LPW-305-7 POWER QUALITY ANALYZER > Equipment for power engineering

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Equipment for power engineering
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작성자최고관리자 댓글 0건 조회 41회 작성일 19-03-09 20:26


항상 대량 구매 가능
아날로그보다 훨씬 저렴
IEC 61000-4-30 : 2008 (클래스 A) 준수
ЕN 50160 : 2010에 따른 에너지 감사 보고서

전력 품질 분석기는 IEC 61000-4-30 : 2008 (클래스 A) 및 ЕN 50160 : 2010에 따라 전력 품질 (PQ) 매개 변수를 모니터링 및 제어하도록 설계되었습니다.

이 장치는 정보의 시각적 판독이 불가능하거나 비실용적 인 장소에 설치하도록 설계된 LPW-305의 개정판입니다. 획득 된 정보는 이더넷 네트워크 (Fast Ethernet 100 Mbps, MODBUS)를 통해 최상위 시스템으로 전송됩니다. Windows 및 Linux 용 PQ 모니터 레코더 소프트웨어 LPW-Studio와 함께 제공됩니다.

전원 공급 장치는 85V ~ 600V이며 네트워크 장애시에도 작동 할 수 있습니다.

배달 세트에는 500A의 전류 수집 클램프가 포함됩니다.


응용 분야 :

  • 산업 및 주택의 전력 품질 PQ 파라미터 모니터링
  • SCADA 시스템에 쉽게 통합
  • 기업 및 원격지 (변전소, 워크샵, 정착지 등)에서 PQ 매개 변수의 지속적인 모니터링
  • 전기 에너지 인증, 에너지 검사, 에너지 감사
  • 전기 계량기의 비상 교체
  • 복잡한 장비 고장 진단
  • 고가의 장비 보호
  • PQ 분해를 담당하는 소비자의 결정
Measurement capabilities
Monitoring of power quality (PQ) parameters Real time measurement of all electric power quality parameters through three voltage channels and three current channels with transmission via Fast Ethernet (100 Mbps).
Energy audit Measurement with preservation in the non-volatile memory of all the main parameters of electrical energy through three voltage channels and three current channels. The device allows you to register all electric power quality parameters for the subsequent generation of a report in accordance with IEC 61000-4-30:2008 (class A) and ЕN 50160:2010 for up to 100 days in an autonomous mode, which makes it possible to use the devices for a 7-day energy audit.
Waveform registration Multiple saves of 20 periods in the nonvolatile memory of the device (2048 samples) of the fundamental frequency with a sampling rate of 200 μs both on request and on the occurrence of a given event with preservation of the prehistory.
Access to PQ parameters via Internet The received information is transmitted over the Ethernet network to the top-level system and can be displayed on the computer screen, tablet, smartphone or other device.
Common parameter
Power supply

Rated voltage: ~220 V, 50 Hz
Remains operable in the range of:
- alternating voltage from 85 V to 600 V,
- constant voltage from 120 V to 600 V
It is possible to supply both from one of the phases of measured voltage, and from an individual line.
A wide range of permissible supply voltages ensures the operability of the device even in emergency situations in electric networks. 

Electromagnetic compatibility National standarts Р 51522-99 (МЭК 61326-1-97), Р 51317.6.5
Interfaces Fast Ethernet (100 Mbps), MODBUS software protocol
Compliance with IEC PQ parameters measurement in accordance with IEC 61000-4-30:2008 (class A)
Measurement of harmonics 50 harmonics via voltage and current measurement channels
Operating temperature range From -25 to +60 °С
Power consumption Not more than 5 W
Dimensions Not more than 205x10x65 mm
Weight 0,7±0,2 kg
Life time Not less than 10 years
Real-time clock Built-in
GPS-receiver for synchronization with external antenna (option) Built-in


LPW-305-7 application assumes the use of external current transformers (CT), and when connected to a line with a voltage of more than 0.4 kV - the use of external voltage transformers (VT). From a technical point of view, you can use any certified CTs and VTs that are suitable for your task in the input nominal current range of CT, input nominal voltage range of VT, and having an output nominal range:

  • 1 A or 5 A for CTs with the appropriate selection of the current measuring range in LPW-305-7.
  • From 57 V to 0.4 kV for VTs, depending on the connection scheme of VT to LPW-305-7 and the selection of the voltage measurement range in LPW-305-7.

Typical cases are the use of CTs and VTs with an accuracy class of 0.5S or 0.2S.

As a current transformer it is possible to use current clamp (CC) with current output. In this case, all the specified requirements for CTs also apply to the CCs.


  • re_lpw305_en.pdf (filesize: 2 261 921 bytes, date: 27.02.2018)

    LPW305. User manual.

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