EMC

Transient Voltage Surge Suppression (TVSS)

SaltLake City 801. 366.4100 / 800. 433.4548   -    Denver 303. 574.9448    -    Boise 208. 573.1038    -    Portland 503. 616.4677
Transient Voltage Surge Suppression

Table of Contents

  • Why Protect Against Surges?
  • How to Protect Equipment, Resources and Investments
  • The Latest from Innovative Technologies
  • Benefits of Power Event Monitoring
  • Vanguard Surge Suppression
  • I.T. Equalizer
  • I.T. Critical Load Protection
  • Downloads
  • Why Protect Against Surges

    What Are Surges?
    A power surge is a brief, yet powerful shock in the electrical power supplied.
    They are also referred to as transients, spikes and impulses. These dangerous surges can severely damage or even destroy your electrical equipment.

    Transient voltage surges can cause semiconductor degradation, equipment destruction, control process disruption, and circuit board damage. According to Business Week the estimated cost of lost time, equipment repair, and replacement is 26 billion dollars per year. Only 20% of transient surges are caused externally. 80% of all surges are caused internally, generally by turning power equipment on and off.

    How To Protect Equipment, Resources, & Investments

    System Shield Solution
    For total facility protection, we recommend the System Shield Solutions. This is a highly effective form of protection for your electrical equipment. With System Shield Solutions, you get protection all over your power system. Starting with the incoming power panels, to the individual equipment. Basically, the system requires 3 separate TVSS units. These are required at the following locations, transformers, distribution panels, and branch panels, individual circuits, telecom, and data circuits. All of which are extremely vulnerable to high transients.

    Knowing the right part, in the right place is critical in the effectiveness of surge suppression. Another major factor in the quality of surge suppression, is to make sure installation is performed by a trained professional.

    The Latest from Innovative Technology

    Power Event Monitoring (PEM)
    The Innovative Technology TVSS Power Event Monitor helps ensure the uninterrupted and efficient operation of your power system by continuously monitoring, logging and reporting power quality and transient voltage surge events in real time with a time- and date-stamped event recording. This critical history log is then immediately available to download via infrared, Ethernet or a wireless network, wherever you wish to receive it. Device- and computer-based intuitive interfaces allow for access of up to 5,000 stored events.

    The TVSS Power Event Monitor is integrated into Innovative Technology Protector Series TVSS devices, meaning no additional footprint. It offers unparalleled surge protection and the added benefit of ongoing, comprehensive system monitoring that includes a diagnostic view of your electrical distribution system.

    The Power TVSS Event Monitor detects, monitors and reports on a wide array of power quality events – including transient surges, sags and swells, power outages, phase voltage and phase loss. It allows facility managers to integrate power event data into new or existing electrical distribution/energy management systems and to recognize optimization opportunities for the electrical distribution system.

    Paramount among the benefits of the TVSS Power Event Monitor is the accessibility of this information. It provides notification of events and communicates them, with time and date-stamp, via Modbus (TCP or RTU), infrared to a hand held device or over the Internet using a personal computer.

    In addition to providing enhanced ease of use with these access options, the TVSS Power Event Monitor is a means of avoiding injury as a result of arc flash explosions. Between 1992 and 2001, there were 17,101 injuries caused by electric arc flash burns.

    The TVSS Power Event Monitor allows personnel to access the data critical to the efficient operation of your power system without being exposed to the danger of arc flash. Data can be retrieved via infrared outside the arc flash boundary to any hand held device equipped with Windows Mobile software and TVSS Power Event Monitor hand held software. Or by tying into your Ethernet backbone, you can access data from anywhere – through your LAN to the desktop or to a pocket PC via wireless communications. If your facility has an existing building automation system using the standard Modbus protocol, the TVSS Power Event Monitor can be directly added to the system.

    Benefits of Power Event Monitoring

  • Remote monitoring capabilities result in immediate notification of out-of- tolerance conditions within a facility electrical distribution system
  • With safety in mind, the Power Event Monitor is designed to allow for the access of data via remote communications, removing the potential hazards of arc flash conditions
  • Data output allows troubleshooters to quickly identify the origin of harmful system power anomalies whether internally or externally generated
  • Data transfer capabilities allow facility managers to integrate power event data into new or existing electrical distribution/ energy management systems
  • Advanced diagnostics allow personnel to recognize optimization opportunities for the electrical distribution system
  • Stored event records aid in identifying the source and location of power quality disturbances
  • Innovative Technology - The Protector


    Features Benefits
    Symmetrical current distribution and high current density capability. Fault current tested at 200 kAIC and surge current tested to in excess of rated per mode peak surge current, per NEMA LS-1. Ultra-low junction impedance connection points. Up to 20-year warranty. Long term reliable solutions to transient problems
    Integrated design utilizes advanced computer modeling and circuit simulation for total coordination for all circuit elements. Assures balanced performance with low measured limiting voltage.
    ATN- Suppresses both switching generated ringing and high-energy impulse generating transients. Provides highest level of protection for critical and sensitive loads plus effective real world UL 1283 listed EMI/RFI filtering. Superior performance is independently tested and verified. Confidence that sensitive equipment will be protected from the corrosive effects of frequent transients.
    LED per phase diagnostics and dry relay contacts continuously monitor the SPD and electrical system. Optional S.M.A.R.T. diagnostics adds and audible alarm, surge counter and phase loss monitor. Quick assessment of TVSS functionality. Optional surge counter indicates transient activity that the TVSS has addressed. Instant indication of suppression circuit faults and circuit status.
    All-mode protection- Assures all possible transient paths to load equipment are covered. Provides highest level of load equipment protection. Confidence that all possible and probable paths are covered.
    NEMA 4 and 4X enclosure- Allows weatherproof installation in the most demanding industrial and commercial environments. Strength, versatility and wide array of installations.

    Vanguard Surge Suppression


    Features Benefits
    Dual-fuse Multi-element Individual Component Level Fusing Provides rapid circuit interruption under high fault current (silver link and low current [thermal element]) events. Allows for direct connection to electrical bus without use of external fusing. 200k AIC fault current rated and tested system. Passes full rated per mode peak surge current.
    Transient Control System (TCS) Integrated design utilizes advanced computer modeling and circuit simulation for total coordination of all circuit elements.
    Advanced Surge Path Technology Symmetrical current distribution and high current density capability. Fault current tested to 200kAIC and surge current tested to in excess of rated per mode peak surge current. Ultra-low junction impedance connection points.
    Multi-stage Hybrid Active Tracking Network (ATN) Suppresses both switching generated ringing and high-energy impulse generated transients. Provide highest level of protection for critical and sensitive loads plus effective real world EMI/RFI filtering. Superior performance is independently tested and verified.
    S.M.A.R.T. Diagnostics (Optional) Comprehensive dual mode monitoring of critical system functions. Real time audible and visual reporting of unit status, phase loss/protection loss, transient events (reset and alarm mute) and event history recording for trend analysis.
    Uni-Module Disconnect Switch (Optional) Rotary Disconnect with safety interlocking mechanism. Ideal for service entrance locations.
    Multi-position Mounting Feet Easy to install in the most difficult locations.

    I.T. Equalizer


    Features Benefits
    High Energy Capable Surge Paths
  • Unsurpassed durability
  • High frequency, high surge current printed circuit board design
  • Rugged Steel Enclosure Threaded Conduit Fitting and Integral Mounting Feet
    Threshold Response Network
  • Suppresses high energy impulse transients
  • Provides robust protection
  • Redundant MOVs
  • Peak Surge Current tested to NEMA LS-1
  • Active Tracking Network (ATN) EMI/RFI Filter
  • Suppresses switching generated ringing transients
  • Nanosecond response time
  • Filters disruptive noise
  • UL1283 listed
  • Circuit Diagnostics
  • Provides indication of system status
  • Dry relay contacts
  • LED Indicators
  • I.T. Critical Load Protection


  • Available for single phase and three phase applications, from 48Vdc-600Vac
  • Compact NEMA 4 enclosure
  • All mode protection
  • Ultra-bright LED indicators
  • Maintenance-free, with 10-year free replacement warranty
  • I.T. Equalizer


    Warranty IT offers a 20-year warranty, twice as long as closest competitor.
    Cost TVSS units are far less expensive than other alternatives like U.P.S. (Uninterruptable Power Supply System) and Custom Solutions.
    Peak Capacity IT's comparatively high peak capacity enables the suppressor to allow less voltage through than its competitors (saves equipment).
    Small Size Contributes to Placement Convenience TVSS' smaller size enables the units to be mounted on the panels, which shortens lead length and allows for quicker reaction time during surges.
    Sine wave Tracking Provides Protection for Critical and Sensitive Loads IT is one of few surge protection providers who use sine wave tracking.
    System Shield IT provides this unique form of protection which protects all electronic equipment within your facility.
    * All information and resources obtained from Eaton Transient Voltage Surge Suppression 2005 Product Line Brochure

    TVSS Downloads

    TVSS Product Line Brochure Product Inspection & Maintenance Guide
    Protector Series  S.M.A.R.T. Series
    PTX048_PTE048 PTX065_PTE065
    PTX080_PTE080 PTX160_PTE160
    PTX240 PTX300_PTE300
    PTX400_PTE400 PTX640_PTE640
    PTX-750DC-2LS Introduction to TVSS presentation
    Power Event Monitor FAQ Power Event Monitor Brochure 1
    Power Event Monitor Brochure 2 The Power Efficiency Brochure
    Industrial Engineering Services Brochure EMC Line card