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DynAmp LKAT Plus, Инструкция по установке, эксплуатации и обслуживанию

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Installation, Operation and Service Manual 

 

 

  LKAT Plus EMC 

 

 

 

© 2018 DynAmp, LLC       

       

Page xii 

047331 A

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

This Page is Intentionally Blank 

Содержание LKAT Plus

Страница 1: ...one 1 614 871 6900 www dynamp com Grove City Ohio 43123 USA Fax 1 614 871 6910 help dynamp com LKAT Plus EMC in MU BI DIRECTIONAL HIGH CURRENT MEASUREMENT SYSTEM Installation Operation and Service Manual Manual Item No 047331 Rev A ...

Страница 2: ...Installation Operation and Service Manual LKAT Plus EMC 2018 DynAmp LLC Page ii 047331 A This Page is Intentionally Blank ...

Страница 3: ...hipping or travel Actual method of warranty repair correction will be determined by DynAmp LLC at DynAmp s sole option Such warranty repair shall constitute a fulfillment of all DynAmp LLC liabilities in respect to said items and components In no event shall DynAmp LLC be liable for consequential damages Information in this document is subject to change without notice 2018 DynAmp LLC All rights re...

Страница 4: ...Installation Operation and Service Manual LKAT Plus EMC 2018 DynAmp LLC Page iv 047331 A This Page is Intentionally Blank ...

Страница 5: ...______ 11 4 1 HANDLING PRECAUTIONS 11 4 2 INSTALLATION CONSIDERATIONS 11 4 3 OFF BUS FUNCTIONAL CHECK Optional 12 4 4 MEASURING HEAD INSTALLATION 12 4 5 METERING UNIT INSTALLATION 13 4 6 SYSTEM CHECKOUT 14 5 THEORY OF OPERATION ___________________________________________________ 17 5 1 GENERAL 17 5 2 OLOP TECHNOLOGY 17 5 3 SYSTEM FUNCTIONAL DESCRIPTION 18 5 4 LKAT PLUS METERING UNIT 19 5 5 LKAT PL...

Страница 6: ... PLUS DIAGNOSTIC MEASUREMENTS FORM 2 ENERGIZED PRIMARY BUS 16 FIGURE 5 1 BLOCK DIAGRAM OF THE LKAT PLUS SYSTEM 18 TABLE 2 1 MAIN AND PE PC BOARD ASSEMBLY FEATURES 5 TABLE 3 1 LKAT PLUS SYSTEM SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE 7 TABLE 5 1 TROUBLESHOOTING AN ACCURACY DIAGNOSTICS FAULT INDICATION 20 TABLE 5 2 TRIP CONFIGURATION DETAILS 23 TABLE 5 3 LKAT PLUS ALARM RELAY STATUS 25 TABLE ...

Страница 7: ...ervicing DynAmp LLC does not assume liability for the customer s failure to comply with the rules and requirements provided in this manual HAZARDOUS VOLTAGE This equipment is designed to be connected to hazardous electric voltages Ignoring the installation precautions and warnings can result in severe personal injury or equipment damage To avoid the risk of electrical shock or fire the safety inst...

Страница 8: ...Installation Operation and Service Manual LKAT Plus EMC 2018 DynAmp LLC Page viii 047331 A This Page is Intentionally Blank ...

Страница 9: ...enclosure cover must remain closed at all times during operation to ensure safety of personnel Only authorized personnel or technicians should be allowed to open and service the unit Units are not intrinsically safe Do not place in explosive atmospheres Service must be performed by qualified technicians only If use of an oscilloscope becomes necessary during servicing the scope must be floating an...

Страница 10: ...Installation Operation and Service Manual LKAT Plus EMC 2018 DynAmp LLC Page x 047331 A This Page is Intentionally Blank ...

Страница 11: ... Time From first Sunday in November to second Sunday in March 13 00 GMT to 22 00 GMT From second Sunday in March to first Sunday in November 12 00 GMT to 21 00 GMT After Hours Critical Service Emergency Telephone 1 614 871 6906 5 00 PM to 8 00 AM USA Eastern Time From first Sunday in November to second Sunday in March 22 00 GMT to 13 00 GMT From second Sunday in March to first Sunday in November 2...

Страница 12: ...Installation Operation and Service Manual LKAT Plus EMC 2018 DynAmp LLC Page xii 047331 A This Page is Intentionally Blank ...

Страница 13: ... Service Manual LKAT Plus EMC 2018 DynAmp LLC Page xiii 047331 A MANUAL REVISIONS Page Change Reason For Revision Date all Rev NEW 06 18 4 23 sevl A ECO 3347 Update MUT description and update Table 5 2 and general verbiage 08 18 ...

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Страница 15: ...iner or crate must provide adequate protection from precipitation rain snow ice and direct water contact Adequate shelter must be provided to prevent the accumulation of precipitation rain snow ice and water which can lead to the deterioration or failure of shipping containers or crates and cause water ingress Storage in coastal or industrial areas subject to salt laden or corrosive air or areas o...

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Страница 17: ...gnal when multiple rectifiers with individual LKAT systems are connected in parallel to provide a higher total current LKAT MUT Functional Test This hand held test set allows users to verify system operation and scaling as well as test relay trip points and output signals in the field LKAT Metering Unit Tester LKAT MUT The LKAT MUT is a portable tester used to verify the functionality of Metering ...

Страница 18: ...m When properly installed the mounting hardware maintains the position of the measuring head in the event of temperature fluctuation and or bus vibration An interconnection cable assembly is integral to each half of the Measuring Head The standard length is 33 feet 10 meters Heads with extra long interconnection cables are also available consult the factory for details Standard measuring head cabl...

Страница 19: ... LKAT Plus Metering Unit in the field It is not mandatory that they be factory installed and or calibrated The optional pc board assemblies may be calibrated on site using the LKAT Plus Main Output as the reference measurement 2 4 ADDITIONAL INDICATOR AND OUTPUT DETAIL As noted on the specifications page the LKAT Plus System Metering Unit includes several visual indicators These include Accuracy D...

Страница 20: ...ystem is supplied with two cable assemblies in addition to those connected to the Measuring Head The power input cable assembly is 33 feet 10m in length A keyed circular connector terminates one end for connection to the Metering Electronics The other end is unterminated for connection to the power source by the user during installation The system output cable assembly is 100 feet 30m in length A ...

Страница 21: ... C Response Time td 50 µs di dt Accurately Followed 500 A µs Frequency Response Switch selectable low pass filter No filter 330hz 660hz refer to Figure 3 1 for additional info Line Voltage Sensitivity 0 001 V STATUS INDICATORS MAIN PC BOARD ASSEMBLY Accuracy Diagnostics Status Relay Normally Open Normally Closed Contacts Indicates proper operation or operational problem Accuracy Diagnostics Status...

Страница 22: ...RS RMS DISPLAY PC BOARD Optional Digital Display of Bus Current in kA units 3 Digit Green LCD 2 Full scale Displayed Value configurable DC average or True RMS METERING UNIT GENERAL SPECIFICATIONS Input Power 85 to 264Vac 47 to 440Hz or 110 to 264Vdc Burden on ac Line max 30 VA Working Voltage Signal Output to Metering Unit Low Voltage Circuit 450Vrms Working Voltage Bus to Metering Unit Low Voltag...

Страница 23: ...164 ft 50 m Signal Output Cable 1 100 ft 30 m Power Input Cable 1 33 ft 10 m Environmental rating Head Metering Unit and Interconnection Cables IP65 Note 1 For head interconnection cable lengths exceeding 20m the temperature sensitivity increases 0 02 ºC per 10m additional cable length Figure 3 1 LKAT Plus Frequency Response Normalized LKAT Bandwidth Normalized Frequency f fc fc 1 1 2 4 x 106 A s ...

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Страница 25: ...and plant safety procedures when the unit is to be installed on a live bus 3 Choose a mounting location for the head where the ambient air temperature does not exceed the specified temperature limits The LKAT Plus head may be located indoors or outdoors but should be kept away from extreme heat and solvents Head installations in direct sunlight are not recommended as excessive temperature rise cou...

Страница 26: ...c for Special Order 24Vdc input power The system draws a maximum of 30 volt amperes 2 Refer to the drawing Wiring Diagram LKAT Plus System included at the end of this manual Attach a suitable connector to the unterminated end of the input power cable assembly for connection to the power source to be used for this check 3 Connect the Measuring Head cables A B to the Metering Unit 4 Connect the powe...

Страница 27: ...n the fiberglass mounting channels Position the mounting channels to the bus in the desired location 5 Squeeze a 6 5mm continuous bead of silicone RTV adhesive around the elbow and tube seam indicated by the yellow HEAD SPLITS HERE marker Keep the Silicone RTV on the outside of the elbow cavity There must be sufficient Silicone RTV adhesive to seal any gap between the Measuring Head halves 6 Posit...

Страница 28: ...ng Unit output signal magnitude at the test current The measured Metering Unit output signal magnitude should be equal to or very close to the expected value that was calculated If the Digital Display option is included in the Metering unit the displayed kA level should also be equal to or very close to the expected value that was calculated Refer to SPECIFICATIONS section of this manual for more ...

Страница 29: ...Record Serial Numbers TEST CONDITIONS ZERO PRIMARY CURRENT Head may or may not be installed on bus LKAT Plus SYSTEM must be ENERGIZED for AT LEAST ONE HOUR MEASURE DMM at DMM at ACCEPTABLE RANGE DATE ____ ____ ___ DATE ____ ____ ____ DATE ____ ____ ___ 5V supply P4 1 P4 2 5V 0 5V 15V supply P4 3 P4 4 15V 0 5V 15V supply P4 6 P4 5 15V 0 5V Input A1 P1 1 P1 2 0V 5mV Input A2 P1 3 P1 2 0V 5mV Input B...

Страница 30: ...ms TEST CONDITIONS ENERGIZED PRIMARY BUS LKAT Plus SYSTEM must be ENERGIZED for AT LEAST ONE HOUR MEASURE DMM at DMM at ACCEPTABLE RANGE DATE ____ ____ ___ DATE ____ ____ ____ DATE ____ ____ ___ 5V supply P4 1 P4 2 5V 0 5V 15V supply P4 3 P4 4 15V 0 5V 15V supply P4 6 P4 5 15V 0 5V Input A1 P1 1 P1 2 Within 25mV of Input A2 Input A2 P1 3 P1 2 Within 25mV of Input A1 Input B1 P2 1 P2 2 Within 25mV ...

Страница 31: ...s not generate an opposing magnetic field to null the field produced by the primary conductor inside the Measuring Head The term open path indicates that the sensor is an air core design without magnetic core material The LKAT Plus system operation is based on Ampere s Law which states the line integral of B magnetic flux density around any closed path is equal to µOI permeability multiplied by cu...

Страница 32: ...ith voltage setpoints When the Hall group signal exceeds the reference the green LED will go out and the red LED will illuminate The relay coil will change state under the same conditions The Trip Setpoint LEDs and relay contacts operate in a similar manner Hall IC Array Head Half A Signal Conditioning Scaling Hall IC Array Head Half B Signal Conditioning Scaling SENSOR HEAD 5Vdc 15Vdc POWER SUPPL...

Страница 33: ...red by the system electronics These outputs connect to the Main pc board assembly via a short wire harness Connections to the Measuring Head are made via the Main pc board assembly The u chassis with power supply and Main pc board is mounted on a sub panel inside NEMA 4X enclosure The enclosure cover must be securely closed and cable assemblies connected at all times during normal operation 5 5 LK...

Страница 34: ... its products The end user of the product is responsible for identifying the appropriate interval between calibrations The intervals should be determined based on the following factors Requirements of a Quality Management System Accuracy and permissible limits of errors Purpose and usage Experience with similar products Manufacturer s recommendations Stability of the product Past history Other cha...

Страница 35: ...he LKAT Plus An existing LKCO or DynAmp s portable Opti Cal system is better suited for this purpose Field calibration accuracy depends on the stability of the test bus current the accuracy of the reference current measurement system and ammeters as well as the linearity of the LKAT Plus System 5 8 CALIBRATION ADJUSTMENTS IMPORTANT NOTE To avoid injury and or electrical shock personnel performing ...

Страница 36: ...otection Polarity SW3 Trip 2 Setpoint R33 medium and R46 fine Trip 3 Protection Polarity SW3 Trip 3 Setpoint R34 medium and R47 fine Optional RMS Display PCB Display Decimal Point position DPM Mode RMS Signal Conditioning Options SW1F G H SW1 6 7 8 Input Scale Factor SW1E SW1 5 Input Attenuation SW1A B C D SW1 1 2 3 4 DPM Gain fine R12 NOTE The Optional PE and or RMS Display pc board assemblies ma...

Страница 37: ...complete test stand the following method can be used Refer to Table 5 2 Trip Configuration Details Measure the existing setpoint voltage VSTPT use the equation below to calculate the new setpoint voltage Adjust coarse and fine potentiometers to produce calculated New VSTPT New Trip Current New VSTPT Old Trip Current X Old VSTPT Example Old VSTPT 7V Old Trip Current 70kA New Trip Current 80kA 80kA ...

Страница 38: ...B mounting bracket 4 The Earth Ground connection is only used to shunt common mode noise to earth IMPORTANT NOTE There is no electrical connection from any part of the LKAT Main PCB or its optional daughter PCBs to Earth Chassis ground or the steel PCB mounting bracket or panel There is no electrical connection between the steel PCB mounting bracket or panel to Earth Ground 5 11 CONFIGURING THE LO...

Страница 39: ...t continue to result in an alarm Trip1 relay contacts can be configured for Non Failsafe operation AD relay contacts are failsafe only Trip2 and Trip3 relay contacts present on optional PE PCB assembly are failsafe only Table 5 3 shows the status of the LKAT Plus alarm relay contacts The alarm relay contact condition is shown as it exists at the customer connections to the Metering Unit To convert...

Страница 40: ...Installation Operation and Service Manual LKAT Plus EMC 2018 DynAmp LLC Page 26 047331 A This Page is Intentionally Blank ...

Страница 41: ...out in the Installation section of this manual at least once per year to verify performance of the LKAT Plus system This may help to prevent or detect damage to the system and to ensure reliable performance Use appropriate measures to correct any problems found If LKAT Plus System equipment is exposed to extreme temperatures DynAmp LLC recommends these steps be performed during the hottest time of...

Страница 42: ... interconnection cables in conduit Over molded replacement cable assemblies may be purchased for the power input and output cables Head cable connector s must be replaced by field installable type s or with a new head Refer to Spare Parts List Table 6 1 The LKAT Plus system Measuring Heads require special repair procedures and materials However the heads are very reliable and should require little...

Страница 43: ...em AC DC Input Power 83B109612 Assembly LKAT Plus EMC Metering Unit 75B109595 Assembly LKAT Plus Main PCB Filtering added for EMC 75A109613 Assembly LKAT PE PC Board with EMC Filtering 75A109464 A Assembly LKAT Plus RMS Display PCB 75A108588 C Clamp LKAT Mounting Reference 75A045423 Outline and Mounting LKAT Sensor 02B108390 G Outline and Mounting LKAT Electronics Enclosure 02B108389 C ...

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