Help with Harmonic Filters specifications:
General Specifications
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| FIlter Type | |||
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| Passive | Passive filters are built with a series of passive components, such as resistors, inductors, and capacitors. They are the most common type of harmonic filter, and are available for all voltage levels. Typically, passive filters are built-up by combinations of capacitors, inductors (reactors), and resistors. | ||
| Active | Active filters are available mainly for low-voltage networks. They are very fast electronic devices that insert negative harmonics into the network, thus eliminating undesirable harmonics. Active filters are built with active components such as insulated gate bipolar transistors (IGBT). They can eliminate many harmonic frequencies. | ||
| Other | Other unlisted or proprietary filter types. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Signal Type | |||
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| Single Phase AC | Single-phase AC is a type of alternating current (AC) with a single output that may be center-tapped for dual-voltage levels. | ||
| Three Phase AC | Three-phase AC is a type of alternating current (AC) with three separate outputs from a single source, with a phase difference of 120 electrical degrees between any two adjacent voltages or currents. | ||
| DC | Direct current (DC) always flows in the same direction. | ||
| Other | Other unlisted or specialized signal types. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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Performance
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| THID | A signal's total harmonic current distortion (THID) is the ratio of the sum of the powers of all harmonic frequencies above the fundamental frequency to the power of the fundamental frequency. | ||
| Search Logic: | All matching products will have a value less than or equal to the specified value. | ||
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| Rated Power | Reactive power is the mathematical product of voltage and current consumed by reactive loads. Examples of reactive loads include capacitors and inductors. These loads, when connected to an AC voltage source, draw current. However, because this current is 90o out-of-phase with the applied voltage, reactive loads consume no real-power in the ideal sense. | ||
| Search Logic: | User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria. | ||
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| Standard Compliance | |||
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| IEEE 519 | IEEE 519 is a standard from the Institute of Electrical and Electronics Engineers (IEEE) that is designed to help utilities and end-users deal with the growing issue of harmonic voltages and currents. IEEE 519 imposes harmonic distortion limits on new electrical equipment that are added to a system. The IEEE 519 standards are applicable in the United States. | ||
| EN 61000 | EN 61000 is a European standard for electromagnetic compatibility (EMC) that includes harmonic distortion limits. | ||
| AS 2279 | AS 2279 is an Australian standard for harmonic distortion limits. | ||
| BS G5/3 | BS G5/3 is a British standard for harmonic distortion limits. | ||
| Other | Other unlisted or proprietary standards. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Nominal Input Voltage | |||
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| 110 V | The filter operates with a nominal voltage of 110 volts. | ||
| 208 V | The filter operates with a nominal voltage of 208 volts. | ||
| 240 V | The filter operates with a nominal voltage of 240 volts. | ||
| 380 V | The filter operates with a nominal voltage of 380 volts. | ||
| 480 V | The filter operates with a nominal voltage of 480 volts. | ||
| 600 V | The filter operates with a nominal voltage of 600 volts. | ||
| Other | Other unlisted operating voltages. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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| Frequency | |||
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| 50 Hz | The required operating frequency is 50 Hz. | ||
| 60 Hz | The required operating frequency is 60 Hz. | ||
| Other | Other unlisted operating frequency. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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Features
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| UL Listing Mark | The UL Mark indicates that Underwriters Laboratories Inc. (UL) has found that samples of the product meet that organization's safety requirements. These requirements are based primarily on UL's published Standards for Safety. | ||
| Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
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| Performance Monitors | Performance monitors are indicators or meters that display information about variables such as current THD, voltage THD, and power. | ||
| Search Logic: | "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice. | ||
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| Operating Temperature | This is the full required range of ambient operating temperature. | ||
| Search Logic: | User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria. | ||
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| Form Factor | |||
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| NEMA 1 Enclosure | Type 1 NEMA enclosures are designed for indoor use. They protect personnel against incidental contact with the enclosed equipment and protect the enclosed equipment from falling dirt. | ||
| NEMA 2 Enclosure | Type 2 NEMA enclosures are designed for indoor use. They protect personnel against incidental contact with the enclosed equipment and protect the enclosed equipment from falling dirt and the dripping and light splashing of liquids. | ||
| NEMA 3 Enclosure | Type 3 NEMA enclosures are designed for indoor or outdoor use. They protect personnel against incidental contact with the enclosed equipment and protect the enclosed equipment from falling dirt, rain, sleet, snow, and windblown dust. Type 3 NEMA enclosures are undamaged by the external formation of ice on enclosure. | ||
| NEMA 3R Enclosure | Type 3R NEMA enclosures are designed for indoor or outdoor use. They protect personnel against incidental contact with the enclosed equipment and protect the enclosed equipment from falling dirt, rain, sleet, and snow. These enclosures are undamaged by the external formation of ice. | ||
| NEMA 12 Enclosure | Type 12 NEMA enclosures have knockouts and are designed for indoor use. They protect personnel against incidental contact with the enclosed equipment and protect the enclosed equipment from falling dirt; circulating dust, lint, fibers, and flyings; and the dripping and light splashing of liquids. | ||
| Rack Mounted | Devices mount in racks and come with hardware such as rail guides, flanges, or tabs. Some rack-mounted devices fit in a standard 19” telecommunications rack. | ||
| Panel Mounted | Devices fit a depression within a panel so that they are flush or nearly flush with the panel. | ||
| Other | Other unlisted or proprietary form factors. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
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