Operating instructions

Thyro-A 2A

load with joint neutral point without N

e.g.

parallel

load

resistances

Number

load nom.

type contr.

Resistance

increase

in case of fault

(L2)

Recommended

setting

for poti

R205

X2.9 [V]

X2.9

[0-20mA]

ca.

Revo-

lutions

1 100% 90.0% 9.0 18.0 14.0

1 80% 72.0% 7.2 14.4 11.5

1 60% (54%) 5.4 10.8 9.0

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Tab. 2d Load monitoring

For Thyro-A 2A (load with joint neutral point without N conductor) the setting for

load monitoring can be made according to the table below:

Resistance

increase 20%

Load break

Resistance

increase 20%

Value deviations can be converted by percentage. The set monitoring value must

lie “in the middle” between the nominal load current value and the value after

outage.

NOTE

Settings above 90% and below 10% are not practical. If low load cur-

rents are required, check if a controller with a lower type current can

be used.

In the VAR operating mode monitoring with large trigger delay angles

 140°el. is locked.