How correct storage can extend electric motor life
Think of your business as a machine – there’s a lot of ‘cogs’ required to keep your machine running smoothly. If one of those cogs fails, the process can ground to a sudden halt and result in loss of both time and revenue. Your electric motor is just one of the cogs that you need to ensure is always in good working order.
To ensure your electric motor is well protected in any potential ‘downtime’, the correct storage is essential. Poor care and storage can significantly decrease the lifespan of your electric motors.
Here, motor repair specialist Houghton International explains the optimum storage methods to extend your motor life:
Determine how long it will be stored for
Weathering conditions need to be considered when storing your electric motor – whether you are storing it for less than a month or more, protecting it from weathering should be your main concern. Maintaining its winding temperature, so it remains 5-10°C above the ambient, is vital.
If you plan is to store the motor for longer than one month, there will be other factors you need to consider. For example, you will need to schedule periodic maintenance to ensure it remains up-to-date and protected.
You should consider the follow factors when planning to put your electric motor in storage:
Indoors or outdoors?
The risk of weather damage can be significantly reduced if you store the motor indoors. It should be stored in a clean, dry and heated space, ideally where not exposed to weathering.
Space limitations can mean that you have to store your electric motor outdoors. Loose tarpaulin should be used to cover the motor when stored in an outdoor area – it should touch the floor to cover it completely, however you must ensure there is room to aid air circulation and minimise condensation.
Avoid storing the motor where there is risk of flooding.
Consider vibration sources
You’ll need to consider potential damage caused by ambient vibrations. You need to protect internals bearings even in low levels of vibration exposure, so try to avoid storing you motor in a space that’s exposed to vibrations from heavy construction equipment, production floors, busy roads and rail lines.
Where this isn’t possible, again due to limited storage space, you should lock the shaft of the motor to prevent damage.
Condensation damage to the motor windings can significantly decrease the lifespan of the motor. Keeping control of the temperatures in storage is recommended – around 5-10°C above the ambient. If the temperature is difficult to control, use space heaters or try ‘trickle heating’ one phase of the winding on low voltage. Blowing warm air into the heater can help keep the winding warm too.
With outdoor storage, motors can be exposed to pests like insects, rodents and birds. If these enter the motor, they can damage the winding insulation and block the drain openings and ventilation. You can take precautions to reduce this risk.
Correct insulation resistance
To prevent further issues, ensure that your motor is at the correct temperature for insulation resistance.
Oil versus grease
To prevent corrosion and contamination, it is important to keep motors lubricated when dealing with oiled or greased motors.
When storing your motor, you need to clean out the grease fitting, remove the drain plug and insert compatible grease. After it has been lubricated, we recommend you run the motor for around 30 minutes without the drain plug, to push out any excess or old grease.
When planning to store for many years, the grease will likely harden and block the pipes. In this case, when taking the motor out of storage you will need to take the motor apart and remove the old grease before relubrication.
The oil must be removed before you move the motor to prevent spillage and contamination.
Once transported to your chosen storage space, the motor’s reservoir should then be refilled with compatible oil, as well as rust and corrosion inhibitors. Without overflowing, the oil should cover all the bearings. Again, when removing from storage, the oil should be drained before the motor is moved.
Your electric motor is a vital part of your plant operations. If it’s going to be out of action, proper storage is essential in order to keep it in full working order — saving your business both time and money. Put the effort in now and reap the benefits later.
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Siemens: Providing the First Industrial 5G Router
Across a number of industry sectors, there’s a growing need for both local wireless connectivity and remote access to machines and plants. In both of these cases, communication is, more often than not, over a long distance. Public wireless data networks can be used to enable this connectivity, both nationally and internationally, which makes the new 5G network mainframe an absolutely vital element of remote access and remote servicing solutions as we move into the interconnected age.
Siemens Enables 5G IIoT
The eagerly awaited Scalance MUM856-1, Siemens’ very first industrial 5G router, is officially available to organisations. The device has the ability to connect all local industrial applications to the public 5G, 4G (LTE), and 3G (UMTS) mobile wireless networks ─ allowing companies to embrace the long-awaited Industrial Internet of Things (IIoT).
The router can be used to remotely monitor and service plants, machines, as well as control elements and other industrial devices via a public 5G network ─ flexibly and with high data rates. Something that has been in incredibly high demand after being teased by the leading network providers for years.
Scalance MUM856-1 at a Glance
- Scalance MUM856-1 connects local industrial applications to public 5G, 4G, and 3G mobile wireless networks
- The router supports future-oriented applications such as remote access via public 5G networks or the connection of mobile devices such as automated guided vehicles in industry
- A robust version in IP65 housing for use outside the control cabinet
- Prototypes of Siemens 5G infrastructure for private networks already in use at several sites
“To ensure the powerful connection of Ethernet-based subnetworks and automation devices, the Scalance MUM856-1 supports Release 15 of the 5G standard. The device offers high bandwidths of up to 1000 Mbps for the downlink and up to 500 Mbps for the uplink – providing high data rates for data-intensive applications such as the remote implementation of firmware updates. Thanks to IPv6 support, the devices can also be implemented in modern communication networks.
Various security functions are included to monitor data traffic and protect against unauthorised access: for example, an integrated firewall and authentication of communication devices and encryption of data transmission via VPN. If there is no available 5G network, the device switches automatically to 4G or 3G networks. The first release version of the router has an EU radio license; other versions with different licenses are in preparation. With the Sinema Remote Connect management platform for VPN connections, users can access remote plants or machines easily and securely – even if they are integrated in other networks. The software also offers easy management and autoconfiguration of the devices,” Siemens said.
Preparing for a 5G-oriented Future
Siemens has announced that the new router can also be integrated into private 5G networks. This means that the Scalance MUM856-1 is, essentially, future-proofed when it comes to 5G adaptability; it supports future-oriented applications, including ‘mobile robots in manufacturing, autonomous vehicles in logistics or augmented reality applications for service technicians.’
And, for use on sites where conditions are a little harsher, Siemens has given the router robust IP65 housing ─ it’s “dust tight”, waterproof, and immersion-proofed.
The first release version of the router has an EU radio license; other versions with different licenses are in preparation. “With the Sinema Remote Connect management platform for VPN connections, users can access remote plants or machines easily and securely – even if they are integrated in other networks. The software also offers easy management and auto-configuration of the devices,” Siemens added.