Hubbell UltraVacLT User manual

Trinetics

®

UltraVacLT

®

Hubbell has a policy of continuous product improvement. Please visit hubbellpowersystems.com to conﬁrm current design speciﬁcations.

Single Phase Vacuum Capacitor Switch

Installation and Operation Instructions

UltraVacLT

®

15kV

95kV or 125kV BIL

UltraVacLT

®

27kV

125kV or 150kV BIL

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®

Installation and Operation | www.trinetics.com

DISCLAIMER OF WARRANTIES AND LIMITATION

OF LIABILITY

The information, recommendations, descriptions and safety notations in this document are based on

Hubbell Power Systems, Inc.'s (HPS) experience and judgment and may not cover all contingencies. If

further information is required, an HPS sales ofﬁce should be consulted. Sale of the product shown in

this literature is subject to the terms and conditions outlined in appropriate HPS selling policies or other

contractual agreement between Hubbell Power Systems and the purchaser.

THERE ARE NO UNDERSTANDINGS, AGREEMENTS, WARRANTIES, EXPRESSED OR IMPLIED,

INCLUDING WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY, OTHER

THAN THOSE SPECIFICALLY SET OUT IN ANY EXISTING CONTRACT BETWEEN THE PARTIES. ANY

SUCH CONTRACT STATES THE ENTIRE OBLIGATION OF HUBBELL POWER SYSTEMS. THE CONTENTS

OF THIS DOCUMENT SHALL NOT BECOME PART OF OR MODIFY ANY CONTRACT BETWEEN THE

PARTIES.

IN NO EVENT AND UNDER NO CIRCUMSTANCE SHALL HPS BE RESPONSIBLE TO THE PURCHASER

OR USER OF THIS DOCUMENT OR THE PRODUCT DESCRIBED HEREIN OR ANY OTHER PERSON

IN CONTRACT, IN TORT (INCLUDING NEGLIGENCE OR WRONGFUL DEATH), STRICT LIABILITY

OR OTHERWISE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR

LOSSES WHATSOEVER, INCLUDING BUT NOT LIMITED TO DAMAGE OR LOSS OF USE OF PRODUCT,

EQUIPMENT, PLANT OR POWER SYSTEM, COST OF CAPITAL, LOSS OF POWER, ADDITIONAL

EXPENSES IN THE USE OF EXISTING POWER FACILITIES, OR CLAIMS AGAINST THE PURCHASER OR

USER BY THIRD PARTIES RESULTING FROM THE USE OF THE INFORMATION, RECOMMENDATIONS

AND DESCRIPTIONS CONTAINED HEREIN. THE INFORMATION CONTAINED IN THIS MANUAL IS

SUBJECT TO CHANGE WITHOUT NOTICE, USER SHOULD CONSULT THE HUBBELL POWER SYSTEMS

WEBSITE FOR THE MOST CURRENT VERSION.

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Table of Contents

Safety Information

Safety Information ..........................................................................................4

Product Information

Introduction .......................................................................................................5

Acceptance and Initial Inspection ...........................................................5

Handling and Storage ...................................................................................5

Standards ............................................................................................................5

Quality Standards ...........................................................................................5

Description of Operation .............................................................................5

Ratings and Speciﬁcations

Check Switch Ratings Before Installation ...........................................6

Ratings .................................................................................................................6

Installation Procedure

Check-Out Procedure ...................................................................................7

High Voltage Connections ..........................................................................8

Control Wiring ..................................................................................................9

Remote Control ................................................................................................9

Wiring Diagrams ........................................................................................ 10,11

Dimensions

Dimensions ........................................................................................................12

Switch Operation

Electrical Operation ..................................................................................... 13

Manual Hotstick Operation ....................................................................... 13

Contact Position Indicator ........................................................................ 14

Service Information

Service Requirements ................................................................................. 14

Frequency of Inspection ............................................................................ 14

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Safety Information

The instructions in this manual are not intended as a substitute for proper training or adequate experience

in the safe operation of the equipment described. Only competent technicians who are familiar with

this equipment should install, operate, and service it. A competent technician has these qualiﬁcations:

• Is thoroughly familiar with these instructions.

• Is trained in industry-accepted high and low-voltage safe operating practices and procedures.

• Is trained and authorized to energize, de-energize, clear, and ground power distribution equipment,

and is trained in the care and use of personal protective equipment such as ﬂash clothing, safety

glasses, face shield, hard hat, rubber gloves, clampstick, hotstick, etc.

The following is important safety information. For safe installation and operation of this equipment, be

sure to read and understand all cautions and warnings before installing or operating.

This manual may contain four types of hazard statements:

Indicates a hazardous situation which, if not avoided, will result in death or serious injury.

Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

CAUTION

Indicates a hazardous situation which, if not avoided, could result in equipment damage only.

The following are general caution and warning statements that apply to this equipment. Additional

statements, related to speciﬁc tasks and procedures, are located throughout the manual.

Hazardous voltage. Contact with hazardous voltage will cause death or severe personal injury.

Follow all locally approved safety procedures when working around high- and low-voltage lines and

equipment.

Before installing, operating, maintaining, or testing this equipment, carefully read and understand

the contents of this manual. Improper operation, handling or maintenance can result in death,

severe personal injury, and equipment damage.

This equipment is not intended to protect human life. Follow all locally approved procedures and

safety practices when installing or operating this equipment. Failure to comply can result in death,

severe personal injury and equipment damage.

Power distribution and transmission equipment must be properly selected for the intended

application. It must be installed and serviced by competent personnel who have been trained

and understand proper safety procedures. These instructions are written for such personnel and

are not a substitute for adequate training and experience in safety procedures. Failure to properly

select, install or maintain power distribution and transmission equipment can result in death, severe

personal injury, and equipment damage.

Switch housing is composed of HDPE which is not self extinguishing and may continue to burn if

ignited. Consideration of ﬂammability requirements for application should be validated prior to

installation. Failure to comply can result in death, severe personal injury, and equipment damage.

!

WARNING

!

WARNING

!

CAUTION

!

WARNING

!

WARNING

!

WARNING

DANGER

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Product Information

Introduction

This service information document provides installation instructions, operation information, and

maintenance information for UltraVacLT

®

Vacuum Capacitor Switches.

The information contained in this manual is organized into the following major categories: Safety

Information, Product Information, Ratings and Speciﬁcations, Installation Procedure, Dimensions,

Switch Operation, and Service Information. Refer to the table of contents for page numbers.

Read this manual ﬁrst

Read and understand the contents of this manual and follow all locally approved procedures and

safety practices before installing or operating this equipment.

Additional information

These instructions cannot cover all details or variations in the equipment, procedures, or processes

described nor provide directions for meeting every possible contingency during installation, operation,

or maintenance.

When additional information is desired to satisfy a problem not covered sufﬁciently for the user's

purpose, please contact your Hubbell Power Systems sales representative.

Acceptance and initial inspection

Each capacitor switch is completely assembled, inspected, tested, and adjusted at the factory. It is

in good condition when accepted by the carrier for shipment. Upon receipt of a capacitor switch,

inspect the capacitor switch thoroughly for damage and loss of parts incurred during shipment. If

damage or loss is discovered, ﬁle a claim with the carrier immediately.

Handling and storage

If the capacitor switch is to be stored for an appreciable time before installation, provide a clean, dry

storage area.

Store the capacitor switch so as to minimize the possibility of mechanical damage.

Maximum temperature of product during storage should never exceed 70°C. Care should be taken

to ensure storage location and packaging is appropriate. If stored outside in original cartons and

temperatures above 45°C are expected, shipping wrap should be removed and handle knock-outs

should be opened to ensure airﬂow into carton.

Standards

UltraVacLT

®

Vacuum Capacitor Switches are designed and tested in accordance with IEEE Std

C37.66™-2005 standard.

Quality standards

UltraVacLT

®

Vacuum Capacitor Switches are produced under an ISO 9001 Certiﬁed Quality

Management System.

Description of operation

The UltraVacLT

®

Vacuum Capacitor Switch is a single-phase, solenoid-operated vacuum switch. The

solid polymer insulation system does not rely on gas, foam, or liquid dielectrics. Highly resistant to

ozone, oxygen, moisture, contamination, and ultraviolet light, it is an environmentally friendly capacitor

switch. The UltraVacLT

®

Vacuum Capacitor Switch has a polymer bushing and is suitable for operation

through a temperature range of -40°C to +60°C.

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Table 1 - Ratings and Speciﬁcations

Model UltraVacLT

®

15 UltraVacLT

®

27

Rated Maximum Voltage, 50/60Hz for ungrounded capacitor banks,

line-to-line, kV, RMS

17.8 27.6

Rated Maximum Voltage, 50/60Hz for grounded capacitor banks,

line-to-line, kV, RMS

26.8 41.5

Impulse Withstand Voltage, Line-to-ground, kV BIL

95 | 125 125 | 150

Impulse Withstand Voltage, Open gap, kV BIL

95 | 110 125 | 150

Power frequency withstand voltage, 60 Hz:

1 Minute Dry, kV

10 Seconds Wet, kV

50

45

60

50

Continuous Current, 50/60Hz, Amps

200 200

Capacitive Switching Current, 50/60Hz, Amps

200 200

Fault making peak current, Amps

15,000 15,000

Fault making current, symmetrical RMS, Amps

6,000 6,000

Short time withstand current 1.0 s, symmetrical RMS, Amps

6,000 6,000

High frequency peak

Transient making current, Amps

Transient in-rush frequency, Hz

12,000

6,000

12,000

6,000

Operating current rating

120VAC, Amps

240VAC, Amps

125VDC, Amps

9

4.5

9

4.5

9

Operating voltage range

120VAC, Volts

240VAC, Volts

125VDC, Volts

96 to 140

192 to 280

106 to 144

96 to 140

192 to 280

106 to 144

Nominal open/close time, ms

100 100

Creep distance,

terminal to terminal, inches / mm

terminal to ground, inches / mm

20.3 / 516

25 / 635

28.5 / 724

25 / 635

Weight, lbs / kg

20 / 9 22 / 10

Operating temperature range, deg F / deg C

-40 to +140 / -40 to +60 -40 to +140 / -40 to +60

Humidity %

100 100

Mechanical Operations

50,000 50,000

Restrike category per IEEE 37.66 standards, Class

C2 C2

Insulation Type

High Density Polyethylene High Density Polyethylene

Standards

ANSI/IEEE 37.66 ANSI/IEEE 37.66

Standard Terminal Type

Eye bolt clamps Eye bolt clamps

Ratings and Speciﬁcations

Check switch ratings before installation

The UltraVacLT

®

Vacuum Capacitor Switch must be applied within its speciﬁed ratings. Check data plate

ratings and compare with the system characteristics at the point of application prior to installation. Table

1 lists the ratings and speciﬁcations for the UltraVacLT

®

Vacuum Capacitor Switch.

Ratings

All ratings meet or exceed values in IEEE Std C37.66™-2005 standard for a distribution-class switch,

where applicable.

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Installation and Operation | www.trinetics.com

Installation Procedure

Hazardous voltage. Solidly ground all equipment. Failure to comply can result in death, severe

personal injury, and equipment damage.

This equipment is not intended to protect human life. Follow all locally approved procedures and

safety practices when installing or operating this equipment. Failure to comply can result in death,

severe personal injury and equipment damage.

Check-out procedure

1. Check data plate. Make sure that ratings on the data plate are correct for the planned installation.

2. Visually inspect the switch. Visually inspect the switch for any damage to bushing sheds, terminals,

mounting bracket, or trip handle.

3. Install the switch. Follow locally approved installation procedures.

4. Install system components. This equipment is not intended as a visual break disconnect. Air-breaking

isolating switches, usually fused cutouts, must be installed to provide a visible disconnect.

5. Adjust orientation. When mounting the switch in its ﬁnal location, the orientation of the side terminal

can be adjusted for best wire routing. This is done by rotating the body of the switch in the mounting

clamp ring. To make this adjustment, loosen the two (2) nuts on the clamp ring until the body of

the switch is free to rotate. Rotate the switch body to the desired orientation. Tighten the two (2)

nuts to 15ft-lbs to secure the switch and prevent additional rotation. The switch body can be rotated

approximately 275 degrees as shown below.

CAUTION

When adjusting the rotation position of the switch, do not locate the mounting bracket under the

manual handle/indicator as this will prevent proper operation of the switch.

Range of Rotation Grounding Connection Clamp Ring Nuts

!

WARNING

!

WARNING

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High-Voltage Connections

1. Ground the switch. Make the ground connection to the ground connector located on the mounting

bracket of the switch.

2. Make line connections. Connect the primary leads to the switch terminals. The universal clamp-type

terminals accommodate AWG No. 8 solid through 2/0 stranded conductor. Animal guards for terminal

connections are provided with each switch.

3. Torque speciﬁcation to terminals is 15 ft-lbs.

CAUTION

When connecting system line voltage to the UltraVacLT

®

Vacuum Capacitor Switch, wire leads must

be kept at least 6 inches away from the upper sheds area of the switch bushing. Failure to comply

with this precaution may result in improper operation of the capacitor switch. Refer to diagram

below.

Keep this area around switch

sheds completely free of all

line voltage wiring to prevent

improper operation

Keep this area around switch

sheds completely free of all

line voltage wiring to prevent

improper operation

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Installation and Operation | www.trinetics.com

Control Wiring

Electrical connections to the actuating mechanism are made through the receptacle in the bottom cover

plate of the switch. Mating plugs or cable assemblies for the receptacle must be ordered separately.

Pin orientation diagrams for the control receptacle are shown next to each available wiring conﬁguration

on the next pages.

Remote Control

Remote control of the UltraVacLT

®

Vacuum Capacitor Switch is accomplished by connecting the

customer's control device to the receptacle in the bottom cover plate of the switch. The control signal

must be applied between the CLOSE or OPEN pin and Neutral for at least 100 msec. It is recommended

the control signal be applied for 1 second +/- 100ms. Limit switches inside the switch will open the

control path to the solenoid at the correct time.

The CLOSE or OPEN signal must be removed from the corresponding path before the opposite

signal is applied or damage to the solenoid circuit will occur. Any manual switch, relay contact, time

switch, or similar device can be used, provided the control circuit is energized for a minimum of 100

ms for each operation.

The UltraVacLT

®

Vacuum Capacitor Switch is designed for use on distribution capacitor banks which

typically operate a few times a day. To provide optimum operating performance, the mechanism of

this switch is designed for intermittent duty operation. If performing functional testing of the switch;

either on a bench or in a complete capacitor bank system; repetitive CLOSE and OPEN operations

must be limited to a maximum of 20 operations in a 5 minute time period with the operations spaced

an equal time apart. After these test operations, the switch must be allowed to rest without further

electrical operations for a period of approximately 20 minutes. This will allow the components inside

the switch sufﬁcient time to cool and be ready for additional testing operations if desired.

If the UltraVacLT

®

Vacuum Capacitor Switch is used to switch distribution capacitors, a minimum 5

minute delay must be provided between any open operation and the subsequent close operation to

prevent damage to equipment or injury to personnel.

Connector receptacle

!

CAUTION

!

CAUTION

!

CAUTION

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Wiring Diagrams

Schematic of switch actuator circuits are shown in the following diagrams.

Option Code: X5

Option Code: W5

Option Code: A5

Option Code: B5

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Option Code: C6

Option Code: D7

Option Code: D8

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ULT15-095/ULT15-125

Mounting Bracket Details

ULT27-125/ULT27-150

Dimensions

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Switch Operation

Electrical Operation

The switch may be opened and closed electrically by applying rated control voltage to the proper

terminals of the actuator receptacle. Refer to the Installation Procedure section of this manual for electrical

connections and operating time.

CAUTION

UltraVacLT

®

Vacuum Capacitor Switches operating on 120 VAC or 125 VDC require 9 amps of current

per switch; 27 amps for a group of 3 switches. Switches operating on 240 VAC require 4.5 amps per

switch; 13.5 amps for a group of 3 switches. The voltage source must be of sufﬁcient volt-ampere

rating to provide these currents for the 100 millisecond time period that operating current is being

consumed. Insufﬁcient source capacity may result in malfunction of the switches and possible

damage to the internal circuitry.

Manual Hotstick Operation

Hazardous voltage. This device is not a substitute for a visible disconnect. Follow all locally

approved safety practices. Failure to follow proper safety practices can result in contact with high

voltage, which will cause death or severe personal injury.

The switch may be manually opened or closed by using a hotstick to operate the yellow manual operating

handle under the sleet hood as shown in ﬁgures below.

Hazardous voltage. Do not rely on the open position of the yellow operating handle; it does not

ensure that the line has been de-energized. Always establish a visible disconnect. Failure to follow

proper safety practices can result in contact with high voltage, which will cause death or severe

personal injury.

To open the switch contacts, insert the hotstick tip into the hotstick hole of the manual operating handle

and pull downward to the OPEN position.

To close the switch contacts, place the hotstick tip into the notch under the hotstick hole of the manual

operating handle and push upward to the CLOSED position.

Hotstick in place with switch closed Hotstick in place with switch open Hotstick in place to close switch

DANGER

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Installation and Operation | www.trinetics.com

Service Information

Service Requirements

The mechanical durability of the UltraVacLT

®

Vacuum Capacitor Switch was demonstrated by completing

a minimum of 50,000 mechanical operations. The switch requires no routine maintenance; however, the

switch should be inspected on a regular basis to check for physical damage and to verify operation. The

bottom cover of the unit should not be removed as there are no user serviceable parts inside.

Frequency of Inspection

Because these switches are applied under widely varying operation and climatic conditions, maintenance

intervals are best determined by the user based upon actual operating experience.

Hazardous voltage. If, during the inspection of the UltraVacLT

®

Vacuum Capacitor Switch, a dielectric

test is to be conducted, caution must be taken to insure appropriate clearances and/or guarding are

incorporated to protect personnel conducting the tests. Recommended ﬁeld dielectric test levels are

75% of the rated power frequency withstand level.

Radiation. At voltages up to the speciﬁed test voltages, the radiation emitted by the vacuum interrupter

is negligible. However, above these voltages, radiation injurious to personnel can be emitted.

Contact Position Indication

The yellow operating handle is also used as a contact position indicator. The switch is closed when the

operating handle is in the up position and is open when the operating handle is in the down position.

Contact position indicator switch closed Contact position indicator switch open

!

WARNING

!

CAUTION RADIATION

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Installation and Operation | www.trinetics.com

NOTES

__________________________________________________________________________________

Hubbell Power Systems, Inc.

N88 W13901 Main Street

Menomonee Falls, WI 53051

(262) 832-9600

www.hubbellpowersystems.com

TD_10_055_E33249104 Rev 0

Hubbell has a policy of continuous product improvement. Please visit hubbellpowersystems.com to conﬁrm current design speciﬁcations.

Hubbell UltraVacLT User manual

Hubbell UltraVacLT User manual

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