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Summary of Contents for DynAmp LKP-180
- Page 1 MODEL LKP-180, LKP-300, & LKP-400 DIRECT CURRENT METERING SYSTEMS Installation, Operation and Service Instructions Manual Item No. 041749 Rev. K DynAmp, LLC 3735 Gantz Road Phone +1 614.871.6900 www.dynamp.com Grove City, Ohio 43123 USA Fax +1 614.871.6910 help@dynamp.com...
- Page 2 Installation, Operation and Service Manual LKP Series This Page is Intentionally Blank © 2016 DynAmp, LLC Page 041749 K...
- Page 3 Information in this document is subject to change without notice. © 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2006, 2008, 2011, 2016 DynAmp, LLC. All rights reserved. Reproduction for purposes other than operation and service without written permission of DynAmp, LLC is strictly forbidden.
- Page 4 Installation, Operation and Service Manual LKP Series This Page is Intentionally Blank © 2016 DynAmp, LLC Page 041749 K...
- Page 5 Use of the equipment in a manner not specified by the manufacturer can impair GENERAL the protection provided within. DynAmp does not assume liability for the customer’s failure to comply with the rules and requirements provided in this manual. This equipment is designed to be connected to hazardous electric voltages.
- Page 6 Installation, Operation and Service Manual LKP Series This Page is Intentionally Blank © 2016 DynAmp, LLC Page 041749 K...
- Page 7 Installation, Operation and Service Manual LKP Series DynAmp, LLC Customer Support For further assistance, contact DynAmp Customer Support at: Americas: Telephone: +1 614.871.6900 Fax: +1 614.871.6910 8:00 AM to 5:00 PM USA Eastern 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 –...
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- Page 9 LKP Series REVISION PAGE Page Change Reason For Revision Date Rev NEW 9/97 Rev A Added LKP-400 information, updated LKP-180 & 300 7/98 Drawings Rev B Updated mounting instructions, accuracy diagnostics 8/99 information, and wiring diagrams. Rev C Warranty, Installation Considerations...
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Page 11: Table Of Contents
6.12 ACCURACY DIAGNOSTICS (OPTIONAL) ................ 29 7. MAINTENANCE & SPARE PARTS ______________________________________ 31 PERIODIC MAINTENANCE ....................31 ANNUAL MAINTENANCE....................31 CALIBRATION INTERVALS ....................32 SPARE PARTS ORDERS - ROUTINE OR EMERGENCY........... 33 RECOMMENDED SPARE PARTS ..................33 © 2016 DynAmp, LLC Page 041749 K... - Page 12 Table 5.3 Form for Recording Channel Voltage Measurements ..........23 Table 7.1 Spare Parts List* ....................33 Table 7.1 Spare Parts List* continued ................. 34 Table 8.1 Technical Bulletin List .................... 37 Table 9.1 Drawing List ......................39 © 2016 DynAmp, LLC Page 041749 K...
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Page 13: Safety
Use a wire and breaker or fuse (time-delay) sized adequately for the maximum burden of 20 VA/kA of measured current. The wire should have an insulation rating of 600Vac and 80°C minimum temperature rating. © 2016 DynAmp, LLC Page 1 041749 K... - Page 14 Use of the equipment in a manner not specified by the manufacturer can impair the protection provided within. DynAmp does not assume liability for the customer’s failure to comply with the rules and requirements provided in this manual. © 2016 DynAmp, LLC...
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Page 15: Handling And Storage
-40 to 70°C -40 to 158°F Storage Humidity: 85%, non-condensing DynAmp, LLC does not assume liability for the customer’s failure to comply with handling and storage requirements. For further assistance, contact DynAmp customer support. © 2016 DynAmp, LLC Page 3... - Page 16 Installation, Operation and Service Manual LKP Series This Page is Intentionally Blank © 2016 DynAmp, LLC Page 4 041749 K...
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Page 17: Description
The DynAmp, LLC LKP Series 16 Channel are systems for accurately measuring direct current in a bus. The Models in this series are: LKP-180, LKP-300 and LKP-400. Each model consists of a Measuring Head, a Metering Unit, and multi-conductor cables. -
Page 18: Electrical
5. A normally closed relay contact for accuracy diagnostics output. This feature is only available when the accuracy diagnostics option is ordered. 6. Optional isolated shunt output. Scaling is per customer order: 0-10V, 4-20mA available. © 2016 DynAmp, LLC Page 6 041749 K... -
Page 19: Specifications
Installation Category Pollution Degree Contingent upon DynAmp, LLC computer analysis of bus system. The LKP systems are factory-set for the correct voltage and frequency (50 or 60 Hz) per customer order. To operate an LKP system at a different line frequency than was ordered, move jumper JP1 (located on the control board inside each module) to the desired frequency. - Page 20 Overall Dimensions, in. (mm): LKP Metering Unit (all) 66 (1676)H x 48 (1220)W x 16 (406)D LKP-180 Measuring Head (Version 1) 78.3 (1989)H x 111.1 (2823)W x 25.2 (640)D LKP-180 Measuring Head (Version 2) 102.2 (2597)H x 101.3 (2572)W x 25.2 (640)D LKP-300 Measuring Head (Version 1) 97.4 (2473)H x 142.8 (3627)W x 25.2 (640)D...
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Page 21: Installation
Visible damage must be reported to the carrier immediately. Concealed damage (not evident until the system is operated) must be reported to DynAmp, LLC immediately. For all handling of the Measuring Head, use lifting straps capable of carrying a 4400lbs (2000kg) load. - Page 22 I.) CAUTION: The part-line insulation pieces (located on the mating surfaces of the head) contain sensitive electronic devices, are brittle, and can be easily damaged if one is not careful during installation. © 2016 DynAmp, LLC Page 10 041749 K...
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Page 23: Installation Precautions (Live Bus)
Warning : Keep all exposed head cable leads from touching the bus, ground, or any support structures. Consult with DynAmp about using a shorting plug at each connector. INSTALLATION PRECAUTIONS (LIVE BUS) If the unit is to be installed on a live bus, the following precautionary measures must be taken before installing the Measuring Head: Make sure that the cables are disconnected from the head during installation. -
Page 24: Magnetic Considerations: Measuring Head
The general guidelines below should be applied only when a detailed analysis of your bus system is not available. DynAmp, LLC will perform one detailed computer analysis of the proposed location of the Measuring Heads within your bus system at no charge. -
Page 25: Head Installation
It is also recommended that appropriate sized eyebolts be used in conjunction with the straps to lift the head. © 2016 DynAmp, LLC Page 13 041749 K... - Page 26 You can use any grease or oil, but use of ‘MolyCote’ or ‘Moly-Lub’ is highly recommended. © 2016 DynAmp, LLC Page 14 041749 K...
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Page 27: Completing The Head Installation
(the Metering Unit side). Record these values for future reference. Note that the head sections do not have to be assembled together before performing the resistance check. So, the head can be easily checked before mounting on the bus. © 2016 DynAmp, LLC Page 15 041749 K... - Page 28 Metering Unit These resistance readings are the room temperature values of the copper channel coils. Measured values can be 50% higher if head is hot and/or cable length is longer than 30 feet. © 2016 DynAmp, LLC Page 16 041749 K...
- Page 29 51 & 52 240-550 240-550 240-550 Hall Signal - Channel #6 53 & 54 240-550 240-550 240-550 Hall Signal - Channel #7 55 & 56 240-550 240-550 240-550 Hall Signal - Channel #8 © 2016 DynAmp, LLC Page 17 041749 K...
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Page 30: Metering Unit Installation
+55°C at all times should be used. The location should be protected from rainfall or snow. The location should be within reach of the head cable length to be routed (33 feet or 10 meters). © 2016 DynAmp, LLC Page 18 041749 K... -
Page 31: Metering Unit Wiring
However, it is now necessary to take a complete set of channel voltage readings. These readings serve two purposes: one, to verify that all channels are operating properly and two, to aid in magnetic centering of the head. With the bus current © 2016 DynAmp, LLC Page 19 041749 K... - Page 32 A reading of 35-38 V when immediately adjacent channels are significantly different may indicate that one of the two SCRs in the channel has failed. © 2016 DynAmp, LLC Page 20 041749 K...
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Page 33: Magnetic Centering
Note that (1) it would not be necessary to change the horizontal positioning since the channel 1 voltage is not excessive and (2) an absolute balance between opposing channels is unnecessary. Lowering the higher readings is more important than achieving perfect balance. © 2016 DynAmp, LLC Page 21 041749 K... - Page 34 This data will be valuable for future troubleshooting or maintenance. When the desired final position of the head has been obtained, anchor the head permanently in place, ensuring adequate support while taking into consideration effects such as, vibration or wind loading. © 2016 DynAmp, LLC Page 22 041749 K...
- Page 35 [ ] LOOP BURDEN (TS2 - 5 & 6) : [ ] LINE VOLTAGE: (TS 3 - 2 & -3): [ ] BUS CURRENT (kA): Serial Number: ________________________ * NOTE: read the magnetic centering section carefully. © 2016 DynAmp, LLC Page 23 041749 K...
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Page 37: Theory Of Operation
SYSTEM DESCRIPTIONS Effects of stray fields are nullified by joining a number of magnetic assemblies like the one just described in a closed path around the bus. Figure 6.2 shows four such assemblies © 2016 DynAmp, LLC Page 25 041749 K... -
Page 38: Circuit Functions
The Metering Unit also contains one main power transformer, circuit breaker, and the resistors or shunts to develop output voltages. A 4-channel system is used here as an illustration to simplify the explanation. © 2016 DynAmp, LLC Page 26 041749 K... -
Page 39: Metering Unit
The error amplifier circuitry consists of U106 through U109 and associated circuitry. The error amplifiers serve two purposes, to amplify the Hall error signal and to filter it before sending it to the comparators. © 2016 DynAmp, LLC Page 27 041749 K... -
Page 40: Comparators And Pulse Generator
The burden resistor should have a low temperature coefficient (25 ppm or better). The Metering Unit is supplied with a two-pole circuit breaker mounted inside the enclosure, on the main panel. © 2016 DynAmp, LLC Page 28 041749 K... -
Page 41: Accuracy Diagnostics (Optional)
SECOND-alert the operator. Basically, each module inside the Metering Unit has 4 channel LEDs and two power supply monitoring LEDs. The following is a description of their functionality: © 2016 DynAmp, LLC Page 29 041749 K... - Page 42 Contact Terminals Condition TS2-17,18 TS2-18,19 Open Closed Fault condition, zero bus current*, or Metering Unit turned off Closed Open Normal operation • see notes above on zero bus current condition. © 2016 DynAmp, LLC Page 30 041749 K...
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Page 43: Maintenance & Spare Parts
As is true with any electronic circuitry, proper maintenance will prolong the service life. DynAmp, LLC recommends the following program be performed at the recommended interval to prevent or detect damage to the LKP system and to ensure continuing high- accuracy performance. -
Page 44: Calibration Intervals
Disconnect power to the system before servicing or replacing fuses. CALIBRATION INTERVALS DynAmp does not specify required intervals of calibration for 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: •... -
Page 45: Spare Parts Orders - Routine Or Emergency
SPARE PARTS ORDERS - ROUTINE OR EMERGENCY Requests for spare parts should be directed to "Inside Sales" at DynAmp, LLC during normal hours, if possible, or via any method shown above for off-hours. When contacting us, please present as much information as possible, such as the related equipment Model and Serial Numbers, the required part name, DynAmp, LLC item numbers and other identifying or vendor number(s), and your time needs. - Page 46 All Fuses are Time lag MDA style (3AB) ¼” by 1 ¼” (6.3 mm x 32mm), 250 Volt Only required if accuracy diagnostics option is installed. Disconnect power to the system before servicing or replacing fuses. © 2016 DynAmp, LLC Page 34 041749 K...
- Page 47 Installation, Operation and Service Manual LKP Series SERVICE ASSISTANCE For further assistance, contact DynAmp Customer Support at: Americas: Telephone: +1 614.871.6900 Fax: +1 614.871.6910 8:00 AM to 5:00 PM USA Eastern 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 –...
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- Page 49 The following is a list of available technical bulletins that contain relevant information in regards to high current measurements and the use of LKP systems. The technical bulletins are available upon request from DynAmp, LLC. Always consult the factory for a list of the latest technical bulletins.
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- Page 51 Assembly: Supply & SCR Drive PC Board 75B108106 Outline and Mounting: LKP Series 16 Channel Metering Unit 02D107892 Outline and Mounting: LKP-180 Measuring Head (version 1) 02D108148 Outline and Mounting: LKP-180 Measuring Head (version 2) 02D108149 Outline and Mounting: LKP-300 Measuring Head (version 1)
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