DS(X)S722 type electronic three-phase active and reactive composite watt-hour meter
1. The application scope
DS(X)S722 type three-phase three-wire/ three-phase four-wire electronic active and reactive composite watt-hour meter is adopted to three-phase double direction power / electric energy measurement special IC/MST measurement technology, it can measure rated frequency 50Hz of three-phase active and reactive electric energy. Its performance is in conformity with "GB/T 17215.321-2008", "GB/T 17215.323-2008".
The ambient temperature is -30ºC~55ºC, the relative humidity is not over 85%.
2. Function and Feature
-1.0 class three-phase three-wire / three-phase four- wire active electric energy measurement .
-2.0 class three-phase three-phase /three-phase four-wire reactive energy measurement.
-active,reactive power pulse output independently
-active,reactive energy has two machines registers.
-90º sine reactive electric energy measurement , to guarantee that the accuracy of measurement of reactive electric energy when unbalance load
-active,reactive electric energy double direction measurement
-high accuracy,high reliability,low power consumption
-The wide working temperature range.
-need not to calibrate for long-term working
3. Specification and main technical data
Type: DS(X)S722 DT(X)S722
Name: three-phase three-wire three-phase three-wire
Accuracy class:Active1.0Reactive2.0 Active1.0 reactive2.0
Specification:3*100V 1.5(6)A3(6)A 3*57.7/100V3*220/380V
1.5(6),3(6),5(20),10(40),15(60),30(100)
Start: under the condition of rated voltage, rated frequency and power factor equaling 1, when load current is 0.4% rated current, electric energy pulse output indication light lighting continually, the watt-hour meter has electric energy pulse output.
Potential movement:when exerting 115% rated voltage,current electric circuit breaking, in the testing time, it does not produce more than one pulse for the meter or testing output.
Rated power:50Hz
Power consumption:voltage circuit<=2W and 10VA current circuit<=1VA
Ambient condition: standard working humidity -20ºC-45ºC limit working temperature-30ºC-55ºC relative humidity<=85%
Power source voltage:normal working voltage:0.9Vn-1.1Vn limit working voltage:0.8Vn-1.15Vn
Weight: about 2KG
Outer dimension: 248.5mm*148mm*76.5mm
4. Working Element
Tested three-phase voltage and current through each sampling circuit change from the suitable H.L input to three-phase power / electric energy measurement special IC, output is in proportion to the three-phase active power, from the pulse massage to the register, to realize three-phase active electric energy measurement, tested three-phase voltage and current through each sampling circuit change from the suitable H.L output to 90º sine electronic movement phase network, importing three-phase power/ electric energy measurement special IC, output is proportion to tested three-phase reactive power, from H.L to register, to realize three-phase reactive electric energy measurement. The watt-hour meter output pulse width is 90ms of electric energy testing pulse.
Zhejiang Songxia Electric Meter Co., Ltd. is recommend by the national economy and commerce authority department, founded in 1992, is one of the earliest manufacture in our city, and also the largest export company in the field of meters in Wenzhou. Of the earliest manufacture in our city, and also the largest export company With building area of more than 12000m2 and kinds of high precision specialized equipment. High and new-technology industries and advanced technology use in our many kinds of products. Our products have more than 40 national certificates authorized by the national technology management. We get export certificate from 1999 and our products are very popular and famous in domestic markets, export to many countries and areas such as Pakistan, Nepal, Thailand Bangladesh, Philippine, ltaly, Sudan, Taiwan, etc. Of the earliest manufact.
Our company is established in high-tech and best quality, recognition the customer is the most important, quality is the best, service is the best and credit standing is the best, and we carry out these in our production, Supply and distribution. Our company has perfect quality system. It has passed the ISO9001 Quality System, CCC Quality certificate and KEMA Quality certificate, carrying out currently national standard and International Electro Technical Commission IEC521 standards strictly. With outstanding achievements, our company has got many honorary titles by our government such as Abide by contract, keep promise enterprise, Outstanding enterprise, Consumer recommends goods, Quality brand in Zhejiang Province etc.
We stillcarry on the developmentand research of new products constantly; Absorbing advanced technology and modernized technology equipments and management. We will abide by quality promise with the sprite of expanding, innovating quality, and marketing. Songxia will be more powerful and good further by your support.
