USER`S MANUAL 6.25KSS6050/5060
Contents
1. these atput terminals are electrically isolated from any other circuits including the system neutral The Converter is shipped with these OUTPUT connections electrically isolated If a digital voltmeter is connected between any one of these OUTPUT terminals and the Earth Ground a significant voltage reading will be obtained This voltage is due to a small leakage current and is not considered a problem since only 1 or 2 ma is involved Output Isolation Many applications require an isolated output primarily for safety reasons when supplying power to a device under test especially if there will be other monitoring equipment connected to the device Other applications can take advantage of the low leakage current of the Converter about 1 or 2 ma This can be useful in systems where the individual leakage currents of the components might exceed the allowed leakage current of a ground fault interrupter Other applications require that the output have a connection to the utility NEUTRAL Normally this would be OUTPUT terminal N The exception would be a two phase output where L1 would be the connection to the system NEUTRAL The Converter is supplied with a short jumper wire If the system NEUTRAL is used to power the INPUT terminals and it is required that the OUTPUT be connected to NEUTRAL this jumper can be employed to make this connection If the INPUT is supplied by two phase AC or by two phases of a three phase system in other words if yo2. 17074 9 s Jamod y 5 GAT WOU si Oy sy SL AIIIN 0 TANVd LNOUS be za OVA0ZZ dyol wwa ANI SS dAd ANN 08 22 LNdLNO AHL 5111 uu IWHLAAN WALSAS AHL N LOANNOO LNdLNO ASWHd 3 19NIS NOILNVO MOV 0909 090955 52 9 LNdNI LAdLNO Dz 021 022 WAT SOT g 721 9 pedl Joy auo 2 N enau pea 30u S di oseyd yids e LON 51941 jJ1 N 104170 104100 Eh A 091 aa S LL 6 punog juowisnipe 19945 2908 296 10 Jeune yoo q y 0 jindul Indu loys e o Jamod aul sdu 5 41 Dy aul Jeyeaig Indu yo MS J0109jas Aouenba4 YOJIMS 101909jas k
3. NNECTIONS The frequency of the output power can be 50 60 Hz and is not related to the input frequency CAUTION The output is floating and is electrically isolated from the input It is necessary to connect the output using one of the following three methods Note that these output voltages are widely adjustable using the voltage adjust rheostat A SINGLE PHASE 120V OUTPUT CASE OUTPUT INPUT GND SYSTEM NEUTRAL 120 VAC HOT LEAD GROUND B SINGLE PHASE 220V OUTPUT CASE OUTPUT INPUT GND SYSTEM NEUTRAL mi 220 VAC HOT LEAD C SPLIT PHASE 220V OUTPUT CASE OUTPUT INPUT GND GROUND 120 VAC HOT LEAD Phase 2 180 phase from Phase 1 SYSTEM NEUTRAL 120 VAC HOT LEAD Phase 1 GROUND 4 SPECIFICATION 6 25KSS6050 5060 Capacity 6 25KVA 5kW Voltage 120 220VAC fait Voltage Range 120V 15 20 or 220V 15 20 Frequency _________ 0 Hz or 60 Hz 5 Prass sige 120 or 220VAC 20 Output Frequency 50 Hz or 60 Hz 400Hz available 0 0004 xtal oscillator Harmonic Distortion lt 3 at 100 Linear Load Output Waveform Pure Sinewave Efficiency AC to AC gt 85 Output Current Overload 150 for 30 75A 120V 42A 220V seconds Power Factor 0 8 Crest Ratio 3 1 Indicator to monitor voltage frequency and loading Detachable amp Remote Control 1 Line Green LED Inverter Green LED Fault Red LED Overload Yellow LED Audible Alarm Conve
4. USER 5 MANUAL 6 25 556050 5060 3 Edition Freguency Converter Vi Ind 911A Milwa YA Ave Burlington n WI 53105 1 INTRODUCTION The conversion of electrical power is an essential requirement for export testing or operation of equipment brought to the U S from abroad The KSS series Frequency Converter is designed to meet these needs as it supplies reliable pure and stable power at an affordable price This Converter is designed with the following unique features Double Conversion IGBT module Single control board design eliminates adjustment and minimizes maintenance LCD display for unit status user friendly design Special overload capacity design 150 overload for 30 sec Built in isolation transformer to ensure total isolation between the input and output Special airflow control to avoid dust accumulation Suitable for any rough operating environments Compact size light weight INOW J YSILYSAANOO AONSNOAYS 0905 090955 52 9 5 88 aul 5 NOILVILNIA OF HO JO UO OU SUIN YOUMS 5101 HOLIMS JJO NO HSNd 6 YOUMS 91 aul ued swe Aejdsiq yoliMs GO1 8 ON 9 YAMOd LAdLNO 9 AQNSNOAYA LAdLNO AOVLIOA LNdLNO 2 AONSNOAYS LANI 2 FOVLIOA LAdNI 1 AW1dSI0 G01 4 YN SI JBUSAUOD OY SIU 91
5. ejdsig Lk 91 Gh vi El LL TANVd cc Input Power Connections and Grounding System Ground Connection The Earth Ground should be provided by the utility This is normally the GREEN wire provided by the utility which at some point is routed to secure earth ground such as a water pipe This wire should be connected to the screw post marked GND on the Converter See photo for location Note that there are no internal electrical connections to this wire with the exception of a small high frequency bypass capacitor for RF suppression Therefore the function of the Earth Ground is simply to maintain the case of the Converter at ground potential Visicomm Industries LLC does not recommend any other connection to the Earth Ground wire which may introduce significant amounts of current and thereby defeat the intended purpose of this wire which is the safety of the operating personnel In particular do not connect this wire to the system neutral wire at any point Output Connection The Power OUTPUT Connections are provided by three barrier terminal posts labeled N L1 and L2 These three terminals constitute the three terminals of an internal auto transformer were L1 is the center tap This is fed by the output winding of a switching transformer Since the only other internal connections are a resonating capacitor the cooling fans and sensing circuits to maintain an output sine wave
6. rter Fault Sounds continuously 150 Delay 30 Seconds current limited Short Circuit Unit will cut out and must be manually restarted Protection EMI Filter 10 100KHz at 40dB 100KHz 100MHz at 7088 Over Temperature Inverter auto cut off when heat sink temp o ver 80 C Operation Temp 10 C to 50 C 14 F to 122 F Environment Relative Humidity 20 90 non condensing Audible Noise lt 45dB Physical Net Weight 188lbs Dimensions Depth x Width x Height 22 88in x 9 0in x 27 50in
7. u have only two incoming power wires this NEUTRAL would not be present and an external wire from the desired OUTPUT terminal to the system NEUTRAL would be required See INPUT CONNECTION DIAGRAM on next page Basic diagram of output stage INPUT POWER CONNECTIONS The frequency of the input power can be 50 60 Hz and is not related to the output frequency CAUTION The Input is Electrically Isolated from the output It is necessary to connect the input using one of the following four methods A SINGLE PHASE 220V INPUT This connection is usually used in 50Hz countries where a neutral is normally available CASE OUTPUT INPUT GND SYSTEM NEUTRAL GROUND a 220 VAC HOT LEAD B SPLIT PHASE 220V INPUT This connection is usually used in 60Hz countries where a 220V line is not normally available and where the input amperage makes using 120V inconvenient CASE OUTPUT INPUT 120 VAC HOT LEAD Phase 2 180 phase from phase 1 ari ag 120 VAC HOT LEAD Phase 1 GROUND SYSTEM NEUTRAL DO NOT CONNECT THIS LEAD C SINGLE PHASE 120V INPUT CASE OUTPUT INPUT GND SYSTEM NEUTRAL 120VAC HOT LEAD EARTH GROUND D THREE PHASE 120 208 VAC USING LINE TO LINE INPUT To be used if the 120V line to neutral connection is limited by the amperage available CASE OUTPUT INPUT PHASE 1 PHASE 2 PHASE 3 DO NOT CONNECT THIS LEAD SYSTEM NEUTRAL IF PRESENT DO NOT CONNECT THIS LEAD OUTPUT POWER CO
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