2
Caution:
Read this Installation manual carefully.
The
VR758 voltage regulator is not compatible with
options available for the UVR professional series
regulators.
The VR758 is a specifically designed, single
purpose regulator and attempts to interface with UVR500
options will result in extensive damage to the regulator
and generator as well as possible personal injury.
The VR758 voltage regulator is specifically designed so that it
can be used in applications, which require either VPH, or Flat
Response regulation.
Before installation, you will need to know which mode that your application will require. The
charts below will illustrate how each mode operates.
Volts per Hertz
It is desirable to use the VPH mode in some
types of the applications listed below:
v
Generator is idled before and after use.
v
Prime mover Hp is not enough for
starting large KW loads.
v
Untrained or non-professional
operators.
v
Misused equipment
Flat Response
Flat response is generally used in the following
applications:
v
Professional or well trained generator
operators.
v
Critical applications such as Hospitals,
UPS systems and computer equipment.
v
Hard starting applications when the
prime mover HP is large enough for
large KW loads.
Generator Voltage
100%
50%
0%
Prime Mover 50% 100%
Speed
Generator Voltage
100%
50%
0%
Prime Mover 50% 100%
Speed
