Siemens 81000 90H35 Manual de usuario

SIEMENS

Instructions

Installation

Operation

Maintenance

MVC

9028

Series

81000

7.2

Medium

Voltage

Vacuum

Contactors

Type

(

)

;

Type

(

7.2

)

(

Distribution

Voltage

2400

6900

VAC

;

Utilization

Voltage

2300

6600

VAC

)

Courtesy of NationalSwitchgear.com

Table

Contents

Table

Contents

Main

Contacts

Wear

Check

Vacuum

Loss

Check

Vacuum

Bottle

Replacement

Removing

Vacuum

Bottle

Installing

the

Replacement

Vacuum

Interrupter

Main

Coil

Replacement

Auxiliary

Contact

Block

Replacement

Fuse

Clip

Inspection

Terminals

and

Joints

Recommended

Torque

Values

Periodic

Cleaning

Maintenance

after

Fault

General

Inspection

Enclosures

Terminals

and

Internal

Conductors

Overload

Relays

Fuse

Holders

Fuses

Troubleshooing

Troubleshooting

Chart

Parts

(

)

Contactor

Part

Pictorials

(

7.2

)

Contactor

Part

Pictorials

Description

General

Contactor

Ratings

Description

Operation

Blown

Fuse

Trip

Mechanism

Mechanically

Latched

Contactors

Nomenclature

Receiving

and

Handling

Receiving

Inspection

Handling

Storage

Installation

Site

Preparation

and

Mounting

Electrical

Connections

Altitude

Setting

Latched

Contactors

Operation

Pre

Energization

Check

Operating

Data

Typical

Control

Circuit

Diagrams

Typical

Control

Circuit

Diagrams

Typical

Control

Circuit

Diagrams

Maintenance

Safety

Phase

Barrier

and

Dust

Cover

Removal

and

Installation

Blown

Fuse

Trip

Mechanism

NOTE

These

instructions

not

purport

cover

all

details

variations

equipment

nor

provide

for

every

possible

contingency

met

connection

with

installation

operation

maintenance

Should

further

information

desired

should

particular

problems

arise

which

are

not

covered

sufficiently

for

the

purchaser

’

purposes

the

matter

should

referred

the

local

Siemens

sales

office

The

contents

this

instruction

manual

shall

not

become

part

modify

any

prior

existing

agreement

commitment

relationship

The

sales

contract

contains

the

entire

obligation

Siemens

The

warranty

contained

the

contract

between

the

parties

the

sole

warranty

Siemens

Any

statement

contained

herein

not

create

new

warranties

modify

the

existing

warranty

Courtesy of NationalSwitchgear.com

Description

Page

structure

which

provides

mounting

for

the

power

fuses

con

trol

transformer

and

primary

fuses

and

drawout

attachments

Due

the

fact

that

arc

interruption

accomplished

com

pletely

within

the

vacuum

bottles

items

such

arc

chutes

blowout

coils

and

pole

plates

are

not

required

with

vacuum

contactors

Stationary

and

movable

power

contacts

are

cated

inside

the

vacuum

bottles

with

corrugated

stainless

steel

bellows

attached

the

movable

contacts

ensure

complete

seal

and

integrity

the

vacuum

bottle

Voltage

surge

suppressors

are

sometimes

furnished

the

controller

load

terminals

limit

transient

overvoltages

caused

multiple

reignitions

which

may

occur

due

the

use

vacuum

interrupters

For

application

guidelines

see

the

instruction

manual

for

Series

81000

Controllers

—

MVC

9018

General

Siemens

Type

vacuum

contactors

are

provided

for

use

Series

81000

medium

voltage

controllers

Type

contactors

provide

the

advantage

long

mechanical

and

electrical

life

with

low

maintenance

and

are

essentially

mune

adverse

atmospheric

environments

They

are

suitable

for

loads

all

types

including

three

phase

motors

transformers

capacitors

and

resistive

loads

The

overall

dimensions

the

vacuum

contactor

are

inches

(

457

)

wide

27.5

inches

(

699

)

high

23.87

inches

(

606

)

deep

The

vacuum

contactor

with

single

double

barrel

power

fuses

can

installed

Series

81000

Class

controllers

either

one

two

three

high

construction

The

Type

vacuum

contactor

consists

(

)

low

voltage

section

which

contains

the

main

coil

drive

and

auxiliary

contacts

;

(

)

medium

voltage

section

which

houses

the

vacuum

interrupter

bottles

and

(

)

support

Contactor

Ratings

Interrupting

Capacity

Enclosed

Continuous

Ampere

Rating

Maximum

Voltage

Rating

Impulse

Level

(

BIL

)

Contactor

Type

Fused

Class

Controller

(

MVA

)

Unfused

Contactor

(

)

2.3

4.6

200

2.3

350

4.0

400

4.6

5.0

360

6.6

7.2

310

Auxiliary

Contacts

Each

contactor

equipped

with

and

auxiliary

contacts

for

customer

use

These

contacts

are

rated

600

(

NEMA

Class

600

)

NOTE

drawout

contactors

and

contacts

are

available

for

customer

use

Transformer

Loads

Phase

Horsepower

Rating

Utilization

Voltage

Maximum

Motor

Fuse

Rating

2300

4000

4600

6600

Maximum

Transf

Fuse

Rating

Contactor

Type

Maximum

Phase

kVA

Distribution

Voltage

Syn

Motors

Syn

Motors

Syn

Motors

Ind

Motors

2400

4800

6900

4160

0.8

1.0

0.8

1.0

0.8

1.0

450

1500

2500 2500

1750

1500

2500

3000

2500

1500

200

1500

3500

4500

3500

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Description

Page

The

clearance

between

the

cup

(

3.3

)

and

the

nut

(

3.4

)

the

switching

position

allows

the

magnetic

drive

accelerate

during

opening

operations

compression

spring

(

4.7

)

positioned

between

the

drive

lever

(

3.1

)

and

the

vacuum

interrupter

(

4.1

)

Description

Operation

(

Refer

Figure

)

The

drive

lever

(

3.1

)

forms

angle

with

point

the

fulcrum

When

the

magnet

not

energized

the

lever

held

the

OFF

position

the

compression

springs

(

9.3

)

Thus

point

the

drive

lever

its

extreme

left

position

this

point

the

drive

lever

engages

with

the

cup

(

3.3

)

and

the

nut

(

3.4

)

the

vacuum

interrupter

This

holds

the

contacts

apart

(

the

OFF

position

)

against

the

atmospheric

pressure

When

the

magnet

coil

(

8.1

)

energized

the

armature

(

3.6

)

and

with

the

drive

lever

(

3.1

)

are

attracted

towards

the

magnet

core

(

8.2

)

against

the

reaction

the

two

compression

springs

(

9.3

)

Point

the

drive

lever

therefore

moves

the

far

right

position

The

nut

(

3.4

)

the

vacuum

interrupter

(

4.1

)

thus

released

that

the

atmospheric

pressure

can

press

the

moving

contact

against

the

fixed

contact

The

drive

mechanism

constructed

that

the

nut

(

3.4

)

never

comes

into

contact

with

the

drive

lever

(

3.1

)

when

the

position

This

ensures

that

the

switching

position

always

reached

definitely

and

completely

Blown

Fuse

Trip

Mechanism

Contactors

can

supplied

with

anti

single

phase

trip

mechanism

which

offers

protection

from

single

phasing

due

blown

power

fuse

Fused

contactors

equipped

with

the

blown

fuse

trip

mechanism

are

pre

adjusted

the

factory

that

the

opening

one

power

fuses

results

energizing

the

contactor

thus

interrupting

current

the

load

When

power

fuse

blows

plunger

extends

from

the

load

end

the

fuse

which

rotates

the

spring

loaded

trip

bar

and

releases

pre

compressed

micro

switch

the

side

the

contactor

contact

the

micro

switch

opens

this

time

and

energizes

the

contactor

magnet

coil

Figure

Operating

Components

Vacuum

Contactor

Courtesy of NationalSwitchgear.com

Description

Page

energy

source

provides

reliable

trip

power

for

maximum

delay

minutes

after

loss

control

power

Special

trip

circuits

energized

from

remote

power

sources

can

provided

Standard

control

circuits

are

available

for

115

and

230

VAC

Refer

the

contactor

rating

table

for

latched

contactor

ratings

Refer

specific

drawings

supplied

with

the

equip

ment

for

details

connection

and

operation

Mechanically

Latched

Contactors

Mechanically

latched

contactors

are

available

which

consist

standard

contactor

with

the

addition

mechani

cally

latch

assembly

The

mechanical

latch

holds

the

arma

ture

the

contactor

closed

against

the

magnet

core

after

the

contactor

energized

(

closed

)

and

control

power

removed

pushbutton

the

high

voltage

compartment

door

when

manually

depressed

trips

the

contactor

releasing

the

mechanical

latch

Electrical

trip

with

internal

solenoid

optionally

available

from

the

normal

control

trans

former

source

from

stored

energy

(

capacitor

)

source

which

charged

from

the

normal

control

source

The

stored

Nomenclature

The

contactors

can

identified

through

the

nomenclature

description

shown

below

xxxxxxxxxxxx

CONTACTOR

CONTINUOUS

AMPERE

RATING

360

720

VARIABLE

(

USED

)

LATCHED

CONTACTOR

SPEC

CONTACTOR

SEE

DWG

DRAWOUT

CONTACTOR

FUSE

CARRIAGE

(

FOR

720

CONTROLLER

)

DRAWOUT

CONTACTOR

WITH

SINGLE

PHASE

TRIP

BAR

INSULATION

VOLTAGE

7.2

NUMBER

POLES

CPT

CAPACITY

KVA

NONE

KVA

1.5

KVA

2.0

KVA

2.5

KVA

3.0

KVA

3.25

KVA

OTHERS

INTERRUPTION

CAPACITY

5.0

200

MVA

350

MVA

400

MVA

570

MVA

CPT

SECONDARY

CONTROL

CIRCUIT

VOLTAGE

115

VAC

230

VAC

125

VDC

250

VDC

OTHERS

NONE

MAIN

FUSE

RATING

NONE

100

125

150

200

250

300

325

350

375

400

450

500

600

800

OOOE

MISC

CPT

PRIMARY

VOLTAGE

NONE

2300

3300

4000

4600

3300

6600

(

BELOW

)

OTHERS

(

MAX

7200

)

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Receiving

and

Handling

Page

Receiving

Inspection

immediate

inspection

should

made

for

any

damage

which

may

have

occurred

during

shipment

upon

receipt

this

equipment

The

inspection

should

include

examination

the

packaging

material

and

the

contactor

sure

look

for

concealed

damage

and

not

discard

the

packaging

material

damage

found

note

damage

“

Bill

Lading

”

prior

accepting

receipt

the

shipment

possible

NOTE

The

way

visible

shipping

damage

treated

the

consignee

prior

signing

the

delivery

receipt

can

determine

the

outcome

the

damage

claim

filed

Notification

the

carrier

within

the

day

limit

concealed

damage

essential

loss

resulting

from

unsettled

claims

eliminated

mini

mized

claim

should

immediately

filed

with

the

carrier

and

the

Siemens

sales

office

should

notified

damage

loss

discovered

description

the

damage

and

much

identification

information

possible

should

accompany

the

claim

Handling

For

convenience

and

safety

lifting

moving

the

contactor

the

lifting

device

similar

that

shown

Figure

should

purchased

Figure

Lifting

Device

crane

hoist

also

recommended

handle

the

contactor

the

lifting

device

not

available

Refer

Figure

for

recommended

lifting

method

forklift

truck

can

also

utilized

Observe

the

following

precautions

prior

moving

the

con

tactor

with

crane

hoist

Keep

the

contactor

upright

position

only

Select

rigging

lengths

compensate

for

any

unequal

weight

distribution

not

allow

the

angle

between

the

lifting

cables

and

vertical

exceed

degrees

Never

lift

contactor

above

area

where

personnel

are

located

NOTE

The

lifting

device

not

intended

used

means

transporting

the

contactor

the

raised

position

The

contactor

should

transported

with

the

lifting

device

its

lowered

position

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Receiving

and

Handling

Page

forklift

utilized

the

following

precautions

should

taken

when

moving

contactors

Keep

the

contactor

upright

position

only

Make

sure

the

load

properly

balanced

the

forks

Place

protective

material

between

the

contactor

and

the

forklift

prevent

bending

scratching

Securely

strap

the

contactor

the

forklift

prevent

shift

ing

tipping

Excessive

speeds

and

sudden

starts

stops

and

turns

must

avoided

when

handling

the

contactor

Lift

the

contactor

only

high

enough

clear

obstructions

the

floor

Take

care

avoid

collisions

with

structures

other

equip

ment

personnel

when

moving

the

contactor

Never

lift

contactor

above

area

where

personnel

are

located

Storage

The

contactor

must

stored

clean

dry

dust

and

condensation

free

environment

cannot

placed

into

service

reasonably

soon

after

receipt

not

store

equipment

outdoors

standard

150

watt

light

bulb

connected

burn

continuously

should

placed

within

the

contactor

prevent

condensation

Figure

Recommended

Lifting

Method

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Installation

Page

AWARNING

Electrical

Connections

Inspect

all

insulated

wiring

see

that

damage

has

resulted

from

installing

the

contactor

Test

the

high

voltage

wiring

for

possible

grounds

short

circuits

dielectric

test

2.25

times

the

nominal

system

voltage

plus

2000

volts

applied

for

one

minute

between

phases

and

from

ail

phases

ground

the

preferred

method

sure

disconnect

any

devices

(

control

power

transformer

etc

)

from

the

circuit

which

could

damaged

the

test

voltage

pot

tester

not

available

then

Megger

test

1000

volts

suitable

second

choice

Accidental

contact

with

energized

wiring

bus

system

can

cause

electric

shock

burn

electrocution

Disconnect

and

lock

out

incoming

power

and

control

voltage

sources

before

begin

ning

work

this

any

other

electrical

equipment

Check

all

control

circuit

terminals

with

voltmeter

make

certain

that

the

equip

ment

totally

deenergized

Use

only

proved

high

voltage

test

equipment

check

voltage

power

terminals

not

attempt

measure

high

voltage

with

volt

ohm

meter

AWARNING

Excessive

dielectric

test

voltages

can

cause

harmful

radiation

emitted

from

vacuum

bottles

recommended

that

safety

ground

connected

the

power

bus

after

the

sys

tem

has

been

deenergized

and

prior

working

the

equipment

the

pro

cedure

outlined

the

pre

energization

check

section

this

manual

before

power

restored

Vacuum

type

interrupters

can

produce

rays

they

are

subjected

sufficiently

high

voltages

The

vacuum

bottles

used

Siemens

type

contactors

will

not

produce

harmful

rays

applied

vol

tages

less

High

potential

dielectric

tests

should

limited

max

imum

value

250

volts

RMS

allow

adequate

safety

margin

for

protection

personnel

from

radiation

Site

Preparation

and

Mounting

Installation

shall

accordance

with

the

National

Electrical

Code

ANSI

and

NFPA

Standards

The

contactor

should

installed

clean

dry

heated

place

with

good

ventilation

should

readily

accessible

for

cleaning

and

inspection

and

should

carefully

set

and

leveled

its

supporting

foundation

and

secured

place

All

adjustments

have

been

made

the

factory

before

ship

ping

and

generally

change

required

See

that

ail

contact

surfaces

are

clean

and

smooth

and

that

current

carrying

parts

are

not

damaged

AWARNING

High

peak

voltages

can

result

roneous

test

results

and

radiation

emitted

from

vacuum

bottles

causing

personal

injury

not

exceed

the

recommended

test

voltages

when

performing

dielectric

tests

AWARNING

Accidental

contact

with

dielectric

megger

test

equipment

can

cause

shock

burn

electrocution

high

potential

test

voltage

sources

using

half

wave

conversion

will

apply

peak

voltages

times

greater

than

the

measured

voltage

not

use

high

potential

voltage

sources

which

employ

half

wave

conversion

circuits

Dielectric

megger

testing

should

only

conducted

qualified

personnel

Refer

test

device

instructions

for

safety

instructions

Courtesy of NationalSwitchgear.com

Installation

Page

Make

sure

that

all

current

carrying

parts

outside

the

contactor

have

adequate

current

carrying

capacity

and

are

correctly

insulated

accordance

with

the

requirements

the

National

Electrical

Code

(

NEC

)

All

electrical

connections

should

made

carefully

per

the

wiring

diagram

furnished

with

the

equipment

Tighten

all

lugs

recommended

torque

values

Use

recommended

crimping

tools

only

crimp

lugs

are

supplied

Adjusting

the

Electromanetic

Drive

Max

4100

Above

8200

Above

650

Below

4100

Above

Altitude

Setting

4100

Below

650

Above

Vacuum

contactors

are

sensitive

certain

degree

the

altitude

the

installation

site

This

due

the

fact

that

atmospheric

pressure

assists

closing

the

main

contacts

exerting

force

the

bellows

the

moveable

end

the

vacuum

bottles

Since

this

force

proportional

the

dif

ference

between

internal

bottle

pressure

and

external

atmos

pheric

pressure

the

contactor

’

main

return

springs

must

adjusted

slightly

when

the

contact

located

extreme

distances

above

below

sea

level

After

suitable

adjustment

the

vacuum

contactors

can

operated

the

following

site

altitudes

From

4100

below

650

above

From

650

below

4100

above

From

4100

above

8200

above

The

vacuum

contactors

are

set

the

factory

for

site

altitude

from

650

below

sea

level

4100

above

sea

level

Figure

Altitude

Adjustment

Information

Plate

Adjustment

the

bottom

the

vacuum

contactor

neces

sary

the

site

altitude

different

from

that

set

the

factory

See

Figure

•

Press

both

setting

plugs

(

9.2

)

using

screwdriver

•

Adjust

each

setting

plug

the

site

altitude

accord

ing

the

instruction

plate

See

Figure

Latched

Contactors

(

Refer

Figure

)

The

trip

rod

the

latched

contactor

locked

the

shipping

position

wire

tie

shown

below

Remove

this

rap

before

placing

contactor

operation

allowing

the

trip

rod

extend

fully

All

latched

contactors

are

shipped

with

threaded

stud

extending

3.62

inches

(

)

from

the

end

the

trip

rod

the

contactor

used

the

bottom

compartment

the

controller

cubicle

this

stud

should

left

place

the

contactor

will

used

the

middle

top

compartments

the

stud

and

associated

nut

and

lockwasher

must

removed

3.62

(

)

Trip

Rod

(

Bolt

Nut

Lockwasher

Wire

Tie

(

Remove

Prior

Installation

)

Figure

Altitude

Adjustment

Figure

Latched

Contactor

Courtesy of NationalSwitchgear.com

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