Online UPS Buying Guide

1.    Why do we need a UPS – An UPS is an unwelcome requirement. Nobody wants to buy a UPS, but it's necessary to secure your expensive equipment and keep your business running in the event of a power outage. It is far superior to stabiliser in terms of protection. Not only does it have a more stable output voltage than a stabiliser, but it also provides a pure sine wave output and a stable output frequency at 50 Hz. It also offers complete isolation from input line disturbance. The main advantage of using a battery backup during a power outage is that it allows you to save your data or work in progress.

2.   What is Off-Line & On-Line UPS - The off-line UPS is similar to our home inverter. Your load operates on a direct mains input supply all of the time, and only when there is a power outage is it switched to an inverter with a few milliseconds pause. Many businesses do not have On-Line UPS in capacities lower than 3 KVA. They distribute off-line UPS under the Line Interactive UPS tag and market it as On-Line UPS. On the other hand, on-line UPSs always operate on inverter output.

3.   Advantages of On-Line UPS -Pure Sine Wave Output, Fixed 50 Hz Output Frequency, Extremely Stable Output Voltage within +/- 1%, and Absolute Isolation from Mains Input Disturbances are all advantages of On-Line UPSs. It is a complete solution to all of your power issues.

4.  Why In-built Isolation necessary - True On-Line UPS must have an inbuilt isolation transformer to protect your expensive instruments from Mains Input Supply disruptions such as surges caused in nearby locality due to switching on pumps, compressors, and lathe machines. Isolation transformers reduce these to a bare minimum, preventing costly equipment damage. However, many manufacturers choose not to use these built-in isolation transformers in order to reduce UPS cost. That is why they are inexpensive and compact. We always use Inbuilt Isolation Transformers in all our UPS systems, even in our 3 KVA UPS.

5.  The Benefits and Drawbacks of Using a Bypass Facility - The majority of companies have a bypass option in their UPS. The advantage is that if your UPS completely fails, i.e. the inverter part fails, the load is shifted to the mains input supply and any work that is currently being performed is saved. However, there are several drawbacks, such as -

• a.  First and foremost, why should a UPS fail when it is referred to as an uninterruptible power supply? UPS failure should be extremely rare and  not frequent.
• b.    Many UPS first power up on bypass because their inverter could not handle the high in-rush currents produced by all instruments or machines at the time of power on. They turn on the bypass first, then transfer the load to the inverter after a few seconds. We have a special design in our UPS to handle high inrush currents. As a result, in our case, the load is always switched on the inverter because we do not provide bypass.
• c.    Most of the UPS, particularly well-known foreign brands, start working on bypass and remain there if any machine is switched on or off during operation. If the input power goes out during that time, it will be unable to provide battery backup and your instruments may be damaged. It never happens in our case because UPS does not trip during such incidents.
• d.   Neutral lines of Input Supply and Neutral from UPS are commonly used to provide Bypass capability. Any faults or disturbances on the input supply line are transmitted to the output, and even if an isolation transformer is provided, it does not provide true isolation. In our UPS, the output Neutral is regenerated and completely separate from the Input Supply Line Neutral. It provides true isolation from the input and protects your load.
• e.   If a bypass is present, the load must be transferred from the inverter to the bypass within 20 milliseconds.In the event of a failure or a momentary trip, the inverter output must be synchronised with the frequency of the input mains. As a result, the output frequency of the UPS is the same as the input frequency. If the input frequency is 49 hertz, the output frequency is also 49 hertz. In our case, the frequency is always perfect 50 Hz. Other UPSs output frequency is 50 Hz only when they are operating on battery.
• f.  Whenever bypass is employed, the output neutral to ground voltage is always equal to the input supply voltage. It can range between 1 and 5 volts. In our case, you can ground the neutral output to dedicated ground, so it is always zero.

6.     Why is our price higher? – Isolation Transformers are not used by many suppliers. The majority of them import control cards from China and assemble UPS here. It's a screwdriver's technology. We do everything here, from the design stage to the finished product. Furthermore, some suppliers frequently provide used / second hand UPS as if they were new. As a result, they are inexpensive.  That is why there are so many cheap UPS for sale on the internet. But a high-quality product, which is long lasing  will always be more expensive.

7.     After-Sales Service – The majority of Indian suppliers import spare and control cards from other countries, especially China. If they malfunction after 3-5 years, they cannot be repaired or are very expensive to repair. Alternatively, they often claim that technology has changed and push the consumer to purchase new UPS. There is no such issue in our situation. Our UPS has been in operation for the last 16-20 years and we continue to provide service as required. Our UPS has a failure rate that is either non-existent or very low. That is why our regular customers place repeat orders with us. The service requirement is very low.

8.     Replacement Scam - Some Manufactures also promise that instead of servicing, they will substitute with another UPS. However, they are replaced after a long time and replace with an old UPS. We built the UPS in such a way that their control cards can be easily replaced with other rated UPS in that category without changing a single component. For example, in a three-phase UPS, any card from 10 KVA to 100 KVA can be replaced, except the driver card. As a result, maintenance is a breeze. There is never a shortage of spare parts.
 
You can trust our UPS for excellent performance with very long Life.  Ours is a Fit & Forget UPS.