Home | Contact - FAQ's




 
































 
Frequently Asked Questions
 
Why choose Gruber Power Services?

 Selling service agreements is akin to an insurance company selling premiums and buying risk.  Like an insurance premium, you pay your service provider to supply free parts and labor to service and maintain your critical equipment. 

There are no bargains in the insurance business, it all boils down to ability to deliver, on time, with qualified resources, and a large enough risk pool weather any service issue, at any cost.   Selling risk to a shaky, understaffed, undercapitalized service provider actually adds to rather than reduces risk.

The critical power independent maintenance industry is full of guys working out of garages, buying up risk with little chance of delivering when the "big problems" come along, or the quick flash in the pan companies who do not realize contract revenue is not expansion revenue, but revenue reserved for servicing predictable costs to meet their obligations in the risk pool.

With 23 years of solid sustained and controlled growth, selling your risk to Gruber Power Services is a sound investment.

What does kVA mean? VA mean?
The output of a UPS or Power Conditioning product is measured in volt-amperes or VA (output voltage x output current). The term kVA refers to kilo-volt-amperes or VA x 1000.  more...

What is the wattage and VA relationship?
Put simply, real power (watts)/apparent power (VA) = power factor.   more...

What is the difference between an on-line and off-line UPS?
On-line UPS implies that an electronic inverter is constantly supplying AC power to the load under all modes of operation.  Off-line UPS supply input utility to the load during normal operation and revert to a battery-powered inverter during utility failures.   more...  

Is an on-line UPS better?
On-line UPS units provide better overall power protection to the load than off-line.  This protection includes power conditioning, regulated voltage and frequency, and zero translation time to battery during a utility failure.   more...

How do I size a UPS for my application?
Multiply the voltage rating of the equipment by the current rating of the equipment to obtain a VA rating. The UPS must be rated to deliver at least this VA rating. See the "How to Size a UPS" section of our web site for more info.   more...

Can a single UPS support more than one workstation or server?
Yes, if the UPS is sized large enough for the application. Maintaining close proximity of the hardware to be supported is preferred to long distance electrical runs, which can cause unwanted ground current imbalances. Our technical staff is available to assist in the design of the electrical distribution.

Can we change, or have the electrician change the voltage taps inside the UPS module to change the input voltage wiring?
Any modifications inside the UPS should only be attempted by a qualified trained UPS technical resource, or Field Engineer.

How does Gruber Power Services calculate battery run time?
Battery run times are calculated based watts per battery measurements referred to in our product technical specifications per manufacturer.   more...

Can you monitor and control UPS(s) remotely?
Yes, Gruber Power offers Remote Monitoring Hardware which allows customers to monitor power status, site environmental conditions, and any dry contact devices remotely. These features can tie into network management software software providing instant notification and or orderly network shutdowns.   more...