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YOU ARE HERE: ISD / Drives / Harmonic Filters
As power utilities continue to be pushed to the limits of supply capability, rising energy costs and decreasing power quality will continue to be an issue for consumers. Users continually search for ways to not only reduce energy costs, but also ensure their processes will continue to operate no matter the quality of the incoming power. To accomplish this, more and more variable frequency drives, UPS systems, and other non-linear loads, are being installed. For over a decade, TCI has been building harmonic mitigation filters. From waste water treatment facilities, commercial buildings, and factory floors to harsh mountain environments, reliable TCI filters have been installed to the satisfaction of thousands of customers.
| HG7 HarmonicGuard Series
(Drive Applied Input Filter)
The next generation of the HarmonicGuard® Series filter has arrived. TCI’s considerable experience with harmonic mitigation technology has led to the development of the HG7; a filter design based on proven technology with significantly improved performance.
Superior HG7 Performance
In general, the HG7 performs as well as, if not better than, any filter technology currently available on the market today. Harmonic distortion at the input terminals is typically between 5 and 7% TDD. With the HG7, voltage drop on the DC bus of a variable frequency drive is less than 2%. Since the filter uses TCI’s reactor technology, nuisance tripping is eliminated and drive uptime is dramatically increased. While attenuating harmonic distortion, the filter also dramatically improves true power factor.
Multiple package options will allow TCI customers to choose the right filter configuration for the application. Since every power system is different, harmonic mitigation requirements will differ, and even IEEE limits change based on the system loading characteristics. The HG7 product returns the power of choice to the customer, allowing for different configurations to achieve different performance and monitoring results. It is TCI’s intention to provide the maximum value to our customers by offering the package and performance necessary for the application.
Standard Package
The Standard Package includes everything necessary for an application to meet IEEE 519 standards. From the highest quality harmonic grade capacitors on the market to the extraordinary reactors, this filter will meet the majority of application requirements found today. This cost effective product is available as either an open panel version or in a UL Type 1 enclosure. The open panel is perfect for inclusion in a MCC section or easy installation into industry standard enclosures. The UL Type 1 enclosed units maintain the same vertical profile as the open panel design. This design is perfect for applications where floor space is at a premium.
Power Monitor Package Option
The Power Monitor package includes contactors and filter monitoring equipment. For units rated at 60 horsepower and below, the XM package utilizes indicator lights for filter operation and fuse failure. From 75 HP through 350 HP, the XM package uses the HG2™ Protection Monitor/Harmonic-Power Factor meter. The HG2™ Monitor Board displays operating information such as ITHD, VTHD, total filter amps, true power factor, and a series of fault and protection codes including over-current, over-voltage, and phase imbalance. It is also a programmable safety monitor, capable of bringing the filter off-line in a fault condition, or when the drive goes into a fault condition. For those applications that require the removal of capacitance for the start-up of stand-by generators, the contactors can remove the harmonic duty capacitors. Above 400 HP, the XM package includes a monitor board which has indicator lights to advise the mode of operation and when a fault should occur.
Component Package Option
This package includes all of the major components that are found in the Standard Package. Ideal for integration into drive sections or other end-products, this option is ideal for the experienced drive integrator. This option does not include panels, enclosures, heating or cooling devices, wire, or lugs. It is also important to note that the inclusions of the Power Monitor package are also not available as a component set. |
| | | | KMG MotorGuard Series
(High Performance Output Filters)
In the continuing search to improve energy efficiency, many commercial and industrial power systems are turning to the technology of PWM (pulse width modulated) output power supplies. The ability to convert standard utility power into variable-frequency, variable-voltage electrical power has led to more efficient and economical installations. One of the drawbacks of the use of equipment such as adjustable frequency drives and variable frequency/voltage power supplies is that the output of such PWM devices is a square wave form. Many applications require a more sinusoidal output, thus ruling out these economical and efficient solutions. The MotorGuard High Performance Output Filter has been designed to be installed at the output terminals of PWM devices. The KMG filter converts the PWM wave form to a near sinusoidal wave form, allowing sensitive applications to take advantage of the efficiencies and savings that PWM output power supplies offer.
Typical Applications
- Extreme long motor lead lengths. Specific applications can reach 15,000 feet.
- Low voltage PWM power supply to medium voltage motor.
- Multiple motor applications such as conveyors, blowers, pumps, and fans.
- Test floor and test stand applications.
- Shore to ship power for non-60 Hz systems.
- HVAC systems to reduce audible noise within air distribution ducts and fans.
Benefits
- Reduced common mode current
- Reduction in bearing currents
- Reduction in instrumentation reference to ground noise
- Reduced motor noise, vibration, and heat
- Elimination of torque ripple
- Elimination of voltage wave reflection
- Enables systems to meet NEMA MG-1, Part 31 specification
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