Cooper Power Systems VCS-1M Manuale utente

Type VCS-1M Single-Phase Vacuum Capacitor Switch

Installation and Operation Instructions

Vacuum Switches Service Information

February, 2013 • Supersedes 10/08

Figure 1.

Type VCS-1M single-phase vacuum capacitor switch.

S260-15-4

Safety Information........................................................ 2

Safety Instructions..................................................... 2

Hazard Statement Definitions .................................... 2

Product Information ..................................................... 3

Introduction ............................................................... 3

Acceptance and Initial Inspection .............................. 3

Handling and Storage................................................ 3

Standards ................................................................. 3

Description................................................................ 3

Ratings and Specifications.......................................... 4

Check Switch Ratings Prior to Installation ................ 4

Installation Procedure.................................................. 5

Check-Out Procedure ............................................... 5

High-Voltage Connections......................................... 5

Control Wiring ........................................................... 5

Wiring Diagrams........................................................ 6

Switch Operation ...................................................... 8

Electrical Operation ................................................ 8

Manual Hotstick Operation .................................... 8

Dimensions ................................................................ 9

Service Information .................................................. 10

Service Requirements............................................. 10

Frequency of Inspection ........................................ 10

High-Potential Withstand Testing............................ 10

Inspection of VCS-1M Module ............................... 10

Replacement Parts................................................. 10

Factory-Authorized Service Center ........................ 10

Contents

VCS-1M Single-Phase Vacuum Capacitor Switch Installation and Operation Instructions

The instructions in this manual are not intended as a

sub stitute 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:

nIs thoroughly familiar with these instructions.

nIs trained in industry-accepted high- and low-voltage

safe operating practices and procedures.

nIs trained and authorized to energize, de-energize, clear,

and ground power distribution equipment.

nIs trained in the care and use of protective equipment

such as flash clothing, safety glasses, face shield, hard

hat, rubber gloves, clampstick, hotstick, etc.

Following is important safety information. For safe

installation and operation of this equipment, be sure to

read and understand all cautions and warnings.

Safety Instructions

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.

DANGER:

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.

G103.3

WARNING:

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. G101.0

WARNING:

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. G102.1

WARNING:

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. G122.3

SAFETY FOR LIFE

Cooper Power Systems products meet or exceed all applicable industry standards relating to product safety. We actively

promote safe practices in the use and maintenance of our products through our service literature, instructional training

programs, and the continuous efforts of all Cooper Power Systems employees involved in product design, manufacture,

marketing and service.

We strongly urge that you always follow all locally approved safety procedures and safety instructions when working

around high-voltage lines and equipment and support our “Safety For Life” mission.

SAFETY

FOR LIFE

SAFETY

FOR LIFE

SAFETY INFORMATION

This manual may contain four types of hazard

statements:

DANGER:

Indicates a hazardous situation which, if not

avoided, will result in death or serious injury.

WARNING:

Indicates a hazardous situation which, if not

avoided, could result In death or serious injury.

CAUTION:

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.

Hazard Statement Definitions

SAFETY

FOR LIFE

S260-15-4

Introduction

Service Information S260-15-4 provides installation,

operation, and service instructions for Type VCS-1M

capacitor switches.

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 can not cover all details or variations

in the equipment, procedures, or processes described

nor provide directions for meeting every possible contin-

gency during installation, operation, or maintenance. For

additional information, please contact your Cooper Power

Systems representative.

Acceptance and Initial Inspection

Each switch is completely assembled, tested, inspected,

and adjusted at the factory. It is in good condition when

accepted by the carrier for shipment. Upon receipt, inspect

the switch thoroughly for damage and loss of parts incurred

during shipment. If damage or loss of parts is discovered,

file a claim with the carrier immediately.

Handling and Storage

Be careful during handling and storage of the switch to

minimize the possibility of damage. If the switch is to be

stored for any length of time prior to installation, provide a

clean, dry storage area.

Standards

Cooper Power System switches are designed and tested

in accordance with IEEE Std C37.66™-2005 standard.

Quality Standards

ISO 9001 Certified Quality Management System

Description

The Type VCS-1M Vacuum Capacitor Switch is a single-

phase, motor-operated vacuum switch that includes close

and latch capability for either electrical or manual opera-

tion. 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 safe capacitor switch. The VCS-1M

switch has a single solid polymer bushing and is suitable

for operation through a temperature range of -40 °C to

+65°C.

PRODUCT INFORMATION

VCS-1M Single-Phase Vacuum Capacitor Switch Installation and Operation Instructions

Check Switch Ratings Prior to

Installation

The 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.

Tables 1–4 list the ratings and specifications for the VCS-

1M switch.

All ratings meet or exceed values in IEEE Std C37.66™-

2005 standard for a distribution class switch, where

applicable.

RATINGS AND SPECIFICATIONS

TABLE 4

Current Ratings

Rated Asymmetrical Making Current ....... 9000 A

Rated Continuous Current ................ 200 A

Load Interrupting Ability (Inductive)

10 to 100% Power Factor ............. 200 A

Capacitive Current (Max.) ................. 200 A

Short-Time Current

Momentary Asymmetric (10 cycles) ..... 9000 A

Symmetrical (0.5 second) ............. 6000 A

Symmetric (1 second) ................ 4500 A

Rated High Frequency Peak

Transient Making Current ............ 6000 A

Rated Transient Inrush Frequency ...... 6000 Hz

Duty Cycle

Operations at 40 A ..................... 400

Operations at 100 A .................... 400

Operations at 200 A ....................... 400

TABLE 1

Voltage Ratings

Maximum Voltage,

solidly grounded capacitor banks,

phase-to-ground voltage ............... 15.5 kV

Maximum Voltage,

ungrounded capacitor banks,

phase-to-phase voltage ................ 13.0 kV

Basic Insulation Level (BIL)

line-to-ground ........................ 125 kV

Basic Insulation Level (BIL)

open contact ......................... 95 kV

Max. RIV @ 9.4 kV ...................... 100.0 µV

60 Hz Withstand

dry, 1 minute ........................... 50 kV

wet, 10 seconds ........................ 45 kV

TABLE 3

Electrical Specifications

Operating Voltage, Nominal, 120 V ac

Operating Voltage Range .............. 107–127 Vac

Current (nominal, ac) ....................... 1.4 A

Motor run time—Opening (typical) ........... 2.3 sec

Motor run time—Closing (typical) ............ 1.8 sec

Accessory Plugs

Catalog Number Cable Range Max.Wire Size

Number of Pins O.D. AWG

KA48NR 5 11–14 mm 12

(0.437–0.562 in.)

KA98NR 6 13–16 mm 16

(0.500-0.625 in.)

TABLE 5

Control Wiring Specifications

TABLE 2

General Specifications

Mass (Weight) [kg (lb)] ...................... 12 (26)

Operating Temperature Range ....... -40 °C to +65 °C

Rated Frequency (Hz) ........................ 50/60

Mechanical Operations

(close/open without maintenance) ............ 30,000

SAFETY

FOR LIFE

S260-15-4

Check-out Procedure

1. Check data plate. Make sure that ratings on the data

plate are correct for the planned installation.

2. Test mechanical operation. Close and open the

switch contacts manually using the yellow operating

handle. Confirm that the contacts have closed and

opened by listening for the sound of operation or

by a continuity check between the switch terminals.

Transport unit with contacts in the closed position.

3. Perform high-potential withstand tests. Prior to

installing the VCS-1M Switch, perform high-potential

withstand tests. Refer to the SERVICE INFORMATION

section for high-potential withstand test procedures.

4. Reorient switch terminals if required for

installation. Loosen the head-to-tank mounting

fasteners only if it is necessary to reorient the position

of the switch terminals to make high-voltage line

connections. Do not position the manual operating

handle over the pole-mounting bracket. After reorienting

the terminals, immediately retorque the head-to-

tank mounting fasteners in an alternating pattern to

13–20 Nm (10–15 ft•lbs) to prevent dust, dirt, or other

contaminants from entering the unit.

5. Install the switch. Follow locally approved installation

procedures. Mounting hardware is available for pole

mounting as an accessory.

High-Voltage Connections

1. Ground the switch. Make the ground connection to

the ground connector located on the switch as shown in

Figure 6. Do not rely on a ground connection to the tank.

2. Reorient bushing terminals if required for installation.

The bushing terminals are factory-torqued to assure

proper continuous current requirements and should

not be adjusted or rotated without using the following

procedure. Should adjustment be required, maintain

the position of the jam nut and loosen the terminal.

Next, realign the terminal and jam nut to the desired

orientation. Then, while maintaining the jam nut, tighten

the terminal and retorque to 12–14 Nm (9–10 ft•lbs).

3. 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.

Control Wiring

Connections to the actuating mechanism are made through

the standard five-pin (or optional six-pin) receptacle on the

head casting.

Mating plugs for the receptacle must be ordered sepa-

rately. Maximum cable and wire sizes accommodated by

the plugs are indicated in Table 5.

Pin orientation diagrams for the accessory receptacles are

shown in Figure 2.

Three-Wire Control

Remote control of the VCS-1M switch is supplied by a

single-pole, double-throw switch (three-wire control) sup-

plied by the customer. Any manual switch, relay contact,

time switch, voltage-, current- or photo-electric-controlled

switch, or similar device can be used, provided the control

circuit is energized for a minimum of 3 seconds (at -40 °)

for each operation. A connection diagram for a standard

three-wire control is shown in Figure 3.

Two-Wire Control Accessory

The control can also be operated by an SPST device (two-

wire control), applicable voltage 120 Vac only. A factory-

installed SPDT relay accessory is required for two-wire

control operation. A connection diagram for a two-wire

control is shown in Figure 3.

Holding Switch Accessory

If the controlling switch is energized for less than the

required time, a factory-installed holding switch accessory

is required. However, the control circuit must be ener-

gized for at least one second for each operation to ensure

operation of the holding switch. A connection diagram for

a two- or three-wire control with holding switch is shown

in Figure 3.

INSTALLATION PROCEDURE

KEY

5-pin

Receptacle

6-pin

Receptacle

Figure 2.

Receptacle pin orientation.

WARNING: 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.

G102.1

CAUTION: Personal Injury. Sheds on epoxy

encapsulation have sharp edges. Wear protective

gloves when handling the unit. Failure to do so can result

in cuts and abrasions. T258.1

WARNING: Hazardous Voltage. Solidly ground all

equipment. Failure to comply can result in death, severe

personal injury, and equipment damage. T223.2

VCS-1M Single-Phase Vacuum Capacitor Switch Installation and Operation Instructions

Wiring Diagrams

Schematic diagrams of switch actuators wired for two- and

three-wire controls are shown in Figure 3. Accessories are

shown with dashed lines.

Three-Wire Control

with Auxiliary Switch Accessory

Three-Wire Control with Holding Switch

and Auxiliary Switch Accessories

Two-Wire Control

with Auxiliary Switch Accessory

Control

Voltage

SEL

ADC B E

Relay

Coil

•

SPDT

Relay

•

Control

Voltage

Two-Wire Control with Holding Switch

and Auxiliary Switch Accessories

Control

Voltage

SEL

ADC B E

Relay

Coil

•

SPDT

Relay

•

Control

Voltage

••

•

Control

Voltage

SEL

ABC D E

OpenClose

Control

Voltage

SEL

ABC D E

•

OpenClose

•

Hold

•

Hold

Figure 3.

Typical connection diagrams (switch shown in OPEN position).

SAFETY

FOR LIFE

S260-15-4

Wiring Table

A wiring table for various combinations of accessories is

shown in Table 6.

M: Motor Common

SS: Selector Switch

NC: Normally Closed

NO : Normally Open

HS: Holding Switch

Aux: Auxiliary Switch

Com: Common

R-B: Relay Contact B

R-A: Relay Contact A

R: SPDT Relay

TABLE 6

Wiring Table

Receptacle Pin Description Applicable Receptacle

Voltage

A B C D E F

Unit Description

Standard 3-wire control – M SS-NC SS-NO – – 120, 240 Vac 5-pin

12, 24 Vdc

3-wire control, Holding Switch HS-NO M SS-NC SS-NO – – 120, 240 Vac 5-pin

12, 24 Vdc

3-wire control, Aux-Com M SS-NC SS-NO Aux-NO Aux-NC 120, 240 Vac 6-pin

SPDT Aux Switch 12, 24 Vdc

3-wire control, Holding Switch, Aux-Com M SS-NC SS-NO Aux-NO Aux-NC 120, 240 Vac 6-pin

SPDT Aux Switch 12, 24 Vdc

3-wire control, Surge Arrestor – M SS-NC SS-NO – – 120 Vac 5-pin

12, 24 Vdc

3-wire control, Holding Switch, HS-NO M SS-NC SS-NO – – 120 Vac 5-pin

Surge Arrestor 12, 24 Vdc

3-wire control, SPDT Aux, Aux-Com M SS-NC SS-NO Aux-NO Aux-NC 120 Vac 6-pin

Surge Arrestor 12, 24 Vdc

3-wire control, Holding Switch, Aux-Com M SS-NC SS-NO Aux-NO Aux-NC 120 Vac 6-pin

SPDT Aux Switch, Surge Arrestor 12, 24 Vdc

Standard 2-wire control R-B M R R-A – – 120 Vac only 5-pin

2-wire control, Holding Switch R-B M HS-NO R-A – – 120 Vac only 5-pin

2-wire control, SPDT Aux Switch R-B M Aux-Com R-A Aux-NO Aux-NC 120 Vac only 6-pin

2-wire control, Holding Switch, R-B M HS-NO R-A Aux-Com Aux-NO 120 Vac only 6-pin

SPST Aux Switch (b contact) R

2-wire control, SPDT Relay, R-B M R R-A – – 120 Vac only 5-pin

Surge Arrestor

2-wire control, Holding Switch, R-B M HS-NO R-A – – 120 Vac only 5-pin

Surge Arrestor R

2-wire control, SPDT Aux Switch, R-B M Aux-Com R-A Aux-NO Aux-NC 120 Vac only 6-pin

Surge Arrestor R

2-wire control, Holding Switch, R-B M HS-NO R-A Aux-Com Aux-NO 120 Vac only 6-pin

SPST Aux Switch (b contact), R

Surge Arrestor

VCS-1M Single-Phase Vacuum Capacitor Switch Installation and Operation Instructions

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 for electrical connections and operating

time.

Note: Main contacts and auxiliary switch operate before the

motor has completed its operation.

Manual Hotstick Operation

The switch may be manually opened and closed by using

a hotstick to operate the yellow manual operating handle

under the sleet hood as shown in Figures 4 and 5.

To open the switch contacts, insert the hotstick tip into the

eyelet of the manual operating handle and pull downward

to the OPEN position. See Figure 4.

To close the switch contacts, place the hotstick tip against

the manual operating handle and push upward to the

CLOSE position. See Figure 5.

Incorrect placement of the hotstick during closing (placing

the hotstick hook into the eyelet) causes the hook to catch

on the sleet hood before the complete motion to fully close

the switch can be accomplished. This incorrect closing

method can also cause damage to the sleet hood.

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.

WARNING: 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. G116.0

WARNING: Hazardous Voltage. Always use a

hotstick when working with this equipment. Failure

to do so could result in contact with high voltage, which

will cause death or severe personal injury. G108.1

IMPORTANT: If the switch does not respond to an elec-

trical operating signal, it may be that the main switch con-

tacts are not synchronized with the electrical control. For

example, if the switch is manually opened, an electrical

OPEN signal must be transmitted to bring the control into

synchronism with the switch contacts before an electrical

CLOSE signal will close the switch. The converse is also

true.

Figure 5.

Correct placement of the hotstick to close the

switch.

To close, place hotstick tip

against manual operating

handle and push upward.

Figure 4.

Correct placement of the hotstick to open the

switch.

To open, insert hotstick

tip into eyelet of manual

operating handle and

pull downward.

SWITCH OPERATION

IMPORTANT: The hotstick tip must be placed in the

groove under the eyelet of the manual operating handle

when closing the switch.

SAFETY

FOR LIFE

S260-15-4

DIMENSIONS

RECEPTACLE

MOUNTING

HOLE FOR

16 (0.625)

BOLT

205

(8)

(2)

(2.75)

181

(7)

(1.5)

CLOSED

106

(4.25)

121

(4.75)

147

(5.75)

212

(8.25)

GROUND

CONNECTOR

#8 SOLID TO

2/0 AWG STRANDED

CABLE RANGE

291

(11.5)

666

(26.25)

(1.25)

32 (1.25)

Hole [4]

11 (.5)

140

(5.5)

314 (12.25)

166

(6.5) A

BUSHING

CONNECTOR

#8 SOLID TO

2/0 AWG STRANDED

CABLE RANGE

Figure 6.

Dimensions of Type VCS-1M switch.

Note: All dimensions are mm (inches). Dimensions shown are approximate.

Creepage

Terminal to Terminal 521 mm (20.25 in)

Terminal to Ground 641 mm (25.0 in)

Terminal Option Dimension A

Eyebolt 50 mm (2 in)

Flat Pad, 1-Hole 75 mm (3 in)

VCS-1M Single-Phase Vacuum Capacitor Switch Installation and Operation Instructions

Service Requirements

The Type VCS-1M switch has been designed with a

minimum mechanical life of 30,000 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.

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.

High-Potential Withstand Testing

Use the following procedures to perform high-potential

withstand tests. The VCS-1M capacitor switch should be

tested at 26 kV ac.

Closed Contacts Test

1. Close the switch contacts.

2. Ground the switch.

3. Apply proper test voltage to one of the bushing

terminals. The switch should withstand the test voltage

for 60 seconds.

Open Contacts Test

1. Open the switch contacts.

2. Ground the switch.

3. Ground the bushing on one side of the switch.

4. Apply proper test voltage to the ungrounded bushing.

The switch should withstand the test voltage for 60

seconds.

5. Reverse the test and ground connections to the

bushings.

6. Apply proper test voltage to the ungrounded bushing.

The switch should withstand the voltage for 60

seconds.

Withstand Test Results

The high-potential withstand tests provide information on

the dielectric condition of the switch.

If the switch passes the closed-contacts test and fails

the open-contacts test, the cause is likely to be in the

interrupter assembly.

If the switch fails the closed contacts test, the cause is

likely to be a diminished electrical clearance or insulation

that has been damaged. Causes of insulation damage

include failure, abuse, and overvoltage surges.

Inspection of VCS-1M Module

If the VCS-1M module was exposed to an external

flashover, an inspection process is recommended to

assure proper operation of the switch. Should the VCS-

1M exhibit external flashover attributes (carbon tracking

or discoloration), the following procedure is recommended

to restore the encapsulation back to its original condition:

1. Remove device from service.

2. Inspect module for damage to the terminals. Remove

any damaged terminals and replace.

3. Inspect module for damage to the module conductor

rods. If there is damage to the module rods, the

module must be replaced.

4. Verify through careful inspection that there is no

damage to the housing or head casting that could

inhibit proper operation.

5. Clean the damaged module with isopropyl alcohol

and a scratch-free, nylon scouring pad to remove any

carbon deposit.

6. Confirm the dielectric strength of the module by

performing high-potential withstand testing. Confirm

both phase-to-ground and phase-to-phase conditions.

See the High-Potential Withstand Testing section of

this manual.

Replacement Parts

Replacement parts kits for Cooper Power Systems switches

are available through the factory Service Department.

Only factory-authorized parts are to be used. To order

replacement parts, refer to Parts Guide S260-01 through

S280-01 for catalog numbers. Contact your Cooper Power

Systems representative for additional information and

ordering procedures.

Factory-Authorized Service

Centers

Factory-authorized service centers are located throughout

the continental United States to provide maintenance,

repair and testing services for Cooper Power Systems

Distribution Switchgear products. Refer to Service Centers

Brochure, B100-04009 for the Authorized Service Center

closest to your location. For further information, contact

your Cooper Power Systems representative.

SERVICE INFORMATION

CAUTION: Radiation. At voltages up to the spec-

ified test voltages, the radiation emitted by the

vacuum interrupter is negligible. However, above these

voltages, radiation injurious to personnel can be emitted.

See Service Information S280-90-1, Vacuum Interrupter

Withstand Test Voltage Ratings Information for further

information. G109.2

WARNING: Hazardous Voltage. The switchgear

(apparatus and control) and high-voltage trans-

former must be in a test cage or similar protected area

to prevent accidental contact with the high-voltage parts.

Solidly ground all equipment. Failure to comply can result

in death, severe personal injury, and equipment damage.

T221.5

Indice

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