Instruction manual for var/power factor controller scp 250 publication: 9 1100 00 99y revision: t 01/08.
911000099y rev t scp 250 introduction i introduction this instruction manual provides information about the operation and installation of the scp 250 var/power factor controller. To accomplish this, the following information is provided. • general information and specifications • control description...
First printing: november 1984 printed in usa copyright © 2008 basler electric, highland illinois, usa january 2008 confidential information of basler electric, highland illinois, usa. It is loaned for confidential use, subject to return on request, and with the mutual understanding that it will not ...
911000099y rev t scp 250 introduction iii contents section 1 • general information ................................................................................................ 1-1 introduction...........................................................................................................
Iv scp 250 introduction 911000099y rev t figure 4-11. Sse and scp 250-m connections ..................................................................................... 4-13 figure 4-12. Ssr and scp 250-g connections .....................................................................................
911000099y rev t scp 250 general information 1-1 section 1 • general information introduction the scp 250 controls generator (scp 250-g) or motor (scp 250-m) power factor or vars by monitoring the voltage and current and supplying a control input to a voltage regulator. When the scp 250 is controlli...
Caution the scp 250 should not be put into operation until after the motor is up to rated speed and the field is excited. Isolated bus applications the scp 250 is not intended for use on isolated bus systems (systems providing power independent of a larger power source, such as a utility). In an iso...
911000099y rev t scp 250 general information 1-3 type tests vibration: 2 g in each of three mutually perpendicular planes swept over the range of 10 to 500 hz for a total of six sweeps, 15 minutes per sweep shock: withstands up to 15 g in each of three mutually perpendicular planes ul recognition re...
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Section 2 • controls controls illustration and description scp 250 controls are shown in figure 2-1 and described in table 2-1. Figure 2-1. Scp 250 controls table 2-1. Description of scp 250 controls locator control description a mode switch. This switch selects between var and power factor control....
2-2 scp 250 controls 911000099y rev t locator control description b var/power factor adjust control. This control is used to establish the var level or power factor, depending on the position of the mode switch. The control has two sets of calibration marks—one set for var control and one set for po...
Section 3 • functional description introduction scp 250 functions are illustrated in figure 3-1 and described in the following paragraphs. Figure 3-1. Scp 250 function block diagram inputs the scp 250 has two inputs: a voltage input and a current input. The scp 250 measures the real and reactive pow...
3-2 scp 250 functional description 911000099y rev t voltage limiting the scp 250 voltage limiter prevents the voltage regulator from supplying full or no excitation if utility power is lost and the generator main breaker remains closed. Voltage limiting is adjustable between ±10% and ±30%. Control r...
911000099y rev t scp 250 installation 4-1 section 4 • installation general upon receipt of an scp 250, check the part number against the requisition and packing list for agreement. Inspect for damage, and if there is evidence of such, file a claim with the carrier and notify the basler electric regi...
Figure 4-1. Scp 250 outline and drilling dimensions 4-2 scp 250 installation 911000099y rev t.
Connections scp 250 connections will vary according to the application (generator or motor) and the type of voltage regulator used. The secondary voltage of the potential transformer used in an application determines which scp 250 power connections are used. Input power (operating power and sensing ...
Figure 4-2. Avc63-12/avc125-10 and scp 250-g connections 4-4 scp 250 installation 911000099y rev t.
911000099y rev t scp 250 installation 4-5 figure 4-3. Kr-f/kr-ff and scp 250-g connections.
4-6 scp 250 installation 911000099y rev t figure 4-4. Kr-f/kr-ff and scp 250-m connections.
911000099y rev t scp 250 installation 4-7 figure 4-5. Mvc 236, ra-70, and scp 250-m connections.
4-8 scp 250 installation 911000099y rev t figure 4-6. Sr-a and scp 250-g connections.
911000099y rev t scp 250 installation 4-9 figure 4-7. Sr-a and scp 250-m connections.
4-10 scp 250 installation 911000099y rev t figure 4-8. Sr-e/sr-f/sr-h and scp 250-g connections.
911000099y rev t scp 250 installation 4-11 figure 4-9. Sr-e/sr-f/sr-h and scp 250-m connections.
4-12 scp 250 installation 911000099y rev t figure 4-10. Sse and scp 250-g connections.
911000099y rev t scp 250 installation 4-13 figure 4-11. Sse and scp 250-m connections.
Figure 4-12. Ssr and scp 250-g connections 4-14 scp 250 installation 911000099y rev t.
911000099y rev t scp 250 installation 4-15 figure 4-13. Xr2001/xr2001f and scp 250-g connections.
4-16 scp 250 installation 911000099y rev t figure 4-14. Xr2001/xr2001f, spm 2000, and scp 250-g connections.
911000099y rev t scp 250 installation 4-17 figure 4-15. Xr2002/xr2002f and scp 250-g connections.
4-18 scp 250 installation 911000099y rev t figure 4-16. Xr2003/xr2003f and scp 250-g connections.
Remote control of the scp 250 if desired, the var/power factor adjust control and mode switch can be relocated away from the scp 250. To relocate the potentiometer and switch, perform the following steps. If only one of the controls is to be relocated, perform only the instructions pertaining to the...
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Section 5 • operation introduction the graph of figure 5-1 illustrates the relationship between power factor and the corresponding ratios of reactive power to real power in an ac system. For example, in a 0.8 power factor load, reactive power is 75% of real power. This graph can be useful when adjus...
8. Vary the var/power factor adjust control from one end of its range to the other. The generator voltage will vary between 10% above nominal to 10% below nominal. When the output limit control is turned clockwise, the variation of generator voltage is extended. 9. Set the output limit control for t...
Maintained over the entire range of loading. In the event that power factor is not maintained at low loading, perform the following steps. A) reduce kw loading to about 20% of rated load. B) adjust the balance control until the system instrumentation indicates the desired power factor has been obtai...
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Route 143, box 269 highland, il 62249 usa http://www.Basler.Com, info@basler.Com phone +1 618-654-2341 fax +1 618-654-2351.