Power BackUp Sytems

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We have various systems available including systems that can be wired into your DB board. Every household or office has different requirements.
If your enquiry is for a, please email sales@two-tech.co.ke and you will receive a response with relevant information.

Be it a home backup system or a UPS system for office equipment, we need to know your power requirements in order to quote for what you need. Please email us the information below:

1. What type of load do you want to connect to the system?
2. How many hours of backup time do you desire to have?

We recommend you speak to one of our design engineers who can assess your requirements and get the required information. Kindly book for a free-of charge site assessment visit by contacting our sales team.

GENERATORS V/S INVERTER BASED/UPS BACK UP SYSTEMS
Generators are very suitable for larger installations but not necessarily suitable for private homes/small businesses as they are:

  • Very Noisy
  • Require petrol/diesel
  • Produce polluting fumes
  • Usually don't have automatic switchover
  • Producing vibrations
  • High maintenance cost

In contrast, "The inverter based/UPS backup systems" are ideal for homes/guesthouses/offices/farms/small business applications as they are :

  • Noise free
  • Fully automatic operation
  • Do not require petrol/diesel
  • Do not produce fumes
  • Seamless automatic transfer
  • Easy installation
  • Automatic recharging of batteries
  • Very reliable, Modern Technology
  • Basically maintenance free
  • Can work in conjunction with Solar (Can be added later)
  • Does not have to be installed on a ground floor

HOW DO THESE SYSTEMS WORK:
The unit is permanently connected to utility power so that while mains is present the battery charger recharges the batteries and keeps the batteries fully charged until a power failure occurs. The equipment you want to back up is also permanently connected via the system. In case of a power failure the backup system automatically switches over, via an extra fast transfer switch to the inverter, which will continue to provide power to the equipment within 15 msec. This is extremely fast and standard equipment like computers, servers, TVs, DSTV decoders, microwaves, fans, etc. are unaffected.
When utility power returns, the whole procedure is reversed and the unit will switch back to utility power and will automatically start re-charging the batteries. Your equipment remains connected to the system even when power is restored. The whole process is fully automatic.

HOW LONG WILL THE INVERTER SYSTEM RUN WHEN THERE IS A POWER FAILURE :
The amount of backup time is determined by the size of the connected battery bank and the load drawn from the system. The backup time is normally calculated at full load (i.e. if the system is a 2200VA system, full load is 2200VA. If you remove some of the load, then the backup time will extend relative to the power used. For example, if your system is calculated at 6 hours backup at full load and you reduce your load to 25%, you backup time can be extended up to 24 hours.

HOW LONG DOES IT TAKE TO CHARGE THE BATTERIES WHEN UTILITY POWER RETURNS :
The recharge time of the batteries depends on how much power was removed from the batteries during a power failure. The recharge times in the catalogues is indicated at full battery discharge.

HOW ABOUT INSTALLATION :
The smaller systems can be used as stand-alone systems or can be wired into your DB board. The larger systems can also be used as stand-alone systems but it is by far more convenient if they are hard-wired into your DB board. Our systems also integrate protection systems against spikes and surges.

WHAT ABOUT MAINTENANCE?
These systems require minimum maintenance. The batteries are basically maintenance free and have a life span of 3 - 5 years. These are high quality semi-sealed lead calcium standby batteries which, under normal circumstances, do not generate any excessive fumes. It is recommended that the battery sets be installed into a battery cabinet or stand and are locked in a room, with some ventilation, where access can be controlled. As with all batteries, these batteries can be dangerous if tampered with.

WARRANTY?
The systems are warranted against faulty workmanship, parts and manufacturing defects for one year which does not apply if the unit is incorrectly installed or tampered with. For the batteries the original manufactures warranty applies.


INVERTER BACKUP SYSTEM OR A UPS SYSTEM?
A UPS system is designed to backup sensitive equipment like computers, medical equipment, telecommunications equipment, etc. Standard UPS systems have small internal battery sets and can only provide short backup times of approximately 5 - 10 minutes which cannot be extended as the internal battery chargers are small and can only cater for the internal battery sets they were designed for. Additional or external batteries cannot be connected to these UPS systems.
There are also long backup UPS systems available which can be supplied with external battery sets to provide backup for long hours. The double conversion online UPS systems have no break whatsoever and the sensitive equipment will always run on electronically produced power and is not directly connected to the mains power. These can be configured to provide long back up times as may be required.

DOUBLE CONVERSION/TRUE ONLINE UPS SYSTEMS
This type of UPS System is aimed at the professional, medical/industrial and upper business market and is recommended when you have a very dirty, noisy & unreliable mains supply. It is also recommended for all critical Computer and medical applications. This type of system has the highest protection level available as you always run on electronically produced power.