Table 9-17: Phase Mapping; Table 9-18: Iec 61000-3-34 Table C.2 - California Instruments MX30-1 User Manual

Mx series ac and dc power source series i / series ii

Table of Contents

User Manual - Rev AJ

MX units with revisions prior to this will change the L-N amplitude by the set dip level but retain

the nor

mally programmed phase angle relationship. For firmware upgrades, contact

support@calinst.com.

Note that required phase angles and amplitudes are automatically set for dips of 0, 40, 70, 80

and 100% to conform with method (A). For all other dip levels, method (A) can be used by

programming the required phase angles to be used during the programmed dips. The amplitude

and phase angles required to obtain the correct line-to-line voltage dip per method (A) for

tandard dip le

vels

IEC 61000-4-34.

ince all phas

e pro

phase angle for A other than 0° are implemented by offsetting all three phases by the required

number of degrees to get phase A at 0°. This is reflected in the actual output settings shown on

the MX versus the data in table C.2 of the IEC61000-4-34. The actual output settings are shown

in the last 3 columns.

Phase Mapping

The phase rotation on the MX series is ACB. This means phase A is mapped to L1, phase B is

mapped to L3 and phase C is mapped to L2. The required phase selection letter combination

for the required Line-to-line dip is shown in table C.2 for reference.

To select the desired phase-to-phase dip, select the phase selection as shown in column 8 and

either 80, 70 or 40 % dip level from the IEC411 screen or the Gui. Table C.2

Line to Line

L1-L2

L2-L3

100 %

100% dip

150°

(no dip)

80%

80% dip

150°

L1-L2

92%

80% dip

161°

L2-L3

100%

80% dip

150°

L1-L3

70%

70% dip

150°

L1-L2

89%

70% dip

167°

L2-L3

100%

70% dip

150°

L1-L3

40%

40% dip

150°

L1-L2

87%

40% dip

187°

L2-L3

100%

40% dip

150°

L1-L3

206

of 40, 70 and 80% are embedded in the firmware and conform to table C.2 of

gramming on the MX series is referenced to phase A, voltage dip with a

IEC Tables