5
Basic product data
Automatic transfer switch AVR type of KARAT series of IEK trademark
(hereinafter referred to as – AVR), is designed for automatic switching to backup
power supply of three-phase AC circuits with voltage up to 400 V and 50 Hz.
Operation conditions:
– operating temperature range of ambient air
–
from minus 5
°
Ñ
to plus 40
°
Ñ
;
– base altitude – maximum 2000 m;
– working position in space – on a vertical plane (figure 6), rotation ±90
°
is
allowed;
– relative humidity – 50 % at the temperature 40
°
C, it is allowed to use AVR
at relative humidity of 90 % and temperature of 20
°
C;
– non-explosive environment, not containing aggressive gases and vapors in
concentrations that destroy metals and insulation, not saturated with conductive
dust and water vapor.
Technical data
Main technical data of AVR are listed in table 1.
Main technical data of integral circuit breakers are listed in table 2.
In automatic mode, the AVR is switched from the primary input to the reserve
one and vice versa should be carried out using the controller, depending on the
voltage parameters of the power circuit
Controller parameters are listed in table 3.
The purpose of the control panel elements for AVR-1 STANDARD is shown
in Figure 1, for AVR-2 LITE – in figure 2.
Location of the controller outputs for AVR-1 STANDARD is shown in figure 3,
for AVR-2 LITE – in figure 4.
Time-current characteristics of integral circuit breakers are shown in figure 5.
The switch handle in MANU mode allows switching from the primary input
to the reserve one. To turn on the primary input power, turn the handle
counterclockwise until it stops, to switch to the reserve input power, turn the
handle clockwise until it stops. In the middle position (handle is vertical – as
shown in figures 1 and 2) – both power circuits are disconnected.
AUTOMATIC TRANSFER SWITCH AVR TYPE
K
ARAT
EN
