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.

 

A DC voltage to be consistent

A DC voltage to be consistent
Each inverter has a DC voltage value of the access, such as 12V, 24V, etc.,
Inverter
Asked to select the battery voltage must be consistent with the DC input voltage of the inverter. For example, 12V 12V battery inverter must be selected.

2, the inverter output pure sine wave online ups must be greater than the use of electrical power, especially when starting power for large appliances such as refrigerators, air conditioners, but also to stay bigger margin.

3, the positive and negative must be connected correctly
Inverter DC voltage marked access positive and negative. Red is positive (+) and black is negative (-), also marked on the battery positive and negative, red is positive (+) and black is negative (-), must now take the time to connect the positive (red pick red) and negative to the negative (black pick black). Cable diameter must be rough enough, and to minimize the length of the cable.
4, should be placed in ventilated, dry place to guard against rain, and with the objects around distance of more than 20cm away from flammable materials, or cover other items should not be placed on the machine, the ambient temperature is not greater than 40 ℃ .
5, the charge can not be performed simultaneously with the inverter. That will not be charged when the inverter output plug into the electrical circuit of the inverter.

Pre-installed piping

Pre-installed piping
1. Introduction pipeline
(1) two-director and branch pipes: From lubrication pump out until all the oil inlet distributor, relatively high under pressure. Usually cold drawn seamless steel pipe, the material is 10 or 15 gauge steel. Severe corrosion of the pipe must not be used;
(2) to the pipeline: from the distributor to all lubrication points out the inlet (bearing hole), under pressure is relatively low. Usually drawn copper, easy to bend when the pipe. There is also cold drawn seamless steel or stainless steel pipe;
(3) the use of hose high frequency online ups encountered active site connections.
2. The piping layout requirements
(1) pipeline to try to avoid the heat radiation and cooling water temperature is too high or too low, such as spraying of the Department, particularly hose fittings;
(2) piping and other equipment should not affect the operation of the host, to be safe, reliable, easy to work, observations, maintenance;
(3) To smooth vertical and horizontal piping, neat appearance. As little as possible, or small-angle bend elbows, using a large arc, thus reducing oil flow resistance;
When the conflict (4) installation occurs, a small tube let bassoon, low-pressure pipe so that high-pressure pipe;
(5) the pipeline can not be contacted at the intersecting should spaced;
(6) parallel pipe joints should be staggered installation, to avoid affecting the installation and removal;
(7) In order to facilitate disassembly pipeline cleaning, the union should be properly installed, but to use less, reducing the possibility of leaks.
3. Determine the length of the tube
(1) determined in accordance with 8.2 fixed piping path, the length of the tube was measured in the field, pay attention to the size of the bend radius of influence;
(2) make different types of pipe industrial ups system access after effects into account;
(3) to determine the length of the tube should be piecemeal, cut, pre-order to facilitate on-site adjusted according to actual situation, if all of a sudden cut off, the accumulated error occurs when the pipe is difficult;
(4) short pipe cut at all need to try to take advantage of the short tube where, if necessary, can be used to take a long straight pipe joints, joints should be less but not much on the tube segment.

 

The inverter is a DC to AC transformer, which in fact is the process of transforming a voltage inverter.

The three phase online ups is a DC to AC transformer, which in fact is the process of transforming a voltage inverter.
Converter is the grid AC voltage is converted to stable 12V DC output, and the output of the inverter is Adapter 12V DC voltage into a high voltage alternating current of high frequency; likewise two portions are used with more than a pulse width modulation (PWM) technique. At its core is an integrated PWM controller, Adapter using UC3842, the inverter is used TL5001 chips. TL5001 operating voltage range of 3.6 ~ 40V, has an internal error amplifier, a regulator, oscillator, with dead-controlled PWM generator, low-voltage protection circuit and short circuit protection circuits.
Input Interface parts: input part has three signals, 12V DC input VIN, work ENB enable voltage and current control signals Panel DIM. VIN provided by the Adapter, ENB voltage provided by the MCU on the motherboard, its value is 0 or 3V, when ENB = 0, the inverter does not work, and ENB = 3V, the inverter is in normal working condition; and DIM voltage provided by the motherboard, which ranges between 0 ~ 5V, the different values of feedback to the PWM controller DIM feedback terminal of the inverter to the load current will be different, the smaller the value of DIM, the inverter output current greater.