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S&C Instruction Sheet 682-510 23

Operation

The presence of a dot

in TEST window indi-

cates the VOLTAGE

indicator is in Test

mode

Figure 42. The VOLTAGE indicator is operating properly if a dot
appears in TEST window and a flashing lightning bolt appears
in each PHASE indicator.

Test circuitry can be powered

by flashlight or bright sun

Figure 41. Place a gloved finger over the TEST button to begin
testing.

STEP 3.

Test the VOLTAGE indicator for proper
operation as follows:

(a) Shine a fl ashlight approximately 4 inches (102

mm) above the photocell, and simultaneously
cover the TEST button with a gloved fi nger. See
Figure 41. When the sun is shining brightly, it can
be used to power the test circuit.

(b) If a dot

appears in the TEST window and a

fl ashing lightning bolt

in each of the three

PHASE indicators, then the VOLTAGE indicator
is operating properly. See Figure 42.

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Содержание Remote Supervisory Vista

Страница 1: ...g the Gas Pressure Gauge 9 Gauge Needle Fluctuations from Rapid Ambient Temperature Changes 9 Operation Manually Opening Closing or Grounding a Way 10 Locking Out Grounded Position 14 Locking In Closed Open or Grounded Position 15 Electrically Opening Closing or Grounding a Way 16 Motor Operator Decoupling 20 Checking for Voltage Using Optional VOLTAGE Indicator 22 Low Voltage Phasing Using Option...

Страница 2: ...fer to this publica tion Proper Application WARNING The equipment in this publication must be selected for a specific application The application must be within the ratings furnished for the equipment Ratings for this gear are listed on a ratings label at the front of the switchgear See Specification Bulletin 682 31 for more information Warranty The warranty and or obligations described in S C s P...

Страница 3: ...ures or requirements that can result in product or property damage if instructions are not followed Following Safety Instructions If you do not understand any portion of this instruction sheet and need assistance contact your nearest S C Sales office or S C Authorized Distributor Their telephone numbers are listed on S C s website sandc com or call the S C Global Support and Monitoring Center at 1...

Страница 4: ...d Components Live G 6700 C DANGER Never Drill Into Tank Hazardous Voltage Contains Pressurized SF6 Gas G 6682 D DANGER Keep Away Hazardous Voltage Mr Ouch G 6699 E WARNING Check Gas Pressure Before Operating Switchgear G 6686 F WARNING Always Test Voltage Indicator For Proper Operation G 6689 G WARNING Always Visually Confirm Blade Position G 6693 G 6694 Option L2 This label is located on the side...

Страница 5: ...hes and fault interrupters may be energized by backfeed 8 DE ENERGIZING TESTING AND GROUNDING Before touching any bushings or components inside the switchgear that are to be inspected replaced serviced or repaired always disconnect load inter rupter switches and fault interrupters from all power sources including backfeed test for voltage and properly ground 9 TESTING Test the bushings for voltage...

Страница 6: ... live switching of load circuits Fault interruption is initiated by a programmable over current control Conversion from single pole trip con trol to three pole trip control is accomplished using a personal computer See S C Instruction Sheet 681 515 for instructions on programming the control The three pole fault interrupters may be fitted with motor operators and controls so they may be electrical...

Страница 7: ... Motor operator control rack Operation counter PUSH TO TEST LAMPS button Receptacle for portable remote control Operation pushbuttons POWER switch Battery charger LOCAL REMOTE switch Position indicating LEDs Figure 5 Low voltage enclosure User specified RTUs optional User specified communication device optional Motor operator control boards ...

Страница 8: ... interrupter switch or fault interrupter Operation selector prevents inadvertent operation from the Closed position directly to the Grounded position and vice versa S C overcurrent control Manual operating handle Viewing window under the VOLTAGE indicator TRIP indicators for single pole fault interrupters TRIP indicator for three pole fault interrupters Top of switchgear Top of switchgear Gas fill...

Страница 9: ... the Vista tank experiences rapid changes in ambient temperature the gas pressure gauge needle may temporarily move to indicate a higher gas pressure when the tank is rapidly cooled or a lower gas pressure when the tank is rapidly heated This phenomenon may occur for instance with sudden direct exposure to intense sunlight The gas pressure gauge uses a small reference gas cham ber filled with heli...

Страница 10: ...ressure gauge is in the Green zone or the Green and Yellow striped zone by lifting the viewing window cover on way one See Figure 9 Note If the SF6 gas pressure gauge is in the Green and Yellow striped zone the switchgear can be operated but the tank must be repaired if necessary and refilled with SF6 gas as soon as possible STEP 1 Open the viewing window cover and confirm the position of the load...

Страница 11: ...ons see Figure 12 and prevents inadvertent operation directly from the Closed position to from the Grounded position STEP 3 If the operation selector is blocking operation remove the electrical operation mechanical blockingkeyfromthemotoroperatorandrotate the operation selector out of the way as shown in Figure 13 STEP 4 In the far left position the operation selector allows operation between the ...

Страница 12: ...re 15 STEP 6 Rotate the manual operating handle in the appropriate direction to open close or ground the load interrupter switch or three pole fault interrupter Operation to the Open position is shown in Figure 16 Figure 15 Insert the manual operating handle Figure 16 Rotate the manual operating handle Manual operating handle Operating mechanism Recharge line ...

Страница 13: ... See Figure 17 For single phase fault interrupters When the fault interrupter is operated from the Closed position it will move to the Open posi tion before the TRIP indicator will appear To reset the TRIP indicator Operate by going from the Open position back to the Closed position For three phase fault interrupters When the fault interrupter is operated from the Closed position it will move towa...

Страница 14: ...ing the optional VOLTAGE indicator option suffix L1 or L2 as instructed under the Checking for Voltage Using Optional Voltage Indicator section on page 22 or use an alternate method STEP 9 Open the viewing window cover again and confirm the position of the load interrupter switch or the three pole fault interrupter by visually observing the position of the blades Use the manual operating handle to...

Страница 15: ...otor operator into position insert a padlock through the operating mechanism and the center hole in the locking collar See Figures 21 through 23 Figure 22 Locked in the Open position Figure 23 Locked in the Grounded position Figure 21 Locked in the Closed position Operating mechanism Locking collar ...

Страница 16: ...parate control board that includes Close Open and optionally Ground operation pushbuttons switch position indicating lamps anoperationscounter aPUSHTOTESTLAMPS button and a receptacle for portable remote control See Figure 24 STEP 2 Turn the LOCAL REMOTE switch to the Local position See Figure 24 STEP 3 Verify the position indicating lamp on the control board matches the position of its asso ciate...

Страница 17: ...ing handle is removed from the operating disk of the motor operator See Figure 27 STEP 5 Make sure the electrical operation mechanical blocking key is set in the motor operator operating disk See Figure 28 Figure 28 Replace the electrical operation mechanical blocking key Manual operating handle Stop position ...

Страница 18: ...the operation selector The operation selector prevents inadvertent operation of the motor operator Replace the mechanical blocking key See Figures 30 and 31 Figure 29 Rotate the operation selector out of the way Figure 30 In the far right position the operation selector allows operation between the Closed and Open positions Operation selector Figure 31 In the far left position the operation select...

Страница 19: ...igure 32 Close to Open Open to Grounded optional Grounded to Open Optional Open to Close An electrical interface in the controls will not allow the motor operators to move to from the Close position directly from to the Grounded position WARNING ALWAYS make sure the cables con nected to the load interrupter switch or fault interrupter are de energized before selecting the Grounded position Failure...

Страница 20: ...ted on the operating disk collar See Figure 33 STEP 2 Lift the motor operator over the operating shaft of the gear See Figure 34 STEP 3 Forsubmersibleapplications donotremovethe cable from the motor operator See Figure 35 Figure 33 Loosen the bolt Figure 34 Lift the motor operator Figure 35 Do not remove cable Cable connection ...

Страница 21: ...STEP 4 Reposition the motor operator to one side of the operating shaft See Figure 36 STEP 5 Refasten the bolt to the stop ring located on the operating disk collar See Figure 37 Figure 36 Reposition the motor operator Figure 37 Refasten the bolt ...

Страница 22: ...ure 39 A blank indicator means either There is no voltage at the bushing The VOLTAGE indicator is malfunctioning If any of the PHASE indicators are blank pro ceed to Step 3 on page 23 to test the VOLTAGE indicator for proper operation See Figure 40 WARNING Before using a voltage indicator ALWAYS test for properoperation Ifthevoltageindicatorisnotoperating properly test for voltage using an alterna...

Страница 23: ...t sun Figure 41 Place a gloved finger over the TEST button to begin testing STEP 3 Test the VOLTAGE indicator for proper operation as follows a Shine a flashlight approximately 4 inches 102 mm above the photocell and simultaneously cover the TEST button with a gloved finger See Figure 41 When the sun is shining brightly it can be used to power the test circuit b If a dot appears in the TEST window...

Страница 24: ...nyoftheflashinglightningbolts still do not appear the VOLTAGE indicator may be damaged Test for voltage using an alternate method See Figure 44 The absence of a dot in TEST window indicates the VOLTAGE indicator is not in Test mode Figure 43 Make sure there is sufficient light to run the test circuitry and the TEST button is completely covered by a gloved finger Figure 44 If one or more PHASE indi...

Страница 25: ... turn for the two ways to be phased and measure the phase to ground voltage See Figure 45 Ac voltage range is 5 8 Vac d If the voltage measured at each phasing pin is greater than zero and they are equal proceed to Step 4 on page 26 e If the voltage measured at any of the phasing pins is zero the phases are not energized and phasing cannot be performed If the voltages measured are not equal the vo...

Страница 26: ... to zero indicating the cables are in phase c Keep the test probe on Phasing Pin 1 of the second way and move the other test probe to Phasing Pin 2 of the first way Measure the phase to phasevoltage SeeFigure49 When comparing different phases of the two ways thevoltageshouldbe1 7to2timesthephase to ground voltage mea sured in Step 3 on page 25 d Keep the test probe on Phasing Pin 1 of the second w...

Страница 27: ...ed per sons See the Qualified Persons section on page 2 2 Always follow safe operating procedures and rules 3 Before touching any bushings or components always discon nect load interrupter switches and fault interrupters from all power sources including backfeed and test for voltage 4 After the switchgear has been completely disconnected from all sources of power and tested for voltage ground all ...

Страница 28: ... accessible only to qualified persons Enclosure Finish The responsibility for ensuring that the finish protects the enclosure lies with both the manufacturer and the user Enclosures provided are finished with S C s Ultradur II Outdoor Finish which provides lasting protection To retain this protection the user should take periodic corrective action as follows STEP 1 Touch up any penetration of the ...

Страница 29: ...aving already experienced some corrosion follow the instruction in the Enclosure Finish section on page 28 for specific instructions If no further exposure to a corrosive environment is expected one treatment may be enough To remove accumulated contaminants use a mild detergent and potable water The detergent should be mild soap not bleach or any cleaners that contain chloride Cleaning alone may b...

Страница 30: ...ns Failure to observe these precautions can result in a flashover injury and equipment damage 1 Completely de energize the switchgear and disconnect it from all power sources 2 Terminate bushings with an insulated cap or other appropri ate cable termination capable of withstanding the test volt age 3 Verify that the SF6 pressure gauge is in the Green zone Table 1 Maximum Insulation Test Voltages V...

Страница 31: ...l ity of the switchgear can result in a flashover injury and equipment damage In addition always verify that the SF6 pressure gauge is in the Green zone before proceeding with any testing DANGER Do not exceed the test voltages given in Table 1 on page 30 and Table 2 Exceeding the test voltages can cause a flashover of the isolating gap or phase to phase insulation of the switchgear This can lead t...

Страница 32: ... Phase A to Way 3 Phase A from Way 1 Phase B to Way 2 Phase B etc To measure resistance perform the following proce dure STEP 1 Clamp the two current carrying probes of the resistance measuring device to the bushing conductors of the current carrying path to be measured See Figure 54 In this example the resistance is being taken between Way 1 Phase A and Way 2 Phase A STEP 2 NOTICE DO NOT take res...

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