPS uninterruptible power supply so that the inverter has been in working condition, it is first converted by circuitry external AC to DC, and then through the high quality of the inverter to convert DC into high quality sine wave AC output to the computer. Online UPS power supply situation in the main function is regulated and prevent radio interference, while the battery charge management; backup during power outages using a DC power source (battery) power to the inverter. Since the inverter has been at work, so there is no problem switching time for the power supply, there are strict requirements of the occasion.

Installation of pipe clamp

Installation of pipe clamp
(1) pipe clamp plate is generally directly or via angle bracket welded structures, etc., in the concrete floor or wall surface side of the bracket with expansion bolts;
(2) pipe clamp installation should pay attention to leveling, is installed on the same surface height;
(3) pitch pipe clamp: When the diameter ≤φ10, about 0.5 to 1 m; diameter φ10 ~ 25 at about 1 to 1.5 m; diameter φ25 ~ 50 at about 1.5 to 2 meters, but at a right angle bend, both sides should each with a hose clamp.
Pre-installed
(1) The fittings and equipment, pipes and pure sine wave online ups piecewise connection, until completion of all pre-installed;
Installation Method (2) pipe fittings are detailed in Chapter 4;
(3) while the hose clamp plate welded to the structural member or holder, not the tube welded pipe clamp or bracket;
(4) pre-installed and checked passing mark on the line print tie, one of a number tabulated spare. After removing the pipe cleaning, restoration by number.
Precautions
(1) Before installing the pipe can press all the requirements in Chapter 9 pickling, especially steel and bite type fittings connection should be pickled, then ferrule tube end pre-fastened;
(2) All fittings should be cleaned with kerosene to be installed inside the o-ring should be temporarily removed custody, to be put on when the formal installation;
(3) To keep the oil port construction pumps, dispensers and other equipment, Home ups, pipe end and other openings to clean, can not let water, dust and other foreign matter from entering;
(4) should be in a free state pipeline laying, pipe welding after not apply excessive force fixed radial force and connections;
(5) bearing hole should check in advance, whether inside the oil flow, whether the oil port with threaded fittings to match.

 

Pipe cutting

Pipe cutting
(1) with a special cutting machine sawing or cutting pipes and other equipment, and definitely not broken with solvent (such as flame cutting) or cutting wheel;
(2) the cut should be smooth, flat section is not greater than 1 mm, and the tube is not greater than the vertical axis of the 1 degree;
(3) remove the chips and burrs with a file, scraper and so on;
(4) with clean compressed air or other means to remove the tube attached debris and rust;
Tube bending
(1) with cold-formed pipe bender, not bending (large diameter pipe elbow alternatives available ELBOW), bend radius is more than four times the diameter;
(2) ovality (path length change) bend diameter of less than 10%, and can not appear wrinkles;
(3) If there are joints bend pipe end, there should be a straight pipe the pipe end Ups for home is connected, in order to avoid affecting the installation;
Welded pipe and industrial ups power supply
(1) using the GTAW or TIG welding after filling back arc. When the pressure exceeds 21mpa, should also inside the tube through 5l / min argon;
(2) pipe wall thickness> is 2mm, the outer should be cut 35 ° bevel and stay at 3mm gap counterparts; the tube wall thickness ≤2mm, not cut groove, leaving their counterparts at 2mm gap;
(3) When the counterpart of the tube axis must coincide, the wrong side of the wall thickness of less than 15%, the skew of less than 1: 200

 

Installation Precautions high pressure hose fittings

Installation Precautions high pressure hose three phase online ups
(1) hose in a mobile or stationary, and can not bend over, it can not be bent at the root, at least to start bending at 1.5 times its diameter;
(2) hose moved to the extreme position not pull it too tight, should be more relaxed;
(3) try to avoid the hose twisting deformation;
(4) hose as far as possible away from the heat radiating member, fashion necessary insulation boards;
(5) Avoid hose external damage, such as the use of the same long-term friction surface of the member;
(6) If the hose caused by excessive weight deformation, should support members.