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NOVATEK-ELECTRO
ОМ-163
This Operation Manual is intended to familiarize you with the design, the requirements for safety,
operation and maintenance procedures of the power limiting relay
ОМ-163 (hereinafter referred to as the
"device",
ОМ-163).
The device meets the requirements of the following:
IEC 60947-1, Low-voltage switchgear and controlgear; Part 1; General rules;
IEC 60947-6-2, Low-voltage switchgear and controlgear; Part 6-2; Multiple function equipment; Control and
protective switching devices;
CISPR 11, Electromagnetic compatibility; Industrial, scientific and medical RF equipment; Electromagnetic
interference characteristics; Limits and methods of measurements;
IEC 61000-4-2, Electromagnetic compatibility; Part 4-2;
Testing and measurement techniques
;
Electrostatic
discharge immunity test
.
Harmful substances in amounts exceeding maximum permissible concentrations are not available
.
Terms and abbreviations:
−
controlled parameter
is the parameter selected by the user (total power, active power, reactive
power, load current, mains voltage), in case of exceeding of which the device open contacts 1 - 3 (Fig. 1);
−
AR
is automatic reclosing delay time which is counted after opening contacts 1 - 3 (Fig. 1);
−
display
- three-digit seven-segment indicator;
−
ACB
is automatic circuit breaker.
1. SERVICE
1.1. Device service
ОМ-163 is designed to protect (disconnect) the equipment connected to it in the following cases:
−
exceeding the threshold value of the controlled parameter;
−
deviation of the mains voltage from the set values;
−
excess of the temperature of the contact group
(85
°С).
The ranges of measured and controlled parameters are given in Table 1.
Table 1
– The ranges of measured and controlled parameters
Description
Controlled range
Measured range
Total power, kVA
1
– 14
0
– 14
Active power, kW
1
– 14
0
– 14
Reactive power, kVAr
1
– 14
0
– 14
Load current, A
1
– 63
0.5
– 63
Input voltage, V
160
– 280
120
– 350
ОМ-163 opens contacts 1 - 3, if the controlled parameter exceeds the limits set by the user.
The user sets the maximum power, off-delay time and AR time using the buttons (it. 2, 3, 4, Fig. 1).
ОМ-163
can be used as:
−
power consumption limiting relay;
−
voltage relay;
−
digital multi-meter (indication of total, active, reactive power, current consumption and mains voltage).
ОМ-163 is powered by the circuit that feeds the load.
ОМ-163 displays the value of the parameters and the status of the relay using indicators.
1.2.
Controls and overall dimensions of
ОМ-163
Controls and overall dimensions are shown in Fig. 1.
1.3. Operation conditions
The device is intended for operation in the following conditions:
–
Ambient temperature: from minus 35 to +55
°С;
–
Atmospheric pressure: from 84 to 106.7 kPa;
–
Relative humidity (at temperature of +25
°С): 30 … 80 %.
If the temperature of the device after transportation or storage differs from the ambient temperature at
which it is supposed to be operated, then before connecting to the mains keep the device under the operating
conditions within two hours (because of condensation may be on the device elements).
ATTENTION! The device is not intended for operation in the following conditions:
–
Significant vibration and shocks;
