DIFFERENTIAL CURRENT GENERATOR «POCDIF» (AC/DC - 32A - 50V - 12 ranges)

Transcription

1 PERFORMANCES 12 ranges of AC current from 16 ma to 128 A peak AC permanent current up to 26 ARMS Nine ranges of DC permanent current from 16 ma to 12 A DC current ± 6mA or ± 10 ma stackable to AC current Integrated stopwatch function Total insulation Compliance voltage remaining in the field of TBT voltage (less than or equal to 50VRMS) APPLICATIONS RS Tests of differential circuit breakers Tests of differential switches Isolated current generator Tests according to IEC61008, IEC61009, NF62411/62412, NF in DESCRIPTION "POCDIF" is a versatile current generator. It can be used in qualification or production, for the test of differential circuit breakers, differential switches, circuit breakers, breakers, current relays, fuses (slow, fast, or ultra-fast), current sensors, and other equipment requiring a great mastery in current injection, both in its waveform and its accuracy. To optimize performance and industrial efficiency, the system is modular. The chosen architecture separates the functions on different modules installed in a rack which width is 19 inches. They are easily interchangeable. The basic version includes: o o o A stopwatch for measuring trigger, merge, move,... which takes into account internal events (level of voltage or current) as well as external events (trigger). An acquisition system for measuring current and voltage as well on a stabilized current as on a stealth event with, for example, the ability to achieve a measure of effective value (or peak) on the last period before trigger of the product under test. A generator of waveforms to generate normative profiles but also users profiles from files. Completely autonomous with its local control by touchscreen, it can be controlled remotely from a supervisor system via an Ethernet, RS232 or RS485 link. Several racks can be synchronised through LVDS links to increase the output current or provide a three-phase system. 1 / 10

2 MECHANICS AND ENVIRONMENT COMPLETE GENERATOR Touchscreen LVDS links To other racks Power supply and Alimentation regulation et régulation, Communications Ethernet, RS232, RS485 Un à One quatre to four modules modules générateur Power de generators puissance Analog and digital inputs Module / outputs module Generation entrées / sorties 6 m ADC Power analogiques and measure et output numériques, génération 6 madc sortie puissance et mesure The basic version is supplied with a single module. Three other modules can be added to increase its capacity to 128 A peak. The current generator ± 6 or ±10 madc is separated. It can be added to the main current for tests according to IEC61008 test , IEC61009 test or EN62423 the standards. For easier maintenance, the various modules can be provided separately as spare parts directly interchangeable by the maintenance teams. Touchscreen Width Height Depth (without connectors) Weight (with a map generator) Generator board Dimensions Weight Temperature and humidity Storage temperature Operating temperature Relative humidity Marking Marking Index of protection 483 mm (19 inches) 185 mm (4U) 435 mm 6.2 kg 278 x 130 x 71 mm 0,65 kg -10 C to + 55 C + 0 C to + 40 C 10-90% non condensing CE IP20 2 / 10

3 OUTPUT FUNCTION POWER GENERATOR Rated power By card 200 W Maximum per chassis 800 W Currents with a single card of installed power Maximum permanent AC current 6.5 ARMS Maximum standing DC current 8 ADC Maximum peak current 32.5 A peak Current with four cards of power installed Maximum permanent AC current 26 ARMS Maximum standing DC current 12 ADC Maximum peak current 128 A peak Maximum compliance voltage By card 28 V By chassis Configurable to 28 V or 50 V Precision Regardless of the range 0.02% 0.02% of the programmed value range Bandwidth Full scale 10 Hz - 20 khz Small-signal-3dB 50 khz Isolation of the output compared to the chassis STATE PERMANENT IN AC OPERATION The maximum current per card generator varies: 3.4 ARMS at 10 Hz, 5.5 ARMS at 50 Hz, and ARMS 6.5 to 20 khz (full-wave) STATE STANDING IN DC OPERATION The maximum current per card generator varies: 2.8 ADC to short circuit, 8 ADC under 29 V. The total current of a rack equipped with two cards or more is however is limited to 12ADC in permanent mode. 3 / 10

4 OUTPUT CURRENT OUTPUT 6-10 madc FUNCTION generator 6 madc Current Continuous current DC ± 6.0 my or ± 10,0 my Precision Amplitude ± 1% Proofreading Measure shunt 10 Ω measure isolated on BNC (1) Isolation of the output compared to the chassis Note (1): a measure shunt of 10 Ω is inserted in series to the output of the card. The signal obtained is isolated and then available on an isolated BNC base. FUNCTION OUTPUT POWER Outputs Number Output connector Power AC / DC and 6-10 my Protection of the outputs Short circuit relay Surge protection (2) Isolation of outputs from the chassis 2 (AC/DC and ±6-10 madc not connected together) Base SUB - D female joint size 2 7W2 Note (2) using a voltage-dependent equipment In case of overvoltage, the output of the generator is protected by a high-speed device to short circuit. The minimum impedance of the power source must be: 100 Ω under 230 VRMS 200 Ω under 400 VRMS damage protection circuit. 4 / 10

5 MEASURES MEASURES CURRENT MEASUREMENT Ranges Number 12 Selection Automatic (3) Accuracy of measurement ranges Line 130a Series % Range 32 A Line 16A 0.20% Line 8a 4 A range 0.15% Line 2A Range % Range 128 my Range 64 my 0.10% Range 32 my Range 16 my Note (3) the available ranges depend on the quantity of power modules installed. STOPWATCH Regulation card includes a stop watch function with a resolution of a micro second and a depth up to 30 days. This function allows to measure intervals of time between two internal or externa events: Appearance or disappearance of a current or voltage, Exceeding of a precise value Event on the "Trigger" input... 5 / 10

6 DIGITAL INPUTS AND OUTPUTS FUNCTION INPUTS / OUTPUTS DIGITAL Digital input Operating voltages Maximum tension Maximum current Digital output Operating voltages Maximum tension Maximum current Opto isolated 24 VDC 30 VDC 8 my under 24 VDC Opto isolated 24 VDC 50 VDC 50 madc INPUT AND OUTPUT TRIGGER: TRIGGER input triggers or stops the generation, it is particularly used for testing circuit on default (test IEC ) to detect closing of the poles, TRIGGER output to control other racks and other equipment. INPUT AND OUTPUT SYNC: SYNCHRO input synchronizes the generation with other equipment (generator of voltage, for example), SYNCHRO output allows to synchronize the generation of other devices. 'SYNCHRO' input receives a signal to synchronize the current (red curve) to the voltage (green curve). Power generation begins at the closing of the circuit under test. After a 't1' time, the circuit breaker opens. CONTROL BY A PROGRAMMABLE CONTROLLER : For a static control by the digital inputs / outputs of a programmable controller, the generator is equipped with the following inputs and outputs: Inputs: o Choice of the cycle (4 inputs coding) o Start of the selected cycle o Immediate stop of the current cycle o Self calibration o Application of the results Outputs: they are refreshed after the activation of Demande des résultats entry o Generator ready o Circuit opened o Trigger o End of cycle without trigger o Used range (coding on 4 outputs) 6 / 10

7 EXAMPLES OF CYCLES TRIGGER on a ramp (IEC61008 test ) The meaningful measurements of this timeline: The time between the current start and the disjunction RMS amplitude of the last period before the disjunction (red curve) TRIGGERING on sudden appearance of AC current (IEC61008 test ) Five successive tests are carried out for this test. The meaningful measurements of this timeline: The time between each start current and each disjunction (green curve) RMS amplitude of the last period before the disjunction (red curve) 7 / 10

8 POWER COMMUNICATION INPUTS AND ANALOG OUTPUTS DIGITAL INPUTS / OUTPUTS FUNCTION Analog input 'Pilot EXT' Scale factor Analog output 'IMAGE '. Scale factor Analog output "Pilot ISOLATES" Scale factor ±10V Ridge + 10V for 100% of the selected range ±10V Ridge + 10V for 100% of the selected range ±10V Ridge + 10V for 100% of the selected range DRIVER: The entrance "Driver EXT" receives an analogue signal which has the power to generate form. The amplitude of the current generated is a function of the range: o a current equal to 10% of the range selected for than a volt The output "Driver isolate" delivers an analog signal destined for the entry "Pilot EXT" another rack or other equipment. This signal is: o either identical to the signal "driver EXT" received (copy), o is a volt for a current equal to 10% of the selected range. IMAGE: The output 'IMAGE' delivers an analog signal that has the shape of the current generated. Its amplitude is a function of the used range: o a volt for a current equal to 10% of the selected range. POWER AND COMMUNICATION Power Single-phase Phase + neutral + Earth Voltage (VRMS) 230 ± 10% or 115 ± 10% Frequency 47 to 63 Hz Rated current 6 ARMS under 230 VRMS Inrush current at startup < 70A Protection Time delay fuse Communication (4) Ethernet TCP/IP on RJ45 Serial RS232 SCPI on SUBD 9 points RS485 series SCPI on SUBD 9 points Note (4) of the specific communication protocols can be created on demand on these three media for direct management of the equipment from your system. 8 / 10

9 WAVEFORMS Waveforms can be generated. They are of two types: The forms of base, already recorded in the equipment, Custom forms. THE BASIC FORMS They can be held by setting their frequency, their amplitude and duration. (non-exhaustive list of these waveforms; Abscissa current time, ordinate) SINUS DC (levels) DELAY OF THE CURRENT 0 (IEC61008 test ) DELAY OF THE CURRENT 90 (IEC61008 test ) DELAY OF THE CURRENT 135 (IEC61008 test ) For these two waveforms, the peak amplitude is limited to 100 A. RAMP OFFSET 6mA (IEC61008 test ) 9 / 10

10 "GENEDIF-CSV" OPTION: CUSTOM FORMS With the "GENEDIF-CSV" option, the equipment is capable of generating custom waveforms. In the CSV format, they describe the waveform point by point. They can be easily downloaded in equipment using a utility provided with this option. The minimum length of a sample is 1,2 µs, its maximum duration of 12 seconds. The maximum size of a file is 1024 points The same waveform can be repeated once to infinity. EXAMPLE OF A WAVEFORM: COMMERCIAL REFERENCES Complete Generator ready to be used with a single generator power module POCDIF-EU Power supply 230V POCDIF-SP Power supply 115V Example: POCDIF-EU Complete Generator with power supply 230V Technical reference POC-1500-AC/DC-32A-50V-12G-EU Additional power generating module POCDIF-PCR200 Technical reference PCR-200-AC/DC A - 28V Software option, opening the possibility of custom waveforms POCDIF-CSV Document reference : FT-POCDIF-EN-V3 The information in this document may be changed without notice 10 / 10