EN
For industrial buildings, data centers, hospitals, and office buildings alike, voltage fluctuations aren't just minor inconveniences—they are an insidious source of cash drain. Machine breakdowns, motor faults, control system problems, premature aging of components – all these issues stem from the same underlying cause of unstable electricity. The TNSB Three Phase Stabilizer completely eliminates all of these problems, ensuring a pure and steady output voltage. However, the purchase should be justified, not just on the price tag, but on the actual total cost of ownership and the return on investment that would be realized. Below is a practical way to calculate the total cost of ownership.
Initial Equipment and Installation Outlay
The equipment and installation costs of a TNSB Three Phase Stabilizer will vary greatly depending on the power rating and control type (SCR, relay or servo motor technology), enclosure classification, and whether or not it is equipped with features such as remote monitoring or transfer switches. Larger and more advanced stabilizers naturally cost more, but the investment in equipment protection must correlate with the value of the machinery being protected.
The installation costs—include electrical labor for wiring the input, output, and power wiring, protective circuitry (circuit breakers or fuses) and any physical labor or structural work needed to house and mount the equipment. A simple, clean installation with proximity to the existing electrical panels, an empty conduit run and an empty breaker slot may add minimal additional cost beyond straightforward labor and materials. Conversely, long cable runs to remote locations, addition of separate external bypass panels or seismically rated mounting will dramatically increase the installation cost. Have an electrician come on site to look for unforeseen issues such as undersized feeding circuits or insufficient grounding before obtaining quotes.
Direct Savings from Reduced Equipment Failures
Voltage instability kills electrical equipment. When motors operate at lower-than-rated voltage, they draw increased amperage, causing overheating of the windings and premature insulation breakdown. Sensitive controls will power down when a voltage sag drops below their dropout rating. Lighting ballasts, Variable Frequency Drives, and electronics are all susceptible to voltage spikes.
The TNSB Three Phase Stabilizer maintains a narrow tolerance around nominal output voltage regardless of significant variations on the input. For a large manufacturing plant with potentially dozens of motors and hundreds of electronic loads, eliminating voltage related failures will result in significant savings of replacement parts, emergency service call-outs, and entirely new equipment. Customers have reported dramatic reductions in power quality related service calls after installing a stabilizer.
Downtime Avoidance and Productivity Gains
The hidden cost of unstable voltage that far outweighs the repair costs of affected machinery is unplanned equipment downtime. Any stoppage in production will have associated costs which will not only be for repair, but also for missed delivery schedules, idle labor, and expediting charges for late shipments. For those businesses involved in continuous processing the price of any stoppage can be astronomical.
Installing the TNSB Three Phase Stabilizer on critical feeders preempts such stoppages. During sags that would cause normal equipment to trip, the stabilizer briefly rides through the condition before its correction circuits smoothly brings the voltage back into tolerance. For a business that has experienced several such voltage related outages per year, there will be no additional outages. At tens of thousands of dollars per hour of downtime, the annual avoidance alone will pay for the total installation price in less than one year!
Extended Equipment Life and Deferred Capital Spending
Useful equipment life is heavily dependent on voltage stress. Elevated operating temperatures—(resulting from low-voltage-induced overcurrent) drastically reduce the useful life of insulation. Voltage spikes stress semiconductor junctions. In the span of many years, a piece of equipment that operates with a properly sized TNSB stabilizer will last substantially longer than its unprotected equivalent.
The addition of a TNSB Three Phase Stabilizer on equipment will extend the life of machinery over a considerable number of years. For facilities that operate a large amount of expensive and critical machinery such as motors, variable frequency drives, and sensitive electronics, significant capital can be delayed. The time value of money alone dictates that this deferral of expense is quite beneficial.
ROI Calculation Summary
When return on investment is computed, the TNSB Three Phase Stabilizer excels: equipment and installation costs are offset by four clear financial benefits: reduction of direct costs—from equipment failure—productivity gains and avoided downtime, and capital spending deferral. Even using conservative figures, the stabilizer pays for itself in less than one year and earns a remarkable return on the investment for over fifteen years.
Summary
The equipment and installation costs for a TNSB Three Phase Stabilizer can be calculated and then its return on investment assessed in four ways: direct savings through avoidance of failures, revenue generation from avoided downtime, gains in productivity through continued operation, and avoidance of capital expenditures for early replacement. Through twenty years of experience and substantial internal investment in research, design and development, along with designation as an official drafter of national industry standards, we engineer TNSB stabilizers that achieve excellent financial results. Please contact us for a facility-specific ROI analysis.