Atec 6338-5-PJ-50-N User Manual

LINE IMPEDANCE STABILIZATION NETWORKS

APPLICATION

When measuring conducted radio interference voltages from active power lines to ground, it is essential to know the line impedance so that repeatable tests can be made by more than one laboratory.Artiﬁcial line impedances are speciﬁed in MIL-STD-462, V.D.E., C.I.S.P.R., C22.4, NACSEM 5100, ANSI C63.2 and other EMI speciﬁcations.

The characteristic impedance of the five microhenry and 50 microhenry LISNs brackets the mean value of power line impedance which has been measured by independent researchers. These two inductance values in parallel with the 50 ohms of the EMI meter fall between the minimum and maximum line impedance values which have been measured. The mean value would be represented by a twenty microhenry inductor in parallel with100 ohms.

DESCRIPTION

The Solar Electronics LISNs use a series inductor between the test sample and the power source to provide the impedance-versus-frequency

characteristic. A coaxial connector with d.c. isolation is provided for connection to the associated frequency selective EMI meter. The power source end of the inductor is bypassed to ground.

Due to the large current-carrying capability of some LISNs, it is not always practical to use a switch for changing inductance values. Instead, some models are equipped with a high current pin plug-and-jack combination for quickly connecting and disconnecting a network and substituting another.This nylon insulated pin plug and jack arrangement is a safety feature, well isolated from inadvertent short circuits, providing protection to operating personnel.

Current ratings up to 200 amperes are available in 50 H styles and 500 amperes in 5 H styles. See the chart on the following page.

When measurements are made in a shielded room, the LISNs intended for F.C.C. applications will also serve for V.D.E. tests.When operating on an unfiltered power line, the V.D.E. specifications require a filter consisting of 250 microhenry inductor and a capacitor.This ﬁlter is included in the 24 ampere LISN, Type 9348-50-R-24-BNC, and the 50 ampere LISN, Type 8602-50-TS-50-N.

EMI specifications require one LISN in each ungrounded power lead.Even though the neutral is considered “ground,” if it is not connected to

chassis inside the unit under test, the lead must be tested with an LISN. Therefore, use two LISNs in d.c.or single phase a.c. applications, three LISNs for delta-connected three phase circuits,and four LISNs for ‘Y’ connected three phase circuits.

Explanation of Type Numbers

8602-50-TS-50-N

R.F. connector style

Current rating,amperes

Terminals: TS = T

erminal Screw

PJ = P

lug and Jack

Series inductance, microhenries

Basic model number

LINE IMPEDANCE STABILIZATION NETWORKS

Current Inductance Line/Ground Voltage Case

Type Number Amps H 50-60 Hz 400 Hz Size* Circuit Frequency Range

6330-100-PJ-50-N 50 100 270 130 #3 Single 10 KHz- 4 MHz 6330-100-TS-50-N 50 100 270 130 #3 Single 10 KHz- 4 MHz 6330-250-PJ-50-N 50 250 270 130 #3 Single 8 KHz- 4 MHz 6330-250-TS-50-N 50 250 270 130 #3 Single 8 KHz- 4 MHz 6330-600-PJ-50-N 50 600 270 130 #3 Single 7.5 KHz- 5 MHz 6330-600-TS-50-N 50 600 270 130 #3 Single 7.5 KHz- 5 MHz

6338-5-PJ-50-N 50 5 270 130 #1 Single 150 KHz- 65 MHz 6338-5-TS-50-N 50 5 270 130 #1 Single 150 KHz- 65 MHz 6338-57-PJ-50-N 50 57 270 130 #2 Single 14 KHz- 4 MHz 6338-57-TS-50-N 50 57 270 130 #2 Single 14 KHz- 4 MHz 6516-5-TS-10-BNC 10 5 270 130 #5 Single 150 KHz- 65 MHz 6516-57-TS-10-BNC 10 57 270 130 #6 Single 14 KHz- 4 MHz

7225-1 10 650 270 130 #1 Single 10 KHz-400 MHz (useable up to 1 GHz) 7333-5-PJ-50-N 50 5 500 240 #1 Single 150 KHz- 65 MHz 7333-5-TS-50-N 50 5 500 240 #1 Single 150 KHz- 65 MHz 7333-57-PJ-50-N 50 57 500 240 #2 Single 14 KHz- 4 MHz 7333-57-TS-50-N 50 57 500 240 #2 Single 14 KHz- 4 MHz 8012-50-R-24-BNC 24 50 135 N/A #1 Dual 10 KHz- 50 MHz 8028-50-TS-24-BNC 24 50 270 130 #1 Single 10 KHz- 50 MHz

8116-50-PJ-100-N 100 50 270 130 #3‡ Single 10 KHz- 30 MHz 8116-50-TS-100-N 100 50 270 130 #3‡ Single 10 KHz- 50 MHz 8116-100-PJ-100-N 100 100 270 130 #3‡ Single 10 KHz- 4 MHz 8116-100-TS-100-N 100 100 270 130 #3‡ Single 10 KHz- 4 MHz 8116-250-PJ-100-N 100 250 270 130 #3‡ Single 8 KHz- 4 MHz 8116-250-TS-100-N 100 250 270 130 #3‡ Single 8 KHz- 4 MHz 8309-5-PJ-100-N 100 5 500 240 #3 Single 150 KHz- 65 MHz 8309-5-TS-100-N 100 5 500 240 #3 Single 150 KHz- 65 MHz 8328-50-PJ-50-N 50 50 270 130 #3 Single 10 KHz- 50 MHz, 0.1f coupling capacitor 8328-50-TS-50-N 50 50 270 130 #3 Single 10 KHz- 50 MHz, 0.1f coupling capacitor

*Case Sizes (w x h x l) #3: 10.06" x 9.0" x 13.12" (25.72 cm x 22.86 cm x 33.34 cm)

Add 3" (7.62 cm) for Base Plate #4: 7.53" x 7.63" x 18.97" (19 cm x 19.43 cm x 48.26 cm)

‡ With 50 or 60 Hz Ventilating Fan; add 7.09" (18.00 cm) #5: 3.12" x 1.75" x 3.87" (7.94 cm x 4.44 cm x 9.84 cm) #1: 4.5" x 4.5" x 9.25" (11.43 cm x 11.43 cm x 23.5 cm) #6: 2.75" x 2.45" x 5.7" (6.98 cm x 6.22 cm x 14.48 cm) #2: 7.0" x 7.0" x 8.25" (17.78 cm x 11.78 cm x 24.13 cm) #7: 13.06" x 7.0" x 10.06" (33.20 cm x 17.78 cm x 25.55 cm)

+ 2 hidden pages