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Powered by Safety

®

25

Maintenance

01.4IB.65090A

Do NOT use compressed air to clean the 

device.  This may result in loose dirt or grit 

being blown into bearings or other critical 

parts and causing excessive wear.

!

CAUTION

Either use a vacuum cleaner or wipe with a 

dry lint-free cloth or industrial-type wiper.

Primary insulation, including the insulating 

support plates on which the selector 

switch and grounding switch contacts are 

mounted and the operating rods, should 

also be cleaned.  Wipe clean with a dry  

lint-free cloth or an industrial-type wiper.  

If dirt adheres and will not come off by 

wiping, remove it with distilled water or a 

mild solvent such as denatured alcohol.  Be 

sure that the ground and test device is dry 

before returning it to service.  Do not use 

any type of detergent to wash the surface 

of the insulators, as the detergent may 

leave an electrical conducting residue on 

the surface as it dries.

3)   Lubrication

Powell offer a complete lubrication kit 

(Powlube-104) which contains all the 

lubricants required for maintaining the 

equipment.  Powlube-104 consists of (1) 

A-grease, (1) B-grease, and (1) C-oil.  Prior to 

March 2014, Powell provided Powlube-101 

and Powlube-102 which contained (1) tube 

of Anderol 757 or Rheolube 368A, (1) tube 

of Mobilgrease 28 and (1) bottle of Anderol 

A456 oil.

A - Grease should be lightly applied to 

those bearing surfaces that are accessible.  

Inaccessible surfaces, such as bearings, may 

be lubricated with a light synthetic machine 

oil such as C- Oil.  B - Grease should be 

applied to the electrical contact surfaces.

The contact surfaces of the primary 

disconnect stabs and the fingers of the 

ground shoe should be lubricated with 

a thin film of B - Grease.  Prior to use, 

particularly if the ground and test device 

has been in storage for a long period of 

time, wipe these surfaces with a clean, dry 

cloth, and apply fresh lubricant.

Содержание PowlVac 38

Страница 1: ...Instruction Bulletin 01 4IB 65090A PowlVac 38 CDS Electrically Operated Ground Test Device per ConEd Specification EO 2022 15 Powered by Safety ...

Страница 2: ...Operated Ground Test Device per ConEd Specification EO 2022 15 01 4IB 65090A Contact Information Powell Electrical Systems Inc powellind com info powellind com Service Division PO Box 12818 Houston Texas 77217 2818 Tel 713 944 6900 Fax 713 948 4569 ...

Страница 3: ...ut the safety alert symbol is used to address practices not related to personal injury CAUTION NOTICE NOTICE is used to address practices not related to personal injury Qualified Person For the purposes of this manual a qualified person as stated in NFPA 70E is one who has skills and knowledge related to the construction and operation of the electrical equipment and installations and has received ...

Страница 4: ...Powered by Safety PowlVac 38 CDS Electrically Operated Ground Test Device per ConEd Specification EO 2022 15 01 4IB 65090A This page is intentionally left blank ...

Страница 5: ... Keys KCF and KB 9 2 Key Lock K2 Keys KB and KC 9 3 Key Lock K3 Key KC 9 4 Key Lock K4 Keys KB and KD 10 5 Key Lock K5 Key KD 10 D Control Selector Switch 10 E Interchangeability 10 Ch 4 Installation 12 A Receiving 12 B Handling 12 C Storage 12 D Placing the Ground and Test Device Into Service 13 1 High Voltage Insulation Integrity 13 2 Vacuum Integrity 14 3 Control Voltage Insulation Integrity 16...

Страница 6: ...cedures 18 A Applying Ground 18 B Removing Ground 19 C Procedure for Testing Feeder 21 D Removing Test Probes 22 Ch 6 Maintenance 24 A General Description 24 1 Introduction 24 2 Inspection and Cleaning 24 3 Lubrication 25 Ch 7 Recommended Renewal Parts and Replacement Procedures 26 A Ordering Instructions 26 B Replacement Procedures 26 Contents ...

Страница 7: ... Up Customer Version 8 Figure 4 PowlVac 38 CDS Ground and Test Device Rear View ConEd Version with Upper Primary Disconnecting Devices 11 Figure 5 PowlVac 38 CDS Ground and Test Device Rear View Customer Version with Lower Primary Disconnecting Devices 11 Figure 6 Ground and Test Device on Overhead Crane 12 Figure 7 Test Probe and Cable 21 Tables Table A Field Dielectric Test Values 14 ...

Страница 8: ...Powered by Safety iv PowlVac 38 CDS Electrically Operated Ground Test Device per ConEd Specification EO 2022 15 01 4IB 65090A This page is intentionally left blank ...

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 death or serious injury NOTICE The information in this instruction bulletin is not intended to explain all details or variations of the Powell equipment nor to provide for every possible contingency or h...

Страница 10: ...ent 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 information to aid in showing component locations only All photos and illustrations are shown using deenergized equipment Follow the appropriate safety precautions while handling any of the equipment Failure to do so may result in death o...

Страница 11: ...rement and test instruments intended for use on electrical systems 1000 V and below 6 Where the possibility of induced voltages or stored electrical energy exists ground the phase conductors or circuit parts before touching them Where it could be reasonably anticipated that the conductors or circuit parts being deenergized could contact other exposed energized conductors or circuit parts apply gro...

Страница 12: ...ved Improper use can result in death serious personal injury or damage to the equipment WARNING It is important for the user to develop specific and safe operating procedures to be observed when using the ground and test device The following specific safety precautions must be observed 1 Do not close the grounding switch on an energized circuit The circuit to be grounded should always be treated a...

Страница 13: ...e verified before removing any covers or attempting any service 9 Store the electrically operated ground and test device in a clean dry area free from dust dirt moisture caustic atmosphere and vermin 10 Keep all insulating surfaces which include primary support insulation and insulation barriers clean and dry 11 Check all primary circuit connections to make certain that they are clean and tight 12...

Страница 14: ...ot cleared the circuit However in such a case the relaying at the source of power is expected to cause the source interrupter to clear the circuit B Ground and Test Device Operation 1 Closing The ground and test device is closed by the remote control box at the end of a 50 foot long cable that is supplied with the device Upon depressing the CLOSE pushbutton Figure 1 b the closing springs start to ...

Страница 15: ...Description 01 4IB 65090A Figure 2 PowlVac 38 CDS Ground Test Device ConEd Version b d e g c a f a Primary Disconnecting Device b Test Probe Port c Racking Crank Arm d Test Port Shutter Operator e Handle f Wheel g Ground Connection ...

Страница 16: ...CDS Ground Test Device Front Close Up Customer Version a Key Lock K5 b Key KD c Control Selector Switch d Secondary Disconnect Receptacle e Ground Switch Indicator f Key Lock K2 g Key Lock K4 h Key KB i Key KB j Key KD k Key KC l Key Lock K3 m Key KC n Remote Control Box Plug Receptacle o Key Lock K1 p Nameplate q Key KCF r Key KB a b c e f i k n p d g h j l m o q r ...

Страница 17: ... is a two cylinder lock used to mechanically lock the ground and test device ground making switch in the OPEN position The key lock K2 interlock Figure 3 f is operable only when key KB is inserted and the ground and test device is OPEN When the K2 interlock is operated with the locking bolt extended the ground making switch is open the KB key is retained and the KC key is released Figure 3 i k 3 K...

Страница 18: ... KD key is then inserted into interlock K5 Figure 3 b With the locking bolt retracted and the test port shutters are unlocked the KD key is retained Key KD is removable only when the locking bolt is extended in either of two positions One position is with the test port shutters closed and the other position is with the test probes Figure 7 installed in the test ports and the shutter moved to the p...

Страница 19: ...Devices b b a c a c d d e e a Racking Roller Plate b View Port Windows c Levering Arm d Primary Disconnecting Device e Interference Plate a Racking Roller Plate b View Port Windows c Levering Arm d Primary Disconnecting Device e Interference Plate Figure 5 PowlVac 38 CDS Ground and Test Device Rear View Customer Version with Lower Primary Disconnecting Devices ...

Страница 20: ...mation B Handling After the ground and test device has been removed from its shipping pallet it may be rolled on its own wheels on a level surface This is the preferred way of handling the ground and test device When rolling the ground and test device it should be pushed and steered by the steel frame or the front cover Do not handle or move the ground and test device by the primary disconnecting ...

Страница 21: ...storage This cover must not cut off air flow to the device or condensation may occur under the cover D Placing the Ground and Test Device Into Service Before shipment from the factory all ground and test device functions are thoroughly checked The user must verify functions after receipt Powell recommends that the tests be performed in the sequence listed below 1 High Voltage Insulation Integrity ...

Страница 22: ...resent should be grounded and remain grounded for at least one minute to reduce this electrical charge before coming into contact with the primary circuit WARNING Remove all grounding conductors applied for this test before placing the grounding device back into service CAUTION The tests described above are the only tests required to ascertain insulation integrity Because of the design of the Powl...

Страница 23: ...m interrupter The working condition of a vacuum interrupter should be questioned only if it has failed both tests When testing with DC use a DC high potential test HIPOT set with FULL WAVE rectification Do NOT use half wave rectifiers The capacitance of the vacuum interrupter in combination with the leakage currents in the rectifiers and its DC voltage measuring equipment may result in applying pe...

Страница 24: ...t of the ground and test device remote control box With the secondary disconnect plug inserted in the ground and test device being tested and with key KB captive perform the following steps a Test the Closing Operation of the Ground and Test Device Perform the following to test the closing operation of the ground and test device a Connect the power cord of the remote control box to the ground and ...

Страница 25: ...e interference plates will interfere with each other and deter the insertion of the device The interference occurs before the device reaches the DISCONNECT position Do not force the device past the interference plate or remove the interference plate from the compartment or the ground and test device CAUTION Verify the correct ground and test device is being inserted in the compartment of the feede...

Страница 26: ...cedures contain illustrations of the CUSTOMER device these procedures also apply to the CON ED device For procedures that refer to Key KCF for the CUSTOMER device the same procedures apply to Key KU for the CON ED device NOTICE Although the PowlVac 38 CDS Electrically Operated Ground Test Device is designed and rated to close against a short circuit current within its rating it should not be used ...

Страница 27: ...onnected position by turning the plug clockwise 13 Connect the secondary disconnect plug to the receptacle on the ground and test device Figure 3 d 14 Move to control selector switch from OFF position to CLOSE position Figure 3 c 15 Turn the remote control box ON Figure 1 a and depress the CLOSE pushbutton Figure 1 b to close the ground and test device 16 Move the control selector switch from the ...

Страница 28: ...key KB Figure 3 i The ground and test device is now mechanically locked in the OPEN position Key KB is now captive and key KC is now removable Figure 3 k 12 Transfer key KC to key lock K3 and rotate Figure 3 m The key KC is now captive The ground and test device racking access shaft is now accessible 13 Insert the racking handle and rotate the handle counterclockwise to move the ground and test de...

Страница 29: ...N Figure 1 a and depress the CLOSE pushbutton Figure 1 b on the control box to close the ground and test device 6 Move the control selector switch to the OFF position Figure 3 c and turn the remote control box OFF Figure 1 a 7 Disconnect the remote control box power cord from the ground and test device Figure 3 d 8 Rotate key KB in key lock K1 to electrically disable the ground and test device 9 T...

Страница 30: ...s are supplied with similar interlock functions However the CON ED device uses Key KU for Key Lock K1 and the CUSTOMER device uses Key KCF for Key Lock K1 Key KU and Key KCF are NOT INTERCHANGEABLE Although these operating procedures contain illustrations of the CUSTOMER device these procedures also apply to the CON ED device For procedures that refer to Key KCF for the CUSTOMER device the same pr...

Страница 31: ... the remote control box ON Figure 1 a and depress the OPEN pushbutton Figure 1 d on the remote control box to open the ground and test device 21 Move the control selector switch to the OFF position Figure 3 c and turn the remote control box OFF Figure 1 a 22 Disconnect the remote control box power cord from the ground and test device Figure 3 n 23 Rotate key KCF in key lock K1 Figure 3 q The groun...

Страница 32: ...onditions such as number of operations time between uses and storage conditions 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 been in storage for an extended period of time it is recommended that it be inspected and cleaned before being used See Ch 4 ...

Страница 33: ... as the detergent may leave an electrical conducting residue on the surface as it dries 3 Lubrication Powell offer a complete lubrication kit Powlube 104 which contains all the lubricants required for maintaining the equipment Powlube 104 consists of 1 A grease 1 B grease and 1 C oil Prior to March 2014 Powell provided Powlube 101 and Powlube 102 which contained 1 tube of Anderol 757 or Rheolube 3...

Страница 34: ...vices and coils 3 Specify the quantity and description of the part and the instruction bulletin number A description should be accompanied by a marked illustration from this instruction bulletin a photo or simply submit a sketch showing the part needed B Replacement Procedures Powell recommends that only qualified technicians perform maintenance on these units Refer to the Qualified Person section...

Страница 35: ...ouston PO Box 12818 Houston TX 77217 Tel 713 944 6900 Fax 713 948 4569 powellind com info powellind com 2006 Powell Industries Inc All rights reserved per ConEd Specification EO 2022 15 01 4IB 65090A PowlVac 38 CDS Electrically Operated Ground Test Device August 2017 ...

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