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RSQ-3 Users Manual 4189340264 UK

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  DEIF A/S Tel.: (+45) 9614 9614 Frisenborgvej 33, DK-7800 Skive Fax: (+45) 9614 9615 Denmark E-mail: deif@deif.com       D   E   I   F   A   /  User’s manual    Read synchroscope type RSQ-3 4189340264F (UK) ã   Precision LED synchronoscope ã   High immunity to harmonic distortion    Page 2 of 8 Tel.: (+45) 9614 9614 ã  Fax: (+45) 9614 9615 ã  E-mail: deif@deif.com List of contents 1.   Warnings, legal information and notes to CE-marking and UL listing.......3   2.   Application and functionality summary........................................................3   3.   Terminal list.....................................................................................................4   3.1   Overview of the connection terminals...............................................................4   4.   Wiring diagrams..............................................................................................5   4.1   AC input connections........................................................................................5   4.1.1   Connection diagram..........................................................................................5   5.   Commissioning...............................................................................................5   6.   Technical data.................................................................................................6   7.   Dimensions......................................................................................................7   8.   Order specifications.......................................................................................8      User’s manual, Read synchroscope RSQ-3   4189340264F (UK)   1. Warnings, legal information and notes to CE-marking and UL listing This manual gives general guidelines on how to install and operate the RSQ-3. Installing and operating the RSQ-3 implies work with dangerous currents and voltages. Therefore, this should only be done by qualified personnel. DEIF A/S takes no responsibility for operation or installation. If there is any doubt about how to install or operate the system on which the RSQ-3 is measuring, the company responsible for the installation or the operation must be contacted. The RSQ-3 is CE-marked with respect to the EMC directive for residential, commercial and light industry plus industrial environment. This covers all environmental types where the RSQ-3 can normally be used. The RSQ-3 is CE-marked with respect to the low-voltage directive for up to 600V phase to ground voltage, installation category (overvoltage category) III and pollution degree 2. The RSQ-3 can be delivered with UL listing on request. Please refer to the section ‘Technical data’ for installation information as required by the UL. The package contains the following items: ã  Read synchroscope RSQ-3 unit ã  User’s manual ã  Two fixing clamps ã  A plugable connection (mounted on the unit) 2. Application and functionality summary The RSQ-3 read synchroscope is a microprocessor-based synchronising unit providing visual information for synchronising a generator to a net. It is used in any kind of installation where manual synchronising is required.    Page 4 of 8 Tel.: (+45) 9614 9614 ã  Fax: (+45) 9614 9615 ã  E-mail: deif@deif.com Display/reading The unit measures the two input voltages; generator (GEN) and busbar (BB), respectively. The phase difference from GEN’s zero crossing to BB’s zero crossing is calculated by the processor and is shown on the LED circle, consisting of 36 red LEDs. The red LEDs are only lit one at a time and its position indicates the phase difference between GEN and BB. The lit LED simulates the pointer tip of an analogue pointer instrument. If the LED is lit in the 12 o’clock position, the phase difference is 0 degrees. In the 6 o’clock position, 180 degrees etc. With 36 LEDs the resolution is 10 degrees. The movement of the lit LED’s position indicates the frequency difference between GEN and BB. If the indication is turning clockwise (too fast), the GEN frequency is too high in proportion to the BB frequency. If the indication is turning counter-clockwise, the proportion is inversed. The rate of the motion tells about the frequency difference. The faster the rotation, the bigger the frequency difference, e.g. 1 rotation per second = 1Hz. If the BB frequency is 50Hz and the rotation turns right, the GEN frequency will be 51Hz in this example. If the frequency difference between GEN and BB is becoming too big (>3Hz), the circular motion stops and a LED will be lit at the ‘too slow’ or ‘too fast’ mark, dependent on which direction the GEN frequency has to be adjusted to. Power up reset The unit will operate when the GEN voltage exceeds 80% of the nominal value. Below this level no functionality is obtained. 3. Terminal list 3.1 Overview of the connection terminals Terminal no. Signal symbol Signal name 1 R (L1) Busbar voltage x Not used 2 S (L2) Busbar voltage x Not used x Not used x Not used x Not used 5 R (L1) Generator voltage x Not used 6 S (L2) Generator voltage

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Jul 23, 2017
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