DSS79/DTS79系列電子式三相三線/四線有功電能表采用專用大規模集成電路,SMT制造工藝，性能優越，安全可靠。根據用戶需要，產品可提供正反累加計量、分相計量、止逆、缺相指示、分相有功反向指示等擴展功能。
　　該系列產品具有良好的抗電磁干擾，使用壽命長，準確度及可靠性高，負載寬，功耗低，體積小，重量輕，便于安裝、管理自動化、功能擴展方便等特點。其性能符合國家標準GB/T17215-2002《1級和2級靜止式交流有功電能表》。產品可選配紅外和 RS485接口，適用于遠程抄表，通信符合DL/T 645-1997《多功能電能表通信規約》. 生產本產品的質量管理體系通過了GB/T 19001(ISO9001)。
　　　結 構：
　　　■ 電表采用加強型密封，表殼阻燃、抗老化。
　　　■ 黃色、綠色、紅色三只LED燈指示A、B、C失壓，1只紅色LED燈指示電量脈沖。
　　　■ 一路光耦隔離脈沖輸出，輸出寬度約為80ms，供校驗使用。
　　　■ 可選配紅外或RS485接口。
　　　■ 電量顯示可采用計度器或LCD液晶或LED數碼管方式。
　　　技術參數：
　　　■ 額定電壓(V)：三相三線：3×100; 三相四線：3×220/380 3×230/400
　　　■ 工作電壓范圍：70%Un～120%Un
　　　■ 額定電流(A)： 三相三線：3×1.5(6)；
三相四線：3×1.5(6), 3×5(20), 3×5(30), 3×5(40)，3×10(40), 3×10(60) , 3×10(80), 3×15(60) ,3×15(90), 3×20(80), 3×30(100) 　■ 額定頻率(Hz)：50，60
　■ 準確度等級：1級，2級
　■ 功耗：電壓回路（每相）≤2W，10VA；電流回路（每相）≤1VA
　■ 工作溫度(℃)：-25～+55，極限工作溫度(℃)：-45～+70
　■ 相對濕度：≤75%（年平均）
　　■ 平均使用壽命（年）：＞10
　功 能：
　■ 單向或雙向有功電能計量。
　■ 具有脈沖輸出，接入RS-485通信接口，可以實現遠程自動抄表。
　■ 具有防竊電功能。
適用范圍：
■ 3×100V 3×1.5(6)A為經互感器接入式儀表，適用于頻率為50Hz（60Hz）的三相三線 制高壓供電高壓計量的大工業用戶有功電量計費用表。
■ 3×220/380V 3×1.5(6)A 為經互感器接入式儀表，適用于頻率為50Hz（60Hz）的三相 三線制高壓供電低壓計量的大工業用戶有功電量計費用表及三相四線制低壓供電的工業、 非工業用戶有功電量計費用表。
■ 3×220/380V 3×5(20)---- 3×30(100)A 為直接接入式儀表，適用于頻率為50Hz（60Hz） 的三相四線制低壓供電的工業、非工業用戶有功電量計費用表。也適用于用電量大采用三相 四線 制低壓供電的居民照明計費用表。
DSS79 Static 3-phase 3-wire Energy Meter for AC Active Energy
DTS79 Static 3-phase 4-wire Energy Meter for AC Active Energy
Main Features
■ Adopting special large-scale integrated circuit and manufactured with advanced SMT process
■ Long life, excellent & reliable function, high precision, wide load range
■ Low self-consumption, small volume, light weight
■ Easy installation, automatic management, extended function
■ RS 485 and infrared interface can be added for remote reading
■ Good resistance to electromagnetic interference
■ As per user, following function can be added:
Accumulative measurement of positive and negative energy; Separate phase measurement; Indication for anti-reverse, absent phase and negative separate phase of active energy
■ All specification meeting standard GB/T17215-2002 on" Alternating current static watt-hour meters for active energy (classes 1 and 2)", DL/T645- 1997 on" Multi-function watt-hour meter communication protocol"
■ Passed JQAC certificate according to GB/T19001(ISO9001) Structure
■ Specially sealed case of flame-retardant、rust-proof and anti-aging
■ The yellow、green、red LED indicating A、B、C lost voltage and another red LED indicating energy pulse.
■ One channel of optical pulse output for calibration with width of about 80ms
■ RS 485 and infrared interface can be added
■ Displaying energy by means of counter、LED or LCD
Technical Parameters
■ Rated Voltage(V) : 3-phase 3-wire: 3×100; 3-phase 4-wire: 3×220/380 3×230/400
■ Operation Voltage (v) 70%Un~120%Un
■ Rated Current(A) : 3-phase 3-wire: 3×1.5(6);
3-phase 4-wire: 3×1.5(6), 3×5(20), 3×5(30), 3×5(40)，3×10(40), 3×10(60) ，3×10(80), 3×15(60) ,3×15(90), 3×20(80), 3×30(100)
■ Rated Frequency(Hz): 50，60
■ Accuracy: class1, class2
■ Power Consumption: voltage circuit:≤2W/10VA / phase　current circuit: ≤1VA / phase
■ Ambient Temperature(℃): -25~+55，Limits of temperature(℃): -45~+70
■ Relative Humidity: ≤75% (annual average)
■ Life(year):＞15
Function
■ Measuring active energy unidirectional or bi-directional
■ Having pulse output and to realize AMR with RS-485 interface added
■ Excellent anti-tamper & fraud function
Scope of Use
■ 3×100V 3×1.5(6)A is for transformer operated meters suitable for big industrial unit using 50Hz(60Hz) of 3-phase 3-wire electric power which is high-voltage supplied and high-voltage measured
■ 3×220V/380V 3×1.5(6)A is for transformer operated meters suitable for big industrial unit using 50Hz(60Hz) of 3-phase 3-wire electric power which is high-voltage supplied while low-voltage charged or suitable for industrial & non-industrial unit using 50Hz(60Hz) of 3-phase 4-wire electric power which is low-voltage supplied
■3×220V/380V 3×5(20)A----3×30(100)A is for direct connected meter suitable forindustrial & non-industrial unit using 50Hz(60Hz) of 3-phase 4-wire electric power which is low- voltage supplied or suitable for large-energy- consuming residential energy measurement using 3-phase 4-wire electric power which is low- voltage supplied