Transcript Document
PWS 2.3 PLUS Portable Working Standard Page 1 March 2009 Advantages / Benefits Harmonics measurement Ratio test of C.T.´s and P.T´s Print functions U, I, P, Q, S, , cos, f, ... measurements Burden measurements Memory functions Vector Meter error diagram measurements Page 2 March 2009 Advantages / Benefits Robust rubber protected housing Supply from measurement circuits or auxiliary supply Data memory for test results and customer data Wide measuring range with auto ranging Automatic clamp detection Small dimensions and light in weight Page 3 March 2009 Why to use Reduction of annual losses caused by circuit & wiring problems faulty wirings are at the expense of the supplier / utility Service-orientated handling of customer complaints with presence and consultation Short reaction time on customer complaints Reduced expenses of complaints (fast and on-site) Putting-into-operation tests to eliminate faulty wirings Periodical tests after changes in wiring to ensure a correct performance of the installation Sampling tests of contractors for metering Page 4 March 2009 Where to use Energy utilities / suppliers in metering and service departments Contractors in metering and transformer sector Metrological laboratories and institutes Industry with large number of meters and measuring transformers (airports, exhibitions areas, …) Manufacturers of meters Page 5 March 2009 Technical data Basic Characteristics 20 mV ... 300 V (phase-neutral) 1 mA ... 12 A direct connection 1 mA ... 100 A via clamp-on CTs Measurements of all electrical parameters (incl. vector diagram) CT / PT testing (burden, ratio) Accuracy 0.1 %, 0.2 % Options: CALSOFT I Software Clamp-on CTs for 1000A LEMflex© up to 3000A LiteWire Sensors up to 2000 A and 40 kV Page 6 March 2009 Connections Top view [1] [2] [3] [4] Current outputs I1*, I2*, I3* [5] Connection for clip-on CT’s Current inputs I1, I2, I3 [6] Impulse output Voltages connection U1, U2, U3 [7] Impulse input Neutral connection for voltage N Page 7 March 2009 Connections Bottom view [8] Serial Interface RS 232 C [9] Sockets for supply from measurement circuits [10] Auxiliary supply connector Page 8 March 2009 Optional current clamps to the PWS 2.3 PLUS Error compensated clamp-on CT’s for measurements in the range up to 100 A Clamp-on CT’s for measurements in the range up to 1000 A Flexible current transformers LEMflex for measurements up to 30 / 300 / 3000 A Hot sticks for measurement on high voltage potential - AmpLiteWire up to 2000 A - VoltLiteWire up to 40 kV Page 9 March 2009 Operation Concept Display Symbols Control Keys Page 10 March 2009 Software Status Indications Page 11 March 2009 Software Main Menu Meter Test / Error Measurement Measurement, Harmonics, Oscilloscope, Vector Analysis, Circuit testing Transformer Test, Burden & Ratio Energy Measurement, Dial Test Installation (Setup) Page 12 March 2009 Software Error Measurement Page 13 March 2009 Software Measurement of load values UI, power values PQS and display of vector diagram Page 14 March 2009 Software Harmonic Analysis and Waveform display Page 15 March 2009 Software Energy measurement, test of the energy register error and maximum demand Page 16 March 2009 Software Burden measurement of voltage and current transformer Page 17 March 2009 Software Current transformer ratio measurement Page 18 March 2009 Software Administrative data set (ADS) Page 19 March 2009 Software Examples of test results Page 20 March 2009 Software Example of printouts Page 21 March 2009 Windows©-Software CALSOFT Selection of real time readout or readout of sets of data from PWS 2.3 PLUS memory Page 22 March 2009