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Equipment Description

01.4IB.50023A

PowlVac® Electrically Operated 15kV Ground and Test

per Long Island Railroad Specifications

Figure 3

Mechanism - Top View

a. Grounding Switch Stationary Contacts

b. Ground Making Switch Moving Contacts

c. Auxiliary Switch

d. Ground Bus

e. Control Relay

f. Stored Energy Mechanism

g. Pawl Return Spring Weldment

h. Ratchet Wheel

i. Pawl Support Arm

j. Eccentric Roller

k. Crank Arm

l. Camshaft

a

b

c

d

e

f

h

k

i
j

l

g

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Содержание PowlVac ARG 4 Series

Страница 1: ...Instruction Bulletin 01 4IB 50023A PowlVac Electrically Operated 15kV Ground and Test Device 15kV Electrically Operated G T per Long Island Railroad Specifications Powered by Safety...

Страница 2: ...Operated 15kV Ground and Test per Long Island Railroad Specifications 01 4IB 50023A Contact Information Powell Electrical Systems Inc powellind com info powellind com Service Division 7232 Airport Blv...

Страница 3: ...may result in minor or moderate injury CAUTION CAUTION used without the safety alert symbol is used to address practices not related to personal injury NOTICE is used to address practices not related...

Страница 4: ...Powered by Safety PowlVac Electrically Operated 15kV Ground and Test per Long Island Railroad Specifications 01 4IB 50023A This page is intentionally left blank...

Страница 5: ...ption 7 A General 7 B Rating 7 C Primary Disconnect Stabs 7 D Ground Making Switch 7 E Stored Energy Mechanism 8 F Test Ports 16 G Levering In Device 16 H Interlocking 17 I Shutters 17 J Operating Sol...

Страница 6: ...ted Position 23 3 Moving the Ground and Test Device from the Connected Position to the Disconnected Position 24 4 Removing the Ground and Test Device from the Upper Switchgear Compartment 24 Ch 5 Oper...

Страница 7: ...es 38 1 Grounding Switch Movable Contact 38 2 Grounding Switch Stationary Contacts 38 3 Closing Coil Assembly 39 4 Charging Motor Assembly 39 5 Shunt Trip Coil 40 6 Control Relay 40 7 Latch Check Swit...

Страница 8: ...in Shipping Carton 21 Figure 11 Control Selector Switch in Off Position 26 Figure 12 Connecting Control Box to Ground and Test Device 26 Figure 13 Inserting Secondary Disconnect Plug 26 Figure 14 Con...

Страница 9: ...servicing maintenance or any act requiring the operator to make physical contact with the equipment the power source must be disconnected and the equipment grounded Failure to do so may result in deat...

Страница 10: ...illustrations contained in this document may not represent the exact construction details of each particular type of ground and test device The illustrations in this document are provided as general...

Страница 11: ...source N Exception No 1 An adequately rated permanently mounted test device shall be permitted to be used to verify the absence of voltage of the conductors or circuit parts at the work location prov...

Страница 12: ...emporary protective grounding equipment and connections shall have an impedance low enough to cause immediate operation of protective devices in case of unintentional energizing of the electric conduc...

Страница 13: ...insulated 4 Use only the test probes furnished with the device to plug anything into the test ports Use of other plugs may damage the test port or may result in a poor connection which could be danger...

Страница 14: ...cribed in this document has DANGER WARNING CAUTION and instruction labels attached to various locations All equipment DANGER WARNING CAUTION and instruction labels shall be observed when the circuit b...

Страница 15: ...power circuit breaker it is designed to temporarily replace for grounding and testing purposes The rating nameplate Figure 1 i on the front of the device will give the ratings applicable to any indiv...

Страница 16: ...over at the left Figure 4 a is supported from the lower front cover Its output shaft is screwed to a coupler which insert into the eccentric drive shaft This shaft is supported in the needle bearings...

Страница 17: ...Probes shown with test leads attached b Key Lock K3 c Racking Assembly d Levering In Shutter e View Window f Power Receptacle g Control Selector Switch h Key Lock K2 i Nameplate j Secondary Disconnec...

Страница 18: ...er Long Island Railroad Specifications Figure 2 Ground and Test Device Right View j a b c d e f g h i a Crank Arm Roller b Racking Gear c Racking Crank Arm d Worm Gear e Levering In Shutter Interlock...

Страница 19: ...condary trip prop acting on the primary trip prop roller The component of force tends to make the primary trip prop move downward but it is restrained by the secondary trip prop face acting on the pri...

Страница 20: ...oad Specifications Figure 3 Mechanism Top View a Grounding Switch Stationary Contacts b Ground Making Switch Moving Contacts c Auxiliary Switch d Ground Bus e Control Relay f Stored Energy Mechanism g...

Страница 21: ...Powered by Safety 13 Equipment Description 01 4IB 50023A Figure 4 Mechanism Left View a Charging Motor b Shunt Trip Coil c Motor Cutoff Switch d Connecting Rod e Close Latch Adjusting Screw a b c d e...

Страница 22: ...Figure 5 Mechanism and Trip Linkages a Center Phase Operating Lever b Jackshaft c Primary Trip Prop Adjusting Screw d Main Cam Roller e Primary Trip Prop f Main Drive Cam g Primary Trip Prop Roller h...

Страница 23: ...ed by Safety 15 Equipment Description 01 4IB 50023A Figure 6 Cam and Fundamental Link Positions A Device Open Springs Charged Links Reset B Device Closed Springs Discharged C Device Open Springs Disch...

Страница 24: ...ing gear is rotated by a worm gear on a shaft which is terminated in a hexagon drive nut attached with a shear pin This shaft points in a direction from the front to the back of the ground and test de...

Страница 25: ...d with numerous interlocks as standard features and many more can be added if required by a specific user The standard interlocks include 1 The levering in mechanism cannot be operated unless the grou...

Страница 26: ...st device end Figure 8 Remote Control Box N Key Locks The ground and test device is provided with numerous key lock interlocks and include 1 Key Lock K1 Key KA The key lock K1 interlock is a one cylin...

Страница 27: ...ECONDARY DISCONNECT PL 5 PIN PLUG KT1 KEY INTERLOCK KT2 KEY INTERLOCK MR MOTOR RELAY 43 EG T SELECTOR SWITCH DEVICE IDs 60600G13 125VDC 125VDC 125VDC TRIP CLOSE 125VDC 2 1 2 1 8 6 4 NC NO C 7 5 3 4 3...

Страница 28: ...ground and test device is in the CLOSED and locked position Key KB is then inserted in to key lock K3 With the locking bolt retracted and the test port shutters unlocked key KB is retained O Control S...

Страница 29: ...oved the ground and test device may be removed from the shipping pallet Refer to Ch 4 Installation B Handling for more information Figure 10 Ground and Test Device in Shipping Carton B Handling After...

Страница 30: ...c conditions it should be cleaned and dried before being placed into service 4 The device should be covered with a cloth or plastic cover to prevent dust accumulation on the device during long term st...

Страница 31: ...ated device into the switchgear these coding plates will interfere with each other and deter the insertion of the device The interference occurs before the device reaches the DISCONNECT position Do no...

Страница 32: ...ing it to its normal closed position The trip paddle will be released by this action and will return to its normal position The maximum force required on the racking handle for normal insertion of the...

Страница 33: ...against a short circuit current within its rating it should not be used to deliberately apply a ground to an energized line or bus The operator should ensure that the circuit to be grounded is deener...

Страница 34: ...lug clockwise to lock Figure 12 Figure 12 Connecting Control Box to Ground and Test Device 5 Connect the compartment secondary disconnect plug to the secondary disconnect receptacle on the ground and...

Страница 35: ...al Push to Trip paddle The OPEN circuit is now electrically disabled and cannot be electrically or mechanically tripped OPEN Key KA is now available Figure 16 Figure 16 Key KA in Lock K1 2 Insert Key...

Страница 36: ...est probes in the test ports Key KB is now available 6 Transfer Key KB to Key Lock K2 and rotate Key KB is now captive and Key KA is available 7 Transfer Key KA to Key Lock K1 and rotate Figure 16 The...

Страница 37: ...ssible when the test probes are inserted in the test receptacles the stud will be energized if the ground and test device is connected to an energized circuit It is imperative that the operator insula...

Страница 38: ...ns If the ground and test device is used relatively infrequently the interval between inspections may be longer than a year but may include only a few operations When the ground and test device has be...

Страница 39: ...the mechanism for loose damaged or excessively worn parts Operate the grounding switch several times Operate the levering in mechanism through one or two complete cycles and check for smoothness of op...

Страница 40: ...Oil Crank Pins Figure 22 j Anderol 456 Oil Motor Drive Shaft Roller Needle Bearings Figure 22 k Anderol 456 Oil Pawls Figure 22 l Anderol 456 Oil Close Latch Shaft Face Figure 22 m Rheolube 368A Grea...

Страница 41: ...ing Guide Rod q Primary Trip Prop Shaft Support Bearing r Primary Trip Prop Shaft Roller a Main Primary Disconnect Fingers b Grounding Switch Hinges c Grounding Switch Contacts d Levering In Device Wo...

Страница 42: ...the primary trip prop roller and the secondary trip prop is 0 005 to 0 015 With a 0 015 wire gauge between the trip bar lever and the secondary trip prop adjusting screw the latch check switch should...

Страница 43: ...eplacement of contact parts Do not adjust these settings unnecessarily a Initial Kick Off Spring Height Adjustment The initial height setting of the kick off springs is measured with the ground making...

Страница 44: ...gh Voltage Insulation Integrity With the grounding switch OPEN wire the three upper primary stabs of the device to a high potential test set and ground the three lower primary stabs and the frame of t...

Страница 45: ...e parts may be improved periodically renewal parts may not be identical to the original parts Table B Recommended Renewal Parts lists the recommended spare parts to be carried in stock by the user The...

Страница 46: ...is deenergized disconnected by means of a visible break and securely grounded Do NOT start to work on a closed ground and test device or a ground and test device with the main closing spring charged...

Страница 47: ...test device or a ground and test device with the main closing spring charged CAUTION Perform these steps to replace the closing coil assembly a Remove the upper portion of the ground and test device...

Страница 48: ...of the ground and test device front cover b Unplug the trip coil from the wiring harness c Remove the two bolts holding the trip coil assembly to the mechanism frame and remove the assembly d Insert...

Страница 49: ...this instruction bulletin f Close the grounding switch electrically several times to ensure that the mechanism is working properly g Replace the upper front cover 8 Trip Paddle Interlock Switch The t...

Страница 50: ...ates smoothly f Replace the upper front cover 10 Auxiliary Switch The auxiliary switch is located on the left hand side panel of the ground and test device Figure 3 c Ensure that the control circuits...

Страница 51: ...t in fingers top center and bottom The second and fourth slots are empty 12 Ground Shoe Finger Assembly The ground shoe assembly is located at the rear edge of the ground and test device floor pan bet...

Страница 52: ...irport Blvd Houston TX 77061 Tel 800 480 7273 powellind com info powellind com 2006 Powell Industries Inc All rights reserved 15kV Electrically Operated G T per Long Island Railroad Specifications 01...

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