20
HGL IOM Manual - Rev. B
HarmonicGuard
®
Low Capacitance
Standard Option (S)
Fuse Monitor without Contactor Option (G)
The Fuse Monitor without Contactor Option includes a voltage monitor module and relay that can be
connected to a VFD or other device. The fuse monitor will indicate a fuse failure and communicate this
condition through the relay to a connected device.
Product Description
HGL G 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
nonlinear 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 G 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
•
Voltage monitor module to report status of fuses to control
Summary of Contents for HarmonicGuard Series
Page 6: ......
