A series module of automatic input of a reserve MAVR-3 are designed to operate in four-wire nets 230/400V with insulated zeroes

Модуль аварийного ввода резерва МАВР-3-11
MAVR-3-11 UHL4
15000.00 руб. с НДС

 
  • The internal formation of the auxiliary power supply voltage
  • Setting of threshold Umin and Umax separately for Input 1 and Input 2
  • Control of availability, alternation, break of phase for Input 1 and Input 2
  • Setting time of turning on and turning off
  • Load capacity of control contacts - 16A/AC250V
  • Alarm relay
  • The ability of remote locking of buttons of front panel
  • Galvanic isolation of inputs
 
 APPLICATION OF MODULE AUTOMATIC INPUT OF RESERVE MAVR-3-11
 The module automatic input reserve MAVR-3-1 (the module) is a control device is designed to automatically switch to reserve line at disconnected or a fault of operating line. The device is designed for operation in the cupboards (units) of control the automatic enabling a reserve power in systems uninterruptible power supply 3-phase electrical receivers of I and II category of connection according to the SAE requirements.
 
PURPOSE OF MODULE
 The module is designed to control automatic switching from one source of supplying to the other and back to automatic mode when the voltage of unacceptable deviations or alarm at the working input (reduction/exceeding the set threshold of voltage, changes of alternation of phases, breakages of one or more phases). Technical characteristics of the module are shown in Table below. Circuits connection are shown in figures below.
 
DESIGN OF MODULE
 The module is designed for shield mounting. Case material - plastic ABC. Mounting is carried into the insertion hole dimensions 136*136mm. To fixing is used two brackets, supplied. Dimensions of the module shown in Figure below. Order of installation brackets is shown in Figure below.
 At the front panel there are mnemonic circuit, LED phase voltages "L1", "L2", "L3", indicators exceeded threshold values "<U" and ">U", indicator of ready input "READY", indicators of state switching mechanisms "OFF", "REMOTE", indicator "ALARM", indicator of automatic mode "AUTO", buttons of control switching mechanisms "INPUT1" and "INPUT2", reset button "STOP", button of turning on automatic mode "AUTO".
 On the switching panel there are fuses of circuits of auxiliary power supply of each input, jacks of connection input 1 and input 2, jacks of connection switching mechanisms input 1 and input 2, jack of connection auxiliary power supply "Uauxiliary", jack "ALARM" for connection external alarm signaling, jack "INPUTS" for connection external signaling devices, switches for setting threshold values of voltages "Umax", "Umin" for input 1 and for input 2, switches of setting delays "Timeon", "Timeoff", unit of microswitches of setting operation modes "Modes".
 
PRINCIPLE OF OPERATION MODULE
 The module is a ready-to-use device consisting of three independent electronic units: two units of control parameters of three-phase four-wire net (voltage control) and microprocessor unit.
 The unit of voltage control of each input has LED indication of input state. Power is carried out from phase "L1" and neutral "N". Units are galvanic isolated each other and with microprocaessor unit.
 The microprocessor unit analyzes the readiness of main and reserve inputs, set points of switches units modes, duration state of discreate inputs, after that is carried out an issuance control signals to built-in control relay and indicators on the front panel. A control of switching mechanismsis carried out via "dry" contacts built-in relay. Power of microprocessor unit is provided by phases L1 of first and second inputs. Auxiliary supply is generated from phase L1 of first input or phase L1 of second input. In the absence of two phases, a microprocessor unit is unable to perforn its function.
 
PURPOSE OF CONTROL PARTS, INDICATION AND CONNECTION
Front panel of Module
Передняя панель Модуля МАВР-3-11
 
Back panel of Module
Задняя панель Модуля
 
CONTROL MODES
Manual:
 Manual input is used for direct connection of selected input via buttons on front panel "Input1" or "Input2".
 In case, if is supplied a command to enable one input, when enabling other input, firstly will disabling input, then will be given a command to start the selected input. For example, its necessary to enable a second input at enabled first input. After 3 seconds after pressing button "Input2", MAVR will change a state. Disconnects the first input, then the load is connected to second input.
 To switch to automatic mode of control its necessary press and hold a button "Auto".  LED "Auto" is off.
 
Auto mode:
 In this mode MAVR automatically controls the switching devices. Switching to mode of manual control is provided by pressing a button "Input1" or "Input2". LED "Auto" is on.
 
Reset mode:
 At pressing button "Stop" is carried out a disabling of active input, reset alarms at state and short circuit  (if it possible). MAVR goes into standby mode, flashing LED "Auto". In this mode MAVR performs only fuctions of state indication. All relay outputs are switched off.

 

SPECIFICATION OF MAVR-3-11
A parameter
Unit
MAVR-3-11
Type of controlled lines ( 3-phase, 4-wires)
 
L1, L2, L3, N
Quantity of controlled inputs
 
2
Supply voltage input1, input2
V
180-400
Frequency of net
Hz
47-60
Maximum switching voltage/at current
V/A
AC400/5*
Maximum current of load, AC1 /at voltage
A/V
16/AC250*
Thresholds of turning off Input 1, Input 2 at Umax
V
243, 249, 255, 261, 267, 273, 279, 285, 291, 297
Thresholds of turning off Input 1, Input 2 at Umin
V
163, 169, 175, 181, 187, 193, 199, 205, 211, 217
Delay of turning off
s
0,1, 0,5, 1, 2, 3, 5, 10, 20, 30, 60
Delay of turning on
 
0,1s, 1s, 3s, 15s, 30s, 1min, 2min, 3min, 6min
Control of break phase
 
there is
Control of alternation phases
 
there is
Control of "stiking" phases
 
there is
Switching endurance
 
>106
Electrical endurance, not less
 
>104
Operating temperature range
0C
-20...+55
Storage temperature
0C
-40...-70
Immunity to interference from bursts in accordance with GOST R 51317.4.4-99 (IEC/EN 61000-4-4)
 
level 3 (2kV/5kHz)
Immunity to interference over voltage in accordance with GOST R 51317.4.5-99 (IEC/EN 61000-4-5)
 
level 3 (2kV L1-L2)
Climatic modification and placement category by GOST 15150-69 (non-condensing)
 
UHL4
The degree's protection at case/terminals according to by GOST 14254-96
 
IP54/IP20
The degree of pollution in accordance with GOST 9920-89
 
2
Relative humidity of air
%
up to 80 (at 250C)
Height above sea level
m
till 2000
Operating position in space
 
artbitrary
Mode
 
round the clock
Dimensions
m
0,142/0,142/0,094
Weight
kg
0,74
* - Necessarily using protection chains against switching emissions
 
DIAGRAMS OF OPERATING
without priority
priority of input 1
priority of input 2
Диаграмма работы МАВР-3-11 (без приоритета)
Диаграмма работы МАВР 3-11 с приоритетом ввода 1
Диаграмма работы МАВР 3-11 с приоритетом ввода 2
 
CIRCUIT CONNECTION
Схема подключения МАВР-3-11 (подключение нагрузки автоматическими выключателями с моторными приводами)
A load connection via automatic breakers with motor drives
 
Схема подключения МАВР-3-11 (подключение нагрузки магнитными пускателями)
A load connection via magnetic starters
 
DIMENSIONS OF MODULE
Габариты МАВР-3-11
 
Title
Order code
File to download
(manual)
File date
MAVR-3-11 UHL4
4640016938391
02.05.2016

 

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