Equipment Maintenance Management Software

L & 39; strategic objective of any production and utilities department is to maximize production. Machinery and equipment is managed continuously or in batches. L & 39; equipment can be complex, as in nuclear reactors or as simple as machinery tour. The goal of maximizing production is determined by the availability of equipment & 39; and its strategic objective of condition.The service & 39; maintenance of production services and utilities departments is to ensure & 39; reliability and availability of machines. The operational objectives of the service & 39; maintenance require the availability and schedule employees for work orders, maintenance d & 39; inventories for the parties, and the analysis & 39; maintenance-related problems . Equipment management software d & 39; maintenance contributes to achieving strategic and operational goals d & 39; a maintenance organization. These programs are available as stand-alone applications tailored to specific requirements, or integrated end solutions.At strategic level, the equipment & 39; MMS allows senior management to make decisions concerning the purchase of & 39; equipment by providing data and analysis & 39; costs of asset management, and providing data to the seller and & 39; analysis equipment provided by various vendors.At level of operations, l & 39; equipment MMS helps manage the programme & 39; maintenance of equipment. The software helps the prevention and predictive maintenance by & 39; analysis of historical data from previous maintenance work orders. It also helps determine the availability of equipment & 39; and duration of work. An integrated solution helps optimize inventories in determining the parties use and reorganize time.Equipment MMS is ideally suited for small and medium enterprises for which the whole & 39; integrated solutions May be very costly. The decision to install & 39; l & 39; MMS equipment should be guided by the requirements of organizations and characteristics of the software. Maintenance of equipment & 39; management software provides detailed information on & 39; equipment management software d & 39; maintenance, facility maintenance management software, & 39; maintenance of the fleet management software, the Foundation management software d & 39; maintenance and more. Maintenance of equipment & 39; management software is affiliated to the fleet maintenance software.



Bookmark it:

Free Maintenance Management Software

In the early 1990s, corporate IT costs rose irrationally, to talk, do a panacea for all the company& 39;s problems. After the dot-com bust, corporate capital expenditures significantly reduced. Currently, the expenditure on it, all through the involvement of a different approach to project management capability, and in some cases, this is an extreme workers and business consultant business case to present to the same period expenditure.during The software vendor& 39;s growth. They provide all kinds of application software industry, either as a stand-alone package or end-to-end solution. Exuberance faded after the first, the proliferation of dot-com bust. Many software vendors simply went bankrupt, leading the venture capital dried up. Total consolidated other packages to the remaining large-scale acquisitions in the ERP and large firms.the PURAIZUASETTOSORYUSHONPUROBAIDA is beyond the reach of SMEs. In addition, these solutions to justify the cost is not small and medium enterprises. Thus, small businesses stand to go ARONAPURIKESHONSOFUTOUEAPAKKEJI expensive.mms that is not the function of different life-cycle management of the assets. SMEs will choose a tight budget, if necessary, to provide application vendors. readymade as a demonstration of software applications, available on the Internet, freeware and shareware. Software vendors, some of the products will be a free download for a specific period, usually one month after any application if the customer is satisfied with the bought.freeware also be able to manage and shareware Maintenance is implemented. Freeware sample given the expectations of the customers buy the software. Thus, there is no free lunch. Equipment maintenance management software maintenance equipment to provide more information about the software, software maintenance facilities and fleet maintenance management software, software maintenance Foundation. Equipment maintenance software fleet maintenance software.



Bookmark it:

Maintenance of AC Electric Motors

Proper maintenance of slip ring motors is very essential in order to prevent failure resulting in damage to equipment and personal injury.
The following maintenance procedure should be performed regularly:- 1) Bearing lubrication 2) Insulation resistance check 3) Cleaning The use of unauthorized parts in the repair/maintenance of the motors, tampering by unqualified personnel, or removal or alterations of guards or conduit covers will result in dangerous conditions which can cause severe personal injury or equipment damage. All safety instructions should be followed.
1.BEARING LUBRICATION: Bearing life is assured by maintaining proper alignment, proper belt or chain tension, and good lubrication at all times. Before dispatch the motor bearings are lubricated with the proper amount and grade of grease, to provide six months of satisfactory service under normal operating conditions. For best results, grease should be compounded from a polyurea base and a good grade of petroleum oil. It should be of No.2 consistency and stabilized against oxidation. Most leading oil companies have special bearing grease that is satisfactory.
Re-lubricate bearings every six months as follows:- 1. Stop the motor. Lockout the switch 2. Thoroughly clean off pipe plugs and remove from housings
2.CLEANING: The motor exterior must be kept free of oil, dust, dirt, water, and chemicals. For fan cooled motors, it is particularly important to keep the air intake openings free of foreign material. Do not block air outlet or inlet. On non-explosion proof motors, a removable plug in the bottom of the motor bearing housing permits removal of accumulated moisture. Drain regularly. During normal operation the slip rings acquire a protective coating that contains copper oxide and graphite with absorbed water as a result of several weeks of operation. This film of coating serves as a lubricant that reduces brush wear. Operating conditions and brush grade affect the makeup and colour of this film from straw colour to jet-black. A good surface film is chocolate brown in colour. Atmospheric pollution has adverse effect on this film and its formation. Softer brushes are used for light loads and help in formation of the protective film. Hard brushes are used for heavy load and oily atmosphere.
Slip rings may be cleaned by a wiper made of several layers of hard woven canvas at the end of a wooden stick. The frequency of cleaning is decided by the atmosphere surrounding the machine. Incase of open slip rings they may be cleaned once after every 24 hours of running. Convas is not abrasive and does not damage the film. For effective cleaning wiper has to be used with sufficient pressure and use of solvents should be avoided.
3.INSULATION RESISTANCE: 1. Check insulation resistance periodically, by a megger. According to the Institute of Electrical & Electronics Engineers the insulation resistance of stator windings at 500n volts D.C after one minute, should not be less than:-
Rated voltage of machine + 1000 = Insulation resistance in Mega ohms 1000 SELECTION
For the selection of a motor for a particular application, the following points should be considered:-
1) Load torque and speed required:- Variable torque with adjustable speed Constant torque with variable speed Constant horsepower with variable speed 2) Starting torque 3) Cost 4) Efficiency 5) Type of enclosure Totally enclosed type forced air cooled (TEFC) Drip proof type 6) Temperature classification Class B motors Class F motors
Softbit provides CAD/CAM software packages for Electrical Machine Design, Industrial Automation products such as Remote Data Logger. Company aims to satisfy the current and future needs of its valued clients. We strive for customer s satisfaction; our aim is technology dedication & continual improvements. http://www.softbitonline.com/ Power transformer design



Bookmark it:

Vlans

In order to implement VLANs in a network environment, you ll need a Layer 2 switch that supports them. Almost all switches sold today that are described as "managed" switches provide the ability to make ports members of different VLANs. However, switches that don t provide any configuration function (such as many basic, lower-end switches) don t provide the ability to configure VLANs. Almost any Cisco Catalyst switch that you ll come across today provides the ability to make ports part of different VLANs.

Before getting into the details of how a VLAN functions, it s worth exploring some of the advantages that a VLAN provides. First and foremost, VLANs provide the ability to define broadcast domains without the constraint of physical location. For example, instead of making all of the users on the third floor part of the same broadcast domain, you might use VLANs to make all of the users in the HR department part of the same broadcast domain. The benefits of doing this are many. Firstly, these users might be spread throughout different floors on a building, so a VLAN would allow you to make all of these users part of the same broadcast domain. To that end, this can also be viewed as a security feature - since all HR users are part of the same broadcast domain, you could later use policies such as access lists to control which areas of the network these users have access to, or which users have access to the HR broadcast domain. Furthermore, if the HR department s server were placed on the same VLAN, HR users would be able to access their server without the need for traffic to cross routers and potentially impact other parts of the network.

VLANs are defined on a switch on a port-by-port basis. That is, you might choose to make ports 1-6 part of VLAN 1, and ports 7-12 part of VLAN 2. There s no need for ports in the same VLAN to be contiguous at all - you could make ports 1, 3 and 5 on a switch part of VLAN 1, for example. On almost all switches today, all ports are part of VLAN 1 by default. If you want to implement additional VLANs, these must first be defined in the switch s software (such as the IOS on a Cisco switch), and then ports must be made members of that VLAN. A VLAN isn t limited to a single switch, either. If trunk links are used to interconnect switches, a VLAN might have 3 ports on one switch, and 7 ports on another, as shown below. The logical nature of a VLAN makes it a very effective tool, especially in larger networking environments.

Inter-VLAN Communication

I mentioned a few times already that a VLAN is simply a special type of broadcast domain, in that it is defined on a switch port basis rather than on traditional physical boundaries. Recall from the earlier articles in this series that when a host in one broadcast domain wishes to communicate with another, a router must be involved. This same holds true for VLANs. For example, imagine that port 1 on a switch is part of VLAN 1, and port 2 part of VLAN 99. If all of the switch s ports were part of VLAN 1, the hosts connected to these ports could communicate without issue. However, once the ports are made part of different VLANs, this is no longer true. In order for a host connected to port 1 to communicate with another connected to port 2, a router must be involved.

You may already be familiar with the concept of a Layer 3 switch. A Layer 3 switch is generally a Layer 2 switching device that also includes the ability to act as a router, usually through the use of additional hardware and software features. If a switch includes Layer 3 capabilities, it can be configured to route traffic between VLANs defined in the switch, without the need for packets to ever leave the switch. However, if a switch only includes Layer 2 functionaility, an external router must be configured to route traffic between the VLANs. In some cases, it s entirely possible that a packet will leave switch port 1, be forwarded to an external router, and then be routed right back to port 2 on the originating switch. For this reason, many companies have decided to implement Layer 3 switches strategically throughout their network. Regardless of the method chosen, it s most important for you to recognize that when a host on one VLAN wants to communicate with a host on another, a router must somehow be involved.

Extending VLANs Between Switches

In order to extend VLANs across different switches, a trunk link must interconnect the switches. Think of a trunk link as being similar to an uplink between hubs - usually a trunk link is implemented between fast switch ports on two different switches using a crossover cable. For example, you might interconnect two Gigabit Ethernet ports on different switches using fiber optics, or two 100 Mbps switch ports using a traditional Cat5 crossover cable. In most cases it is generally recommended that you use the fastest port available for trunk connections, since this link will often carry a great deal of traffic, possibly for multiple VLANs.

To begin, let s assume that you have connected a link between the 100 Mbps ports of two switches, as shown below. Notice that each of these ports are members of VLAN 1 on each switch. By default, without any additional configuration, these ports will act as a trunk link, but will only pass traffic for the VLAN associated with their port connections - VLAN 1. This type of link, where only traffic for a single VLAN is passed, is referred to as an "Access Link". While an access link does the job for a single VLAN environment, multiple access links would be required if you wanted traffic from multiple VLANs to be passed between switches. Having multiple access links between the same pair of switches would be a big waste of switch ports. Obviously another solution is required when traffic for multiple VLANs needs to be transferred across a single trunk link. The solution for this comes through the use of VLAN tagging.

VLAN Tagging

When you want traffic from multiple VLANs to be able to traverse a link that interconnects two switches, you need to configure a VLAN tagging method on the ports that supply the link. Although there are a number of tagging methods in use for different technologies, the two that you need to be aware of for the purpose of the CCNA exam are known as InterSwitch Link (ISL) and 802.1q. ISL is a Cisco proprietary VLAN tagging methods, while 802.1q is a open standard. When interconnecting two Cisco switches, ISL is usually the best choice, but if you need to interconnect switches of different types (a Cisco switch and an Avaya switch, for example), then you ll need to use IETF.

For the CCNA exam, the only thing that you really need to know about 802.1q is that it is the open standard for VLAN tagging, and should be used in mixed environments. The exam expects you to have a somewhat deeper understanding of ISL, including how it works, when it can be used, and ultimately, its purpose.

First and foremost, you need to be aware that ISL will only function on ports with a speed of 100 Mbps or greater. That is, you cannot use ISL in conjunction with a 10 Mbps port. That shouldn t be an issue, since most Cisco Catalyst switches provide at least one or two Fast Ethernet ports, even on lower-end models like the 1912. Secondly, the ports on either end of the link need to support and be configured for ISL.

ISL is referred to as a VLAN tagging method. Essentially, what ISL does is tag a frame as it leaves a switch with information about the VLAN that the frame belongs to. For example, if a frame from VLAN 99 is leaving a switch, the ISL port will add information to the frame header, designating that the frame is part of VLAN 99. When this ISL frame reaches the port at the other end of the switch, it will look at the ISL header, determine that the frame is meant for VLAN 99, will strip off the ISL information, and will forward it into VLAN 99. One of the issues with VLAN tagging is that by adding information to an Ethernet frame, the size of the frame can move beyond the Ethernet maximum of 1518 bytes, to 1522 bytes. Because of this, all non-ISL ports will see frames larger than 1518 bytes as giants, and as such, invalid. This is the reason why a port needs to be configured for ISL in order for it to understand this different frame format.

One VLAN tagging is configured on the ports associated with the link connecting switches, the link is known as a "Trunk Link". A trunk link is capable of transferring frames from many different VLANs through the use of technologies like ISL or 802.1q.

A better strategy here would be to configure ISL tagging on one of the router s Fast Ethernet interfaces, and then configure ISL on the connected switch port. This configuration, also known as a "router on a stick", would allow the router to process the traffic of multiple VLANs, and route traffic between them. We ll get into the details of routing within the next few articles.

Beyond its intended purpose of configuring trunk links between switches, ISL is often used in other ways. For example, it is possible to purchase network interface cards that support ISL. If a server were configured with an ISL-capable network card, it could be connected to an ISL port on a switch.

This would allow a server to be made part of multiple VLANs simultaneously, the benefit being that hosts from different broadcast domains could then access the server without the need for their packets to be routed. While this may seem like a perfect solution, you need to remember than the server would now see all traffic from these VLANs, which could negatively impact performance.

I hope this article has provided you the good information about the Vlans.

This articles is submitted by Kashif Raza http://www.networkingtutorials.net



Bookmark it: