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RSQ-3 data sheet 4921240265 UK_2014.06.19

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  DEIF A/S · Frisenborgvej 33 · DK-7800 Skive Tel.: +45 9614 9614 · Fax: +45 9614 9615 info@deif.com · www.deif.com DATA SHEET Read Synchroscope, RSQ-3 ●Precision LED synchroscope●High immunity to harmonicdistortion Document no.: 4921240265FSW version:  1. General information 1.1. Application and measuring principle.......................................................................................................31.1.1. Application.....................................................................................................................................31.1.2. Measuring principle........................................................................................................................3 2. Technical information 2.1. Technical specifications and dimensions...............................................................................................42.1.1. Technical specifications.................................................................................................................42.1.2. Indication.......................................................................................................................................52.1.3. Connections/dimensions................................................................................................................5 3. Ordering information 3.1. Order specifications and disclaimer.......................................................................................................63.1.1. Available variants...........................................................................................................................63.1.2. Order specifications.......................................................................................................................63.1.3. Disclaimer......................................................................................................................................6RSQ-3 data sheet 4921240265 UK DEIF A/SPage 2 of 6  1. General information 1.1 Application and measuring principle 1.1.1 Application The RSQ-3 is a microprocessor-based synchronising unit, providing visual indication of relevant values for synchronising a generator to a net (busbar). It can be used in any kind of installation where manual synchro-nising is required. 1.1.2 Measuring principle The unit measures the busbar (U BUSBAR ) and generator (U GEN ) voltages and frequencies and comparesthese, plus compares the phase angle relationship. Operation: The rotation of the red LED circle indicates the frequency difference. The faster the rotation, the larger thefrequency difference. One rotation per second equals 1 Hz difference.The position of the lit red LED indicates the phase difference between U GEN  and U BUSBAR . The circle repre-sents a degree scale from 0 to 360 degrees with zero degree at the 12 o'clock position. With 36 LEDs theresolution on the reading is 10 degrees.If the frequency difference between U GEN  and U BUSBAR  is higher than 3 Hz, the rotation of the LED circlestops. If it stops with a lit red LED at TOO SLOW , the frequency of the U GEN  is lower than U BUSBAR . If itstops with a lit red LED at TOO FAST , the frequency of the U GEN  is higher than U BUSBAR .RSQ-3 data sheet 4921240265 UKGeneral information DEIF A/SPage 3 of 6  2. Technical information 2.1 Technical specifications and dimensions 2.1.1 Technical specifications Accuracy ±2 electrical degrees Resolution 10 electrical degrees Max. frequencydifference No limit Frequency range 40 to 70 Hz (supply) Temperature -25 to 70 °C (operating) Temperature drift Set points: Max. ±0.2 % of full scale per 10 °C Shock test 15 g - 6 times - 3 directions50 g/6 ms22 g/20 ms Galvanic separation Between inputs and ground: 3750 V - 50 Hz - 1 min Input range (U N ) 100 to 127 V ac  ±20 %220 to 240 V ac  ±20 %380 to 415 V ac  ±20 %440 to 480 V ac  ±20 %(Note: Above 450 V ac : Only +10 %)Busbar inputLoad: 2 kΩ/VGenerator input(Max. 3.0 VA at nominal voltage)Supply for the unit Max. input voltage 1.2 × U N , continuously Above 450 V: 1.1 × U N , continuously2 × U N , for 10 sec Climate HSE, to DIN 40040 EMC CE-marked according to EN 50081-1/2, EN 50082-1/2 and IEC 255-3 Safety To EN 61010-1. Installation cat. III, 600 V. Pollution degree 2 Connections Max. 2.5 mm 2  (single-stranded)Max. 1.5 mm 2  (multi-stranded) Materials  All plastic parts are self-extinguishing to UL94 (V0) Protection Front: IP52. Terminals: IP20, to IEC 529 and EN 60529 Type approval For current approvals see www.deif.com or contact DEIF A/S UL listing On request, the instrument can be delivered according to UL listing:UL508, E230690RSQ-3 data sheet 4921240265 UKTechnical information DEIF A/SPage 4 of 6
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