Siemens 21-115532-001 ユーザーズマニュアル

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SPECIAL FEATURES 
Page 13 
POLARIZED DISCONNECT SWITCH       
VARI-AMP
TM
 POSITION INDICATOR   
(JACK PLUG) AND HINGED 
CONTROL PANEL 
The Accu/Stat
TM
 control panel is hinged and may be re-
moved completely from the regulator control box by 
removing the wing nuts on the polarized jack plug and 
pulling the jack from its fixed position. This will 
automatically de-energize the control. It is not necessary 
to bypass or de-energize the regulator to remove the 
control. 
A spring-loaded shorting bar in the plug automatically 
short circuits the current transformer secondary when 
the jack is removed. 
 
REMOTE MOUNTING 
OF CONTROL 
EQUIPMENT 
The Accu/Stat
TM
 control may be remotely mounted. 
Remote cable is available in standard lengths of 18, 25 
and 30 feet incorporating oil and moisture resistant, 
color-coded conductors. 
The Vari-Amp
T M
 
feature provides a method of operating the 
regulator at increased load by decreasing the range of op-
eration. It provides operator flexibility by allowing the range of 
regulation to be adjusted in 1¼ percent increments. The 
various regulation ranges together with the corresponding 
current capacities for standard regulators are listed on the 
next page. All that is necessary to adjust the range of 
regulation anywhere from ±5 percent to ±10 percent is to 
turn the adjusting knobs until the proper range of regulation 
is shown on the side of the position indicator. The upper and 
lower limits need not be the same. 
It is not necessary to remove the regulator from service to 
make this adjustment. The switches are, however, in the 
motor power circuit so the motor should not be running while 
the switches are being set.