current and voltage sensors and accessories for smart grid

TRUSTED • PROVEN • ACCURATE

Touching High Voltage Every Day

LINDSEY SENSORSCurrent and Voltage Sensors andAccessories for Smart GridApplications

OVERHEAD & UNDERGROUND

15kV TO 46kV

© 2018 Lindsey Manufacturing. Publication Number 09B-001 SENSORS • September 2018

2Lindsey Manufacturing Co., 760 North Georgia Avenue, Azusa CA 91702 USA Tel +1-626-969-3471 www.lindsey-usa.com

INTRODUCTION

Lindsey Voltage and Current SensorsAccurate, Real-Time MeasurementA mainstay in utilities, Lindsey Sensors provide exceptionally reliable and highly accurate voltage and current monitoring for substation, overhead, pad-mount and submersible underground distribution applications.

Zero phase shift, wide frequency response and superb harmonic performance make Lindsey sensors ideally suited for Volt/VAR control, monitoring, and other distribution automation applications.

Overhead SensorsOur line of medium voltage resistive voltage divider-based voltage and current sensors, conveniently embedded into post insulators, are commonly referred to as Lindsey sensors. Hundreds of thousands have been installed over the past 25 years for good reasons:

• Better than 1% accuracy, excellent harmonic response,and no phase shift on voltage and current provides theconfidence needed for today’s Volt and VAR controlapplications.

• A mean time between failure (MTBF) exceeding 10,000years means true install and forget reliability.

• Construction that meets all the electrical and mechanicalrequirements of post insulators provide endless installationoptions.

ELBOWSENSE™Underground SensorsLindsey has taken this same measurement technology and extended it to medium voltage underground systems:

• Stainless steel housing-based Lindsey 600A voltagesensors, and ring-type current sensors; ideal forsubmersible applications.

• Lindsey 200A elbow and tee-body separable connectorvoltage sensors, and split-core and ring current sensors,are easily installed for submersible and pad-mountapplications.

• Lindsey’s unique underground power supply provides theability to quickly power RTUs, radios, meters, and controlsin underground or padmount applications where auxiliarypower is not readily available.

Lindsey Sensors Are Key To A Better Grid


POST INSULATOR SENSORS

ELECTRICAL RATINGS: INSULATION CLASS 15kV 25kV 35kVIMPULSE (BIL) 110kV 150kV 200kVLEAKAGE DISTANCE (in.) 15.8 24.5 36.5DRY ARC DISTANCE (in.) 8.8 12.6 17.2OVERALL HEIGHT (in.) 13.2 16.6 21.8WITHSTAND* (60Hz, 1 min.) 34kV 40kV 50kVCORONA (extinction) 11kV 19kV 26kVLOW FREQ. DRY FLASHOVER 70kV 100kV 125kVLOW FREQ. WET FLASHOVER 50kV 70kV 95kV

CURRENT SIGNAL OUTPUT:RATIO 600 Amps: 10 VoltOUTPUT BURDEN / LOAD: Calibrated for a 10,000 or greater loadACCURACY: +/- 1%PHASE SHIFT: 0 degrees nominal, +/- 1.5 degreesOPEN CIRCUIT VOLTAGE: 10 Volts at 600 Amps line current

*NOTE: Withstand test is not performed on sensors with a voltage divider. Specify 50hZ, 60hZ.

VOLTAGE SIGNAL OUTPUT: OUTPUT IMPEDANCE: Calibrated for a 1 megohm load

ACCURACY: +/- 0.5%

PHASE SHIFT: 0 degrees nominal, +/- 1.5 degrees

temperature, armor rod, adjacent phases, line angle or insulator contamination.

MECHANICAL:INSULATION CLASS 15kV 25kV 35kV

CANTILEVER STRENGTH (Ult. lbs.) 2,800 2,800 2,800

WEIGHT (lbs.) 37 48 59

SHIPPING WEIGHT (lbs.) 48 58 64

OPERATING TEMPERATURE:Temerature range: -40°C to +65°C

CONDUCTOR DIAMETER RANGE:The two sided keeper is made of aluminum and can accommodate a 0.25 inch to 1.25 inch diameter conductor.

BASIC CONSTRUCTION:The Multicore Sensor is molded from POLYSIL, a high dielctric strength, anti-trackingpolymer developed by Lindsey Manufacturing Company under EPRI contract.

Post Insulator Sensor Specifications



Post Insulator Voltage SensorsLindsey post insulator voltage sensors consist of a high accuracy (better than 1%), zero-phase shift resistive voltage sensor contained in a body with full electrical and mechanical post insulator ratings. These sensors are completely flat through the 20th harmonic, with only a very minor phase shift at high frequencies.

This sensor is available in two terminal packages:

• Multicore-style design allowsthe conductor to be lifted intothe sensor, eliminating theneed to cut the conductor ormake a jumper.

• NEMA pads, ideal for manysubstation applications.

Ordering Table

Part Number Sequence 96AB/C0E0GH

Where:

Code Description Options

A Insulation Class

5=15kV (110kV BIL)6=25kV (150kV BIL)7=35kV (200kV BIL)8=46kV (250kV BIL)

B Leakage Distance

E=Multicore S=Substation/Busbar

E Voltage DividerRatio

1 = 1400:12 = 2200:13 = 3300:14 = 10,000:15 = 60:16 = 120:17 = 166:18 = 200:1X = Special

G Terminal Option

2 = Aluminum Bus Bar, 2 Hole Pads3 = Aluminum Bus Bar, 4 Hole Pads4 = Std. Conductor Keeper (required for Multicore

H Connector

Blank = Standard ITT Cannon Connector C = Cast-in cableG = 20" Cable with Amphenol Connector & Strain ReliefA = Amphenol Connector

Example: 9650/E014A is a 15kV, standard leakage distance, Multicore top style with 1400:1 ratio and supplied with an Amphenol connector.

2=additional 6” (150mm)creep above standard(not available @46kV)3= additional 9” (225mm) creep above standard(not available @35 & 46kV)4= additional 12” (300mm) creep above standard(only available @15kV)

0= Standard (13” for 15kV, 20” for 25kV, 29” for 35kV, 33” for 46kV) (330mm for 15kV, 510mm for 25kV, 740mm for 35kV,840mm for 46kV)



Post Insulator Current SensorsLindsey post insulator current sensors consist of a high accuracy (better than 1%), current sensor contained in a body with full electrical and mechanical post insulator ratings. Depending on model, these sensors are completely flat up through the 40th harmonic.This sensor is available in four terminal packages:• Multicore-style design allows the conductor to be

lifted into the sensor, eliminating the need to cut theconductor or make a jumper. This style sensor is notrecommended for applications requiring accurateharmonic current measurements.

• Busbar-style design is fitted with standard 2-or4-hole NEMA pads, ideal for many substationapplications.

• Tube-type design for where a conductor can bethreaded through and clamped to the stainless steeltube; practical for many switchgear and substationapplications.

• Clamp-top style eliminates the need to cut thephase conductor while providing flat-frequencyresponse up the 40th harmonic. Clamp-top stylesensors can be used in place of any horizontal orvertical line postinsulator.

NEUTRAL CURRENT SENSORThe Lindsey neutral current sensor is commonly used to sense neutral current in small capacitor banks, including both pole mounted and padmount banks. The CT has a tilt-top that opens for easy installation around conductors up to 30mm (1.25’’) in diameter. The neutral current sensor has 1% accuracy and comes complete with a 10.5m (35 ft) cast in cable. The sensor is watertight.

Busbar-style Clamp-top style Tube-type Multicore-style

Ordering Table

Part Number Sequence 96AB/CD0FGH

Where:


A Insulation Class


B Leakage Distance

C Top Configuration

D Current Output Signal

F Clamp-Option

G Terminal Option

1 = 600A:10V (required when selecting Multicore top)2 = 600A:6V3 = 600A:5A4 = 600A:1A5 = 300A:5A6 = 300A:10VX = Special

H Connector

0 = No clamp top chokeC = Clamp-top choke (required when selecting clamp-top option)

0 = 1.185” I.D. stainless steel tube1 = 1.185” I.D. stainless steel (SS) tube with SS bonding clamp2 = Aluminum Bus Bar, 2 Hole Pads3 = Aluminum Bus Bar, 4 Hole Pads4 = Std. Conductor Keeper (required when selecting Multicore top)


C=Clamp-top/Tube-TopE=Multicore (Only available with 600A/10V output option)S=Substation/Busbar

Example: 9650/S3002 is a 15kV, standard leakage distance,Substation/Busbar style with 2-hole NEMA pads, a 600A:5Aratio, and supplied with a standard Cannon connector.





Combined Voltage and Current Post Insulator Sensors Lindsey combined voltage and current post insulator sensors consist of both high accuracy (better than 1%) current and voltage sensors contained in a body with full electrical and mechanical post insulator ratings. All models provide excellent harmonic response for voltages, and all current sensors except for the Multicore style are flat though the 40th harmonic.

This sensor is available in four terminal packages:

• Multicore-style design allows the conductor to belifted into the sensor, eliminating the need to cut theconductor or make a jumper. This style sensor is not recommended for applications requiring accurate harmonic current measurements.

• Busbar-style design is fitted with standard 2-or 4-holeNEMA pads, ideal for many substation applications.

• Tube-type design for where a conductor can bethreaded through and clamped to the stainless steeltube; practical for many switchgear and substation applications.

• Clamp-top style eliminates the need to cut the phaseconductor while providing flat-frequency response up the 40th harmonic. Clamp-top style sensors can be usedin place of any horizontal or vertical line post insulator.

Busbar-style Clamp-top style Tube-type Multicore-style

Ordering Table

Part Number Sequence 96AB/CDEFGH

Where:

Code Description

A Insulation Class


B Leakage Distance


F Clamp-Option

G Terminal Option

Example: 9660/E1204 is a 25kV, standard leakage distance, Multicore top style, with 600A:10V current and 2200:1 voltage output ratios, and supplied with a standard Cannon connector.

1 = 600A:10V (required when selecting Multicore top)2 = 600A:6V3 = 600A:5A4 = 600A:1A5 = 300A:5A6 = 300A:10VX = Special

H Connector

0 = No clamp top chokeC = Clamp-top choke (required when selecting clamp-top option)

0 = 1.185” I.D. stainless steeltube1 = 1.185” I.D. stainless steel (SS) tube with SS bonding clamp2 = Aluminum Bus Bar, 2 Hole Pads3 = Aluminum Bus Bar, 4 Hole Pads4 = Std. Conductor Keeper (required when selecting Multicore top)


1=1400:12=2200:13=3300:14=10,000:15=60:16=120:17=166:18=200:1X=Special

E Voltage DividerRatio

C=Clamp-top/Tube-TopE=Multicore (Only available with 600A/10V outputoption)S=Substation/Busbar

Options




VOLTAGE SENSOR ACCESSORIES

Lindsey VMT Voltage Sensor Relay InterfaceThe Lindsey VMT is a circuit board for inclusion in RTUs or controls that provides an optimum interface between Lindsey Voltage Monitors (overhead or underground) and low impedance protective relays, metering devices, and other IEDs. It features three channels to accommodate a typical 3-phase voltage monitoring application.Lindsey voltage monitoring insulators and underground cable accessories are designed to drive high impedance (low burden) devices. The VMT board provides the needed high impedance input for the Lindsey voltage monitors, and provides outputs designed specifically to drive low impedance devices.

Features include:• 3-phases in a single package• Metering grade accuracy• Wide bandwidth provides resolution to the 70th harmonic• Integral power supply accepts 120VAC, 24VDC, or

48VDC power sources

Specifications Input voltage: 120VAC nominal, 1000VAC maximumOutput voltage: 120VAC nominal, 150VAC maximumFrequency bandwidth: 30 – 4200 HzOutput burden: >10 kOhm

Power RequirementsSelectable120VAC, 135mA (90VAC min, 126VAC max)24VDC, 420mA48VDC, 200mA

Dimensions100mm wide x 250mm long x 50 mm high (4 “ wide x 10” long x 2” tall)1.0 kg (2.25 lbs)

Power Ride ThroughGreater than 15 cyclesUnder loss of control power the VMT maintains signal output for a minimum of ¼ second (does not apply when operated from 48VDC auxiliary power)

Ordering InformationPart number 9350

DISCONTINUED


VOLTAGE MONITORING INSULATORS

SVMI-Style Insulator Voltage SensorsLindsey SVMI insulator voltage sensors are designed to be used in conjunction with overhead distribution reclosers or switches where high accuracy voltage sensing on one or both sides of the device is desired. Automation, CVR/VVO, and other advanced smart grid applications often require the availability of high accuracy voltage readings from both sides of line mounted switching devices. Compact SVMI style sensors are:

• Ideal for retrofitting older reclosers without built-in voltage sensing.

• Ideal for use with reclosers where only high-side voltage sensing is included.

• Ideal for replacing or upgrading low accuracy capacitive-style voltage sensors often built intothe bushings of these type of equipment.

• Compatible with any control, relay, or other IED.

Lindsey SMVI sensors are high accuracy (better than 1%), zero-phase shift resistive voltage sensors contained in a compact insulator. Standard arrester mounting hardware may be used to conveniently mount the SVMI.SVMI sensors are available up through 35kV. All sensors come standard with an Amphenol connector on the end of a 20” cast-in cable. For extension cables and longer cast-in cable option consult factory.

Ordering Table

Ratio Load Impedance of connected device(k-Ohms)

Lindsey Part Number

15kV 50:1 2200 931X/50/2.2M

55:1 1000 931X/55/1M

57.5:1 1000 931X/57.5/1M

60:1 240 931X/60/240K

60:1 500 931X/60/500K

60:1 1000 9315

60:1 2000 931X/60/2M

63.5:1 240 931X/63.5/240K

63.5:1 1000 931X/63.5/1M

63.5:1 2200 931X/63.5/2M

66.4:1 240 931X/66.4/240K

66.4:1 1000 931X/66.4/1M

69.3:1 240 931X/69.3/240K

1400:1 1000 931X/1400/1M

2200:1 1000 931X/2200/1M25kV 79:1 5000 932X/79.5/5M

83:1 1400 932X/83.3/1.4M

110.6:1 1000 932X/110.6/1M

120:1 500 932X/120/500K

120:1 1000 9326

2200:1 1000 932X/2200/1M

35kV 132.8:1 1000 933X/132.8/1M

166:1 500 933X/166/500K

166:1 1000 9337

3300:1 1000 933X/3300/1M

Voltage Class


STANDOFF INSULATOR VOLTAGE SENSORS

Voltage Sensing Standoff InsulatorsLindsey VMI sensors are high accuracy voltage sensors contained within industry standard 3-inch bolt circle standoff insulators. Use in any application where standoff insulators are used. VMI sensors are ideal for use in air-insulated padmount equipment which require the use of standoff insulators to isolate buswork from ground potential. In this application, VMI sensors provide voltage sensing of the supported buswork without the need for additional equipment. VMI sensors are available up through 200kV BIL.

Ordering Table

Part Number Sequence 95A/0FHL

Where:


A BIL/Height

F Voltage DividerRatio

H Connector

L Cable Length Cable Length = “L”x10 feet

2=95kV / 6”3=95kV / 7-12”4=110kV / 10”5=110kV / 12”6=150kV / 14”7=150kV / 15”8=200kV / 18”X=Special

1=1400:12=2200:13=3300:14=10,000:15=60:16=120:17=166:1X=Special

1=2 contact socket2=cast-in pigtail cableX=Special

Example: 9563/0122 is a 7.5” tall, TR202 equivalent, 95kV BIL sensor with 1400:1 ratio and 20 feet cast-in pigtail cable

Corresponding TR2-style insulator cross-reference

BIL/Height code “A” TR2xx Equivalent StandoffInsulator

TR202

TR205

TR208

TR210

3

4

68


200A AND 600A UNDERGROUND VOLTAGE SENSORS

ElbowSense™ Underground Voltage SensorsLindsey underground voltage sensors consist of a high accuracy (0.5%) voltage sensor contained in familiar underground componentry. Instead of relying upon inaccurate capacitive test points, the precision resistive voltage divider provides an AC voltage output proportional to phase-to-ground voltage. All models provide excellent harmonic response, flat through the 20th harmonic.

Ordering Table

Part Number Sequence 95AB/0FHL

Where:

Code Descriptions Options

A Sensor Type

B Voltage Class

F Voltage Divider Ratio

H Connector

L Cable Length

3=200A Loadbreak Elbow sensor4=200A Deadbreak T-body sensor(15kV only)5=600A Voltage plug sensor

2= 15kV, 95kV BIL3 = 25kV, 125kV BIL4 = 34.5kV, 150kV BIL (available with 600A voltage plug option only)

1=1400:12=2200:13=3300:15= 60:16=120:17=166:1X=Special

1=2 contact socket (for padmount)2=cast-in cable (for vault/submersible)

Example: 9542/0111 is a 15kV class, 200A deadbreak T-body sensor with a 1400:1 ratio output (0 – 5VAC nominal for a 12.0kV system) with connector and 10 foot cable suitable for padmount application

Cable Length = “L”x10 feet

•

•

•

Lindsey ElbowSense 200A voltage sensors are available at 15kV in IEEE 386-type elbow and T-body connectors, and at 25kV in elbow connectors for simple, fast, and flexible installation. Lindsey 200A class sensors are suitable for padmount and metal clad applications.

Lindsey ElbowSense 600A voltage plug sensors fit standard 600A T-body connectors. These stainless steel sensors are suitable for pad mount, metal clad, and submersible applications. Sensors are available in 15, 25, and 35kV classes.

All sensors are provided with a watertight 10 foot (3m) cable.

Lindsey 200A Elbow Sensor

Lindsey 600A Plug Sensor

Lindsey 200A T-Body Sensor


UNDERGROUND CURRENT SENSORS

ElbowSense™ Underground Voltage Sensors Underground current sensors (ring and split-core CTs)ElbowSense™ Current SensorsLindsey 600V ElbowSense current sensors are specially designed for use with 200A and 600A underground elbow connectors. Both sensors feature a 3.125” (79mm) inside diameter.

• The Lindsey ElbowSense ring-style current sensor iswatertight and suitable for use in pad-mad, metal enclosed,and submersible vault applications. It offers very high accuracy(+/- 1%), no phase shift, and excellent harmonic response (flatthrough the 20th harmonic).

• The Lindsey ElbowSense split-core sensor provides additionalinstallation flexibility and is suitable for use in padmount andmetalclad applications. The split-core sensor is high accuracy(1%) and has no phase shift. The split-core sensor is notrecommended for harmonic sensing applications.

• All sensors are provided with a watertight 10 foot (3m) cable.

Ordering InformationPart Number Sequence 95A0/D01LWhere:

Code Descriptions Options

A Sensor Type


L Cable Length

Example: 9520/1021 is a split-core current sensor, 600A:10V ratio, with 10 foot (3m) cast-in cable.

1=ElbowSense ring current sensor2=ElbowSense split-ring current sensor

1 = 600A:10V (required when selecting split-core style)3 = 600A:5A4 = 600A:1A5 = 300A:5AX = Special

1 =10 ft (3m)2 = 20ft (6m)

SpecificationsAccuracy:

Phase Shift:

Operating Temperature Range:

Ratio:

Burden:

Max Open Circuit Voltage@ 600 Amps

Ring Style: 0.5%, Split-core Style: 1%

0 degrees nominal, +/- 0.5 degrees

-40° C to +65° C

600Amp : 10Volt 600Amp : 5Amp 600Amp : 1Amp 300Amp : 5Amp

10,000 Ohms, MIN. 0.9 Ohms, MAX. 22.5 Ohms, MAX. 0.22 Ohms, MAX.

10 14.5 88 8


UNDERGROUND POWER SUPPLY

Underground Power SupplyWhen automating legacy pad-mount or underground switchgear without auxiliary power availability, Lindsey’s patented* underground power supply installs quickly and easily to provide a self-contained source of DC power for meters, radios, and controls. Continuous power back-up is provided via an integral 5.2 A-Hour lithium ion battery.The Lindsey underground power supply uses a split-core CT to generate DC energy to power control and communication systems. Excess power is automatically routed to charge a built-in 12V, 5 Amp-hour battery. In the event of loss of input power, the battery provides continuous power to the connected devices.

Method of OperationThe CT harvests power from any non-magnetically shielded phase of a 200A/600A underground cable system. The power supply harvests about 1A at 12VDC for 100A of line current (4A output maximum). If the amount of power required by the connected control/communication equipment exceeds the power produced by the harvesting circuit, the balance is drawn from the battery. If more power is produced by the harvesting circuit than needed, the excess is used to charge the battery. Additional CTs are available to lower the minimum current required. Consult factory for more information.

Average line current needed to operate the power supply over a 24 hour period is:

Required Average Daily Line Current = (DC Current *66) + 27 AmpsNote that a minimum of 27A is required for chargingto occur.

Example: Communications and control equipment that draws a total of 700mA at 12VDC is connected to the underground power supply.

Required Average Daily Line Current = (0.7 *66) + 27 = 72A

Specifications

*US Patent 7,633,262 and other Patents Pending

DC Output voltage: 12VDC nominal, 14VDC max

DC Output current: 4.0 Amax

Battery: 12VDC, 5.2 A-Hour

Operating temperature: -30C to 60C (-20F to 140F)

Power supply/CT weight: 6.8kg (15lbs)

Dimensions: 240mm L x 195mm H x 120mm

H (9.5” L x 7.625” D x 4.625” H)

Mount: Magnetic

current and voltage sensors and accessories for smart grid

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