SC / RSS / RSC2 synchroscopes, digital synchronizing relays and generator synchronizing columns
Country: Spain · Model: SC / RSS1 / RSS3 / RSC2
The synchroscopes SC_V, the digital relays RSS1 and RSS3, and the synchro-check relay RSC2 are intended for parallel connection of AC generators with each other or with the network. The same marine series includes a ready-made synchronizing column with a voltmeter, a frequency meter and a synchroscope.
- SC_V synchroscopes
- phase synchronism of two networks or of a network and a generator; single- and three-phase; external resistor box
- SC_VL lamp synchroscope
- lamp indication
- RSS1 / RSS3
- digital synchronizing relay, 96×96 mm; input 110/230/400/440 V ±20 %; 45–65 Hz; phase difference ±180°; accuracy U 0.5 %, f 0.1 %, φ 1 %
- RSC2
- synchro-check relay for two generators: phase difference 5–40° el., delay 0.2–2.5 s, output contact for the breaker
Technical specifications
| SC_V synchroscopes | phase synchronism of two networks or of a network and a generator; single- and three-phase; external resistor box |
|---|---|
| SC_VL lamp synchroscope | lamp indication |
| RSS1 / RSS3 | digital synchronizing relay, 96×96 mm; input 110/230/400/440 V ±20 %; 45–65 Hz; phase difference ±180°; accuracy U 0.5 %, f 0.1 %, φ 1 % |
| RSC2 | synchro-check relay for two generators: phase difference 5–40° el., delay 0.2–2.5 s, output contact for the breaker |
| Synchronizing column | dual/differential voltmeter + dual/differential frequency meter + synchroscope; vertical (180° rotation) or horizontal |
| Standards | EN 60051, EN 61010; DNV (marine series) |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The SC_V synchroscopes check the equality of frequency and phase of two networks, single-phase or three-phase, or of a network and a generator, and are supplied with an external resistor box; SC_VL is a simple lamp version. RSS1 and RSS3 in a 96×96 mm housing show the phase and amplitude of two voltages and carry out the synchronizing maneuver. The input is 110, 230, 400 or 440 V ±20 % (RSS1 two-wire for 110 or 230 V, RSS3 three-wire for 110–440 V), the frequency 45–65 Hz, the phase difference ±180°, the voltage difference tolerance ±100 %, and the accuracy 0.5 % for voltage, 0.1 % for frequency and 1 % for phase and voltage difference. RSC2 compares the voltage, phase and frequency of two generators. The permissible phase difference is set within 5–40 electrical degrees, the minimum hold time is 0.2–2.5 s, and the phase accuracy is ±2.5 %. When both conditions are met, the output relay closes the synchronizing breaker. The synchronizing column is vertical with a swivel bracket for 180° rotation, or horizontal.
How to choose
For simple visual monitoring take SC_V or the lamp SC_VL. When numerical values of voltage, frequency and phase and an automatic maneuver are needed, choose RSS1 for a two-wire 110 or 230 V input or RSS3 for 110–440 V. An automatic command to the breaker based on the phase tolerance and the delay is given by RSC2. For a complete parallel-connection post, order the synchronizing column.
Request a price and lead time
SC / RSS / RSC2 synchroscopes, digital synchronizing relays and generator synchronizing columns. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What is the accuracy of RSS1 and RSS3?
0.5 % for voltage, 0.1 % for frequency and 1 % for phase and voltage difference. The frequency range is 45–65 Hz and the phase difference ±180°.
What setpoints does the RSC2 synchro-check relay have?
A permissible phase difference of 5–40 electrical degrees and a minimum time of 0.2–2.5 s. The phase accuracy is ±2.5 %.
What does the synchronizing column consist of?
A dual or differential voltmeter, the same kind of frequency meter, and a synchroscope. The design is vertical with 180° rotation, or horizontal.
Which standards do these instruments comply with?
EN 60051 and EN 61010, and the marine series has DNV. CE declarations are available for SC3V and RSS3.
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