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Safety Information

4 S&C Instruction Sheet 681-510

Reorder Information for Safety Information

Location

Safety Alert Message

Description

Part Number

A

WARNING

Keep Out—Hazardous Voltage Inside

G-6681

B

DANGER

Hazardous Voltage—Always Consider Circuits and 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-6694
(Option “-L2”)

Location of Safety Labels

D

C

B

F

E

G

A

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Содержание Vista Series

Страница 1: ...ns from Rapid Ambient Temperature Changes 8 Operation Pre Operation Checks 9 Operating from Closed to Open Position 11 Operating from Open to Grounded Position 12 Operating from Grounded to Open Posit...

Страница 2: ...roper 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...

Страница 3: ...ot followed NOTICE NOTICE identifies important procedures or requirements that can result in product or property damage if instructions are not followed Following Safety Instructions If you do not und...

Страница 4: ...Always Consider Circuits and 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 C...

Страница 5: ...upter is grounded 7 BACKFEED Bushings cables load interrupter switches and fault interrupters may be energized by backfeed 8 DE ENERGIZING TESTING AND GROUNDING Before touching any bushings or compone...

Страница 6: ...al or single pole load switching and fault interruption through 12 5 kA symmetrical for other possible ratings refer to the nearest S C Sales Office Fault interruption is initiated by a programmable o...

Страница 7: ...en Manual operating handle Viewing window under the VOLTAGE indicator Trip indicators for single pole fault interrupters can be seen through the viewing window TRIP indicator for three pole fault inte...

Страница 8: ...nal gas pressure gauge for Vista switchgear models rated 15 kV 12 5 kA sym short circuit that have catalog numbers ending with R1 suffix Green zone Red zone Green Yellow zone Orange zone Gauge Needle...

Страница 9: ...isconnect switch blade through the viewing window See Figures 9 and 10 Also inspect the current carrying components inside the tank specifically for dislodged hardware signs of arcing and significant...

Страница 10: ...Closed and Open positions Operation Selector Operation Selector Figure 12 Rotating the OPERATION selector out of the way Operating disk Operating disk STEP 3 If the OPERATION selector is blocking the...

Страница 11: ...rrupter See Figures 15 and 16 STEP 4 When operating from the Closed to Open position the operating handle must be rotated all the way to the Stop position as shown on the label to open and recharge th...

Страница 12: ...ndicator optionsuffix L1 or L2 as instructed under the Checking for Voltage Using Optional Voltage Indicator section on page 17 or use an alternate method STEP 3 Insert the manual operating handle int...

Страница 13: ...pages 9 and 10 are completed STEP 2 Insert the manual operating handle into the notch of the operating mechanism STEP 3 Rotate the manual operating handle in the clockwise direction to a stop in the...

Страница 14: ...ting handle into the notch of the operating mechanism STEP 3 Rotate the manual operating handle in the clockwise direction to a stop in the Closed position to close the load interrupter switch or faul...

Страница 15: ...3 and 24 When operating from the Closed to the Open position the operating handle must be rotated all the way to the Stop position as shown on the label to recharge the mechanism See Figure 25 For thr...

Страница 16: ...ctor and the left side hole of the locking collar See Figure 27 Locking In Closed Open or Grounded Position To lock a load interrupter switch or fault interrupter into position insert a padlock throug...

Страница 17: ...window STEP 2 Test the VOLTAGE indicator complete voltage indication circuit and phasing circuit if furnished for proper operation as follows a Shine a flashlight approximately 4 inches 102 mm above t...

Страница 18: ...test circuit If the dot or any of the flashing lightning bolts still do not appear the VOLTAGE indicator may be damaged Test for voltage using an alternate method See Figures 34 and 35 PHASE indicato...

Страница 19: ...either There is no voltage at the bushing The VOLTAGE indicator is malfunctioning Flashing lightning bolt indicates presence of voltage at the associated bushing A blank LCD panel indicates an absence...

Страница 20: ...40 c Place the other test probe on each of the phasing pins in turn of the two ways to be phased and measure the phase to ground voltage See Figure 38 d If the voltage measured at each phasing pin is...

Страница 21: ...ting that 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 SeeFigure42...

Страница 22: ...rrupterswitchandfault interrupter grounding means are removed STEP 2 Make certain the load interrupter switches and fault interrupters are in the correct positions Open or Closed STEP 3 If a pad mount...

Страница 23: ...itches and fault interrupters from all power sources including backfeed test for voltage and properly ground 4 Always assume the bushings are energized unless proved otherwise by test by visual eviden...

Страница 24: ...enclosure must be refinished by the user before the finish has weathered for example to match other equipment a special precaution must be taken The entire surface must be sanded to provide a tooth t...

Страница 25: ...g or performance requirements for the switch gear A dc withstand design test is specified for new equip ment because the switchgear may be subjected to dc test voltage when connected to the cable The...

Страница 26: ...0 Hertz Impulse BIL 12 15 5 95 30 15 24 27 125 40 20 36 38 150 40 20 The dc cable thumping voltage is 50 of the dc cable test voltage because of voltage doubling that will occur at the open end of the...

Страница 27: ...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 46 In this example the resistance is being t...

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