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Устройства мониторинга электроэнергии Omron KM50

Omron KM50

Яркий дисплей, монтируемый на панель

KM50 может измерять вырабатываемую и потребляемую энергию, ток и напряжение, а также реактивную мощность, реактивную мощность сдвига фаз, коэффициент мощности и частоту.

  • Выполняет анализ энергосбережения с помощью встроенной функции классификации энергии.
  • Высокоточные измерения даже для токов ниже 5% от номинального значения с помощью автоматического переключения диапазонов.
  • Возможность измерять и различать потребленную и вырабатываемую электроэнергию.
  • Измерения реактивной мощности и коэффициента мощности.
  • Встроенное измерение импульсов и прямое преобразование для измерения КПД управления энергопотреблением (шт. / кВтч).
  • Отсутствие необходимости использовать трансформатор напряжения, непосредственное определение напряжения / трансформатор тока с возможностью открывания
  • Цветной дисплей
  • Система передачи данных Modbus
  • Встроенная регистрация данных

Заказная информация

KM50-E Smart power monitor

Applicable circuits Power supply voltage (shared) Dimensions Communications Protocol Order code
Single-phase, two wire: 100 to 480 VAC
Single-phase, three wire: 100/200 VAC
Three-phase, three wire: 100 to 480 VAC
Three-phase, four wire: 85 to 277 VAC
100 to 240 VAC 96 x 48 x 93 (H x W x D) RS-485 CompoWay/F: 31 nodes,
Modbus: 99 nodes
(Both are supported by the same model.)
KM50-E1-FLK

CTs

Rated primary current Rated secondary current Installation Order code
5 A Special output Installed separately KM20-CTF-5A
50 A KM20-CTF-50A
100 A KM20-CTF-100A
200 A KM20-CTF-200A
400 A KM20-CTF-400A
600 A KM20-CTF-600A

CT Cable

Cable length Order code
3 m KM20-CTF-CB3

Характеристики

Ratings

Item KM50-E
Applicable circuit Single-phase two wire, single-phase three wire, three-phase three wire and three-phase four wire power
Rated power supply voltage 100 to 240 VAC, 50/60 Hz
Allowable supply voltage range 85% to 110% of rated power supply voltage
Allowable frequency range 45 to 65 Hz
Power consumption 7 VA max.
Rated input Rated input voltage 100 to 480 VAC (single-phase, 2-wire): Line voltage
100/200 VAC (single-phase, 3-wire): Phase voltage/line voltage
100 to 480 VAC (3-phase, 3-wire): Line voltage
58 to 277 VAC (3-phase, 4-wire): Phase voltage
Rated input current 5 A, 50 A, 100 A, 200 A, 400 A, or 600 A (primary current of Special CT)
Rated frequency 50/60 Hz
Rated input power With 5-A CT: 4 kW
With 100-A CT: 80 kW
With 400-A CT: 320 kW
With 50-A CT: 40 kW
With 200-A CT: 160 kW
With 600-A CT: 480 kW
Allowable input voltage 110% of rated input voltage (continuous)
Allowable input current 120% of rated input current (continuous)
Ambient operating temperature −10 to 55°C (with no condensation or icing)
Storage temperature −25 to 65°C (with no condensation or icing)
Ambient and storage operation humidity 25% to 85%
Installation environment Overvoltage category and measurement category: 2, Pollution level: 2

Performance

Smart power monitor

Item KM50-E
Accuracy Voltage ±1.0% FS ±1 digit (at ambient temperature of 23°C, rated input, and rated frequency).
However, the accuracy is ±2.0% FS ±1 digit for the Vtr line voltage for three-phase, three wire power and the Vrs line voltage for single-phase, three wire power under the same conditions.
Current ±1.0% FS ±1 digit (at ambient temperature of 23°C, rated input, and rated frequency).
However, the accuracy is ±2.0% FS ±1 digit for the phase-S current for three-phase, three wire power and the phase-N current for single-phase, three wire power under the same conditions.
Active power
Reactive power
±2.0% FS ±1 digit (at ambient temperature of 23°C, rated input, rated frequency, and a power factor of 1)
Reactive power formula: Reactive power = v x i x sin θ
“v” is the instantaneous voltage and “i” is the instantaneous current.
θ is the phase difference between the voltage and current.
Frequency ±0.3 Hz ±1 digit (at ambient temperature of 23°C, rated input, and rated frequency)
Power factor ±5.0% FS ±1 digit (at ambient temperature of 23°C, rated input, rated frequency, and power factor = 0.5 to 1 to 0.5)
Power factor formula: Power factor = Active power/Apparent power
Temperature ±5°C two hours after the power is turned ON (after setting the offset to match the ambient environment)
Communications Communications method RS-485 (two wire half-duplex)
Sync method Start-stop
Unit number setting CompoWay/F: 0 to 99, Modbus: 1 to 99
Baud rate 1.2, 2.4, 4.8, 9.6, 19.2, 38.4 kbps
Transmission code CompoWay/F: ASCII, Modbus: Binary
Data length 7, 8 bits
Stop bit length 1, 2 bits
Vertical parity Even, odd, or none
Maximum transmission distance 500 m
Maximum number of connected Power Monitors CompoWay/F: 31, Modbus: 99

CTs

Item KM20-CTF-5A KM20-CTF-50A KM20-CTF-100A KM20-CTF-200A KM20-CTF-400A KM20-CTF-600A
Rated primary current 5 A 50 A 100 A 200 A 400 A 600 A
Secondary winding 3,000 turns 6,000 turns 9,000 turns
Application frequency 10 Hz to 5 kHz
Insulation resistance Between output terminal and external case: 50 MΩ min. (at 500 VDC)
Dielectric strength Between output terminal and external case: 2,000 VAC for 1 min
Protective element 7.5 V clamp element
Allowable number of connections/disconnections 100 times
Inner diameter 10 dia. 16 dia. 24 dia. 37 dia.
Operating temperature and humidity range −20 to 60°C 85% (with no condensation)
Storage temperature and humidity range −30 to 65°C 85% (with no condensation)
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