Relay priority of load RPN-1 (control of current relay), works without power supply

RPN-1-25
по запросу

RPN-1-40
по запросу

RPN-1-100
по запросу

 
  • Redistribution of power in electrical systems with a limited maximum power
  • Possibility of using as overcurrent relay
  • Current measurement by the built-in current transformer
  • Powered by a controlled current - does not require an auxiliary power
  • Adjusting the actuation current of 10 to 100% of maximum current
  • Adjustable delay of actuation till 0,2-20s
 
PURPOSE OF THE RELAY
 Priority relay RPN-1 is designed for redistribution of power consumption in electrical systems with a limited maximum power. At excess consumed current the priority relay disconnects non-priority load. Sometimes it is necessary to limit the maximum current that is allowed to use a separate electrical system from the general electrical network or for economic reasons or because of the small cross section of the lead wires, either due to power limitations electricity supplier. Priority relays are used in order to prevent disconnection of the main circuit breaker on the input. A similar situation arises when new loads are connected without changing the electrical circuit (section of wires, circuit breakers, etc.). In this case the priority relay set in chain wich will be deactivated when exceeding maximum permissible power. Relay priority will determine when the total current of the electrical system will return to the set limits and will turn on again on non-priority loads.
 The relay can increase the number of loads without changing allocated power to reduce power consumption and to prevent the inconvenience of input the circuit breaker disconnection.
 It is also possible to use relay priority for use of relay protection and emergency automation schemes as the maximum current relay to protect electrical machines, transformers and another equipment when there are short circuits and overloads.
 
DESIGN OF THE RELAY
 Relay is produced in a plastic case with a unified front connection wires power and switched circuits. Mounting is carried out on a DIN rail  width 35mm (GOST R IEC 60715-2003) or on a smooth surface. To set on a smooth surface, spring locks must be changed in recent holes, fixing a spring lock, which are located on the back side of the case. Terminal design provides robust clamp wires up to 2,5mm2. On the front panel there are: control of threshold of actuation of the maximum current of 10-100%, control of time actuation relay "t", blue LED of availability current "I",  red LED of overcurrent ">I".
 
OPERATION OF THE RELAY
 The relay does not require auxiliary power. Wire load power is introduced into the hole of the case. If the measured current value exceeds the threshold value, the executive relay will turn on after the counting setting by potentiometer «t» of time delay. When returning the current values in initial state of the relay is switched off immediately. If, during this current counting value returns to threshold of set values, the operation will be continued without switching the executive relay. Threshold of actuation sets by the upper potentiometer in the range of 10 ... 100% of the maximum current value. When executive relay is closed, contacts11-12 is turn off, when turned on - closed contacts 11-14.
 
 WARNING:  Position of contacts for supply can be arbitrary, at the first operation an initial (off) state of the contact is restored.
 Do not set relay in an area of high vibration, or near devices which cause vibrations when activated (example, powerful actuators, etc).
 
SPECIFICATION OF THE RELAY RPN-1
A parameter Unit RPN-1-25 RPN-1-40 RPN-1-100
Supply
 
from controlled current
Frequency controlled current
Hz
50
Range of controlled current (different versions)
A
2,5-25
4-40
10-100
Threshold of actuation of the maximum current value
%
10-100
Deviation of measurement current  (at 250C)
%
10
Deviation at changing of tempereture
%/0C
-0,1...0,3
Deviation of installation of actuation
%
15
Hysteresis
%
10
Delay of actuation relay,  t
s
0,2-20
Maximum continuous input current
A
250
Rated/maximum switching voltage
V
250/400
Maximum switching current: AC250V 50Hz (AC1)/DC30V (DC1)
A
16
Maximum switching current (<4s at  pulse ratio 10)
A
30
Maximum switching power: АС250V 50Hz (АС1)/DC30V (DC1)
VA/W
4000/480
Electrical strength (supply - contacts)
V
АС2000 (50Hz - 1min)
Mechanical endurance, not less
cycles
10х106
Electrical endurance, not less
cycles
100000
Quantity and type of contacts
 
1 switching
The degree's protection at case/terminals according to by GOST 14254-96
 
IP40/IP20
Operating temperature range
0С
-25....+55
Storage temperature
0С
-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 A1-A2)
Climatic modification and placement category by GOST 15150-69 (non-condensing)
  UHL4
The degree of pollution in accordance with GOST 9920-89
  2
Relative humidity of air
%
up to 80 (at 250С)
Operating position in space
 
artbitrary
Mode
 
round the clock
Dimensions
mm
18х93х62
Weight
kg
0,095
0,07
0,07
 
DIAGRAMS OF OPERATING THE RELAY
Диаграмма работы РПН-1
 
CIRCUITS CONNECTION
Схема подключения РПН-1 (1)
Enabling relay RPN-1 for controlling non-priority load
Enabling 2-relay RPN-1 to control two non-priority loads
Схема подключения РПН-1 (2)
Схема подключения РПН-1 (3)
   
DIMENSIONS OF THE RELAY
Габаритные размеры реле в корпусе 18*93*62мм
 
Title
Order code
File to download
(manual)
File date
RPN-1-25
4640016934195
v09.11.2015
RPN-1-40
4640016934201
RPN-1-100
4640016934188
RPN-2
temporarily suspended
29.07.2014
 
     RPN-2 : Two modes, mode with continuous control of the current of priority load and mode with the restarting of non-priority load after 5 minutes
English
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