Schneider Electric 58 TRX Line Reactors and Output Filters

Altivar® 58 TRX AC Drives

Line Reactors and Output Filters

Wiring systems with a neutral connected directly to ground can be cla ss ifi ed in t w o w ays, as TT or TN.

1. TT indicates a neutral wire connected directly to ground. The exposed conductive parts of the

product are connected to ground via a separate path.

2. TN indicates a neutral wire connected directly to ground and the exposed conductive parts of the

product are connected to ground via the same path.

Wiring systems grounded through a high impedance or systems with an isolated (floating) neutral can

be referred to as IT. Standard IEC 1800-3, appendix D2.1, states that filters must not be used with IT

mains supplies because they prevent the ground leakage detectors from working reliably. In addition,

the effectiveness of the filters on IT mains suppl ies d epend s on the ty pe of impe dance be tween neutr al

and earth, and is therefore not recommended.

In the case of a machine which must be installed on an IT supply, the solution is to insert an isolation

transformer and operate the machine locally using a TN or TT supply.

Refer to page 125 for dimensions and to page 132 for selection.

Line reactors can improve protection against line overvoltage surges and reduce input currents to the

drive controller by adding impedance. The additional impedance also reduces the harmonic current

distortion produced by a typical 6-pulse diode rectifier used to convert AC to DC in most drive

controllers. Additional impedance is recommended when the impedance of the power distribution

system is low, such as when the power rating of the system transformer is ten times larger than the

power rating of the drive controller. Single-phase line re actors are a v ailab le f or single -phase inp ut rated

ATV58 TRX Type H drive controllers. See pages 125, 132, and 133 for dimensions and selection.

The motor protecting output filters combine inductance, capacit ance, and resistan ce to f orm a lo w pass

filter. They should be considered for use in applications where the wiring to the mot or(s ) is longer than

100 ft. (30.5 m). These filters lower the dv/dt leve ls to pre v ent e xcit ing the n atural re sonant fre quency o f

the output circuit (drive controller, motor cables, and motor). Motors compliant to NEMA MG1, Part 31

guidelines generally do not require the use of motor protecti ng filter s. See page 13 3 f or dime nsions and

selection.

Characteristics

Conformity to standards EN 133200

Degree of protection IP 21 and IP 41 on upper part

Maximum relative

humidity 93% with no condensation or dripping water, conforming to IEC 68-2-3

Ambient air temperature Operation –10 to 60 °C (14 to 140 °F)

Storage –25 to 70 °C (–13 to 158 °F)

Operating altitude Up to 1000 m (3280 feet) No derating required

Above 1000 m (3280 feet) Derate the current by 1% for each additional 100 m (328 feet)

Maximum nominal voltage 50/60 Hz single-phase 240 Vac +10%

50/60 Hz 3-phase 500 Vac +10%