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HGL IOM Manual - Rev. B
HarmonicGuard
®
Low Capacitance
Standard Option (S)
Standard Option (S)
The Standard Option includes high quality harmonic-grade capacitors and line reactors. This filter will
meet the majority of application requirements found today. This cost effective product is available as an
open panel version, in a UL Type 1, UL Type 12, or in an UL Type 3R 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. The UL Type 3R enclosure protects the filter from
harsh conditions.
Product Description
HGL S Option Filter
The HGL is a drive-applied harmonic filter designed and developed by TCI to reduce the harmonic
currents drawn from the power source by VFDs. The published HGL voltage, Power (Hp or kW) and
current ratings apply to matching power (Hp or kW) rated standard VFDs with six-pulse diode bridge
rectifiers. The HGL may also be sized to filter other loads, such as SCR six-step drives, SCR Direct
Current (DC) motor drives, thyristor furnaces, battery chargers, electroplating supplies or other types of
non linear loads. In many cases, the filter power rating (Hp or kW) will differ from load power rating
(Hp or kW). Please contact TCI Technical Support for additional information and support on sizing HGL
harmonic filters for your non six-pulse diode front end VFD applications.
The HGL harmonic filter is a passive filter connected in series with the input terminals of a VFD or
several VFDs that operate as a group. It is designed to provide a low impedance path for the major
harmonic currents demanded by the VFD. The filter is a stand-alone device that can be furnished in its
own enclosure and mounted adjacent to the VFD. It is also available on an open panel for mounting
within an enclosure with the VFD or other equipment.
The HGL Standard Option consists of the following standard features and components:
•
A KDR tuned series reactor.
•
A TCI 3-phase tuning reactor specifically designed for the HGL filter.
•
High-endurance, harmonic-rated capacitors.
•
Bleeder resistors to ensure safe capacitor discharge upon filter shutdown,
located on capacitors.
•
Cooling fans (on select models) to ensure adequate cooling and safe operating
temperatures.
•
Control Power transformer on enclosed units requiring auxiliary cooling fans.
•
Compression terminals for ease and integrity of all power and control wiring.
•
Fuses
Summary of Contents for HarmonicGuard Series
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