Hyundai Heavy Industries HCA Series User manual
Notice
�Read and understand these instructions before attempting any
unpacking, assembly, operation or maintenance of the circuit
breaker.
�This instruction manual should be applied only to HCA Series
vacuum contactors.
�This instruction manual does not include all items regarding
installation and maintenance procedures.
�For more information, please contact H UNDAI Heavy Industries
Co., Ltd. or one of our partners.
�
당사 진공접촉기를 사용하시기 전에 반드시 본 취급설명서를 상세히
읽으신 후 설치 및 운전하십시오.
�
본 취급설명서는 HCA 시리즈 진공접촉기에만 적용됩니다.
�
본 취급설명서에는 설치 및 유지∙보수에 관련된 모든 절차가 포함되어
있지는 않으므로 제품에 대해 더 많은 정보를 필요로 하시는 경우에는
당사로 연락하시기 바랍니다.
�
기술적인 문의 및 A/S사항은 가까운 지사 혹은 뒷 표지의 본사 설계 또는
A/S 담당자에게 문의 바랍니다.
HCA Series
진공접촉기
취급설명서
Vacuum Contactorｌ
Instruction Manual
Safety Practices
안전 조항
2<< Vacuum Contactor Instruction Manual
Safety Practices
This instruction manual applies only to the HCA Series
vacuum contactor regarding installation and
maintenance procedures.
Installing and maintaining these products improperly may
result in serious personal injury, property damage, or even
death. Therefore this instruction manual must be read and
understood at any step in unpacking, assembly, operation,
and maintenance of contactors.
Only qualified persons who are familiar with installing and
maintaining contactors are permitted to work on
contactors, and this instruction manual should be
accessible to those persons at any time.
If further information is required, please contact Hyundai
Heavy Industries Co., Ltd.
Signal Words
Signal words used in this instruction manual are divided by
DANGER, WARNING and CAUTION depending on the situation.
Indicates an imminently hazardous point which, if ignored,
will result in death or serious injury.
This is the most dangerous point.
Indicates a potentially hazardous point which, if ignored,
could result in death or serious injury.
Indicates a potentially hazardous point which, if ignored,
may result in minor or moderate injury.
This signal also warns operators not to work unsafely.
Safety Practices During Installation
안전 조항
기호 설명
설치(취부, 접속)시의 주의사항
Excessive heavy weight could cause he
serious injury, or damage. To avoid this
situation, please don’t transport a contactor
on a lifting facility in the raised position.
Do not work on contactors unless the primary
circuits are disconnected by the visible breaker.
When connecting bus-bars, tighten bolts
according to our standards.
Contactors should be tightly mounted on a
horizontal plane.
Do not install the contactors in areas with
high temperature, high humidity, dust,
corrosive or vibrating conditions.
Concrete dust or any other dust should not
be inside of the product when it installed.
It can cause fire or misoperation.
Safety Practices During Operation
Safety Practices During Maintenance
조작시의 주의사항
유지�보수시 주의사항
>> 3
VC |HCA Series
Do not touch the primary circuit and
the control circuit.
Do not work on contactors unless the
primary circuits are disconnected
by the visible breaker.
Replace the vacuum interrupter when
the wipe is below 0.5 mm.
Failure to maintenance the equipment
could result in serious injury and product
failure and can prevent successful
functioning of connected apparatus.
Do not work on contactors with power
being supplied to the control circuit.
Do not leave maintenance tool around
the contactor.
Do not work on closed contactors.
Be sure that bolts are tightened
according to our standards after
replacement and check the tightness
periodically.
It is important to replace the Vacuum
Interrupter for the faculty of the
contactor.
so should consult us to guarantee
proper replacement.
Note and check the relationship between
each wire and its associated auxiliary
switch terminal.
Do not insert & drawout the contactor
in the closed condition.
Do not leave contactors in an
intermediate position.
Always place the contactor in the test
or connection position.
Do not leave contactors of G cradle in
unlock codition.
4<< Vacuum Contactor Instruction Manual
Safety Practices 2
1. General 5
1.1 Specification
1.2 Operating Time & Current
1.3 Application Condition
1.4 Ordering System
1.5 Application Considerations
1.6 Fuse Selection
2.
Receiving/Handling/Storage and Installation
8
2.1 Receiving
2.2 Handling
2.3 Storage
2.4 Installation
2.5 Inspection Before Operation
3. Structure and Explanation of Operation 10
3.1 Structure
3.2 Explanation of Operation
3.3 Structure of the Vacuum Interrupter
3.4 Structure of Cradle Type and Interlock
3.5 Inserting & Withdrawing
3.6 Control Circuit Diagrams
4. Inspection and Maintenance 17
4.1 Visual Inspection
4.2 Periodic Inspection
4.3 Checking Vacuum and the Contact Erosion Limit
4.4 Replacements for Main Components
4.5 Troubleshooting
안전 조항
1. 일반사항
2. 인수/ 취급/ 보관 및 설치
3. 구조와 작동원리
4. 검사와 유지보수
Contents
목차
HCA-Series Vacuum Contactors are suitable for switching
and controlling 3phase motors with squirrel cage of slip
ring rotor, capacitor and transformer which are dried and
molded type.
These are designed and manufactured for the high frequent
switching, especially taken account of safety and quality
assurances.
1.1 Specification
1.2 Operating Time & Current
1.3 Application Condition
1) Ambient temperature: -540
2) Relative humidity: below 85%
3) Altitude: below 1000 m from sea-level
Please contact us for the special applications.
1.1 사양
1.2 소비 전류 및 동작 시간
1.3 사용 조건
>> 5
VC |HCA Series
General
일반사항
01
Rated Voltage
Rated Current
Power frequency withstand voltage
BIL
Interrupting Rating
Category Operating Cycle
Control Voltage
Closing Current (A)
Holding Current (A)
Tripping Current (A)
Closing Time (ms)
Tripping Time (ms)
Do not install contactors in the high
temperature, high humid, dusty, corrosive
and vibrating condition.
1.4 주문 체계
1.5 진공접촉기의 선정시 주의사항
1.4 Ordering System
1.5 Application Considerations
1) Verify that the voltage and current is within the
specified ratings.
2) The vacuum interrupter should be replaced after
1,000,000 operations. If the contactor is not protected
by fuses, the vacuum interrupter should be replaced
if they have interrupted fault currents at or near their
maximum interrupting rating.
6<< Vacuum Contactor Instruction Manual
01 General
일반사항
ItemDigit Specification Code
HCA
1234 56 7 8
Digit 7 is described according to our catalogue
HCA-series Vacuum Contactor
1.6 퓨즈 선정
1.6 Fuse Selection
Fuse selection table
(각사별 퓨즈 선정표)
>> 7
VC |HCA Series
This table is made by catalogues of fuse makers.
Please contact fuse makers for the further details of application
data.
SIBA’s motor selection applies to the 3-phase motor with
starting
time 15 seconds and starting frequency 2 times per hour.
SIBA recommend to choose fuse from the next higher voltage
range in the condensor load.
3Motor (kW)
3.3 kV 6.6 kV 3.3 kV 3.3 kV6.6 kV 6.6 kV
3Transformer (kVA) 3Condenser (kVAR)
Load
Fuse maker
6.3
10
16
20
25
30(31.5)
40
50
63
80
100
125
160
200
250
315
355
2125
2160
2200
2250
SIBA
-
-
-
-
-
-
-
90
100
125
160
200
275
315
400
500
600
-
500
650
750
LG
-
-
-
37~75
-
-
-
90~200
-
-
220~400
-
450~630
710~800
-
-
-
-
-
-
-
LG
-
-
-
75~160
-
-
-
185~400
-
-
450~800
-
900~1250
1500
-
-
-
-
-
-
-
SIBA
-
-
-
50
-
80
100
125
160
200
250
315
400
500
630
750
900
-
800
1000
1250
LG
-
10
-
20
-
30
50
75
-
150
200
-
300
400
-
-
-
-
-
-
-
SIBA
-
-
-
100
-
160
200
250
315
400
500
630
800
1000
1250
1500
1800
-
1600
2000
2500
LG
5
15
-
50
-
75
100
150
-
200
400
-
500
750
-
-
-
-
-
-
-
SIBA
-
-
-
30
-
50
75
100
125
150
200
250
300
375
500
600
700
-
600
750
1000
LG
-
10
-
30
-
50
75
100
-
150
300
-
400
600
-
-
-
-
-
-
-
SIBA
-
-
-
60
-
100
150
200
250
300
400
500
650
750
1000
1200
1400
-
1200
1500
2000
LG
-
25
-
50
-
100
150
200
-
400
600
-
800
1000
-
-
-
-
-
-
-
SIBA
-
-
-
-
-
-
-
160
200
250
330
400
550
650
830
1000
1200
-
1000
1300
1500
Fuse rated
current (A)
8<< Vacuum Contactor Instruction Manual
HCA Series Vacuum Contactors are subjected to complete
factory production tests and inspection before being
packed. They are shipped in packages designed to provide
maximum protection to the equipment during shipment
and storage.
2.1 Receiving
When contactors are delivered, receivers should examine
the contents for any signs of damage such as broken,
damage, missing or loose components.
If damage or loss is detected, notify the nearest HHI office
or representatives.
Inspection after unpacking
1) Check the type rating and quantities with the
specification sheet.
2) Check contactors for any damage or missing materials.
3) Check all the accessories and spares supplied.
2.2 Handling
Contactors must be handled with care to avoid damage.
Ensure that vacuum contactors do not suffer impact or
other injurious physical stress during handling. Damage
could cause serious damage to both persons and property.
2.3 Storage
If contactors must be stored for a period prior to use, they
should be stored only in dry, dust-free and well ventilated
rooms, with contactors in the open condition.
2.1 인수
2.2 취급
2.3 보관
Concrete dust or any other dust
should not be inside of the product
when it installed.
It can cause fire or misoperation.
먼지, 콘크리트 가루, 철분 등의 미물질 및 빗물
등이 본제품의 내부에 들어가지 않도록
보관하십시오.
Excessive weight can cause serious
injury or damage.
To avoid this situation, Do NOT transport
a contactor on a lifting facility in the
raised position.
제품 이동시 낙하로 인한 심각한 사고 및 제품
손상이 우려됩니다.
Receiving / Handling / Storage and Installation
인수 / 취급 / 보관 및 설치
02
>> 9
VC |HCA Series
2.4 Installation
1) Confirm the type and rating, make sure no damage
and clean contactors with dry cloths, before installing
contactors into the switchgear.
2) Mount contactors on a level floor referring to
guidelines for mounting dimensions in our catalogue
“HCA Series Vacuum Contactor”.
3) Clean the connecting surface with dry cloths, and then
connect main-circuit buses and earth terminals.
Be careful not to shock enclosures and contactors.
2.5 Inspection Before Operation
1) Confirm whether contactors are installed properly.
If not, install contactors each again according to clause 2.4.
2) Operate contactors a few times manually to ensure
that contactors closes and opens smoothly.
Then, operate contactors electrically in the test
position, and confirm that the ON/OFF indicator works
properly.
3) Confirm that no tools and materials are left near the
contactor.
2.4 설치 작업
2.5 운전 전 점검사항
Do not work on contactors unless the
primary circuit are disconnected by the
visible breaker.
When connecting bus-bars, tighten bolts
by the our standard.
Contactors are mounting on the
horizontal plane tightly.
10 << Vacuum Contactor Instruction Manual
3.1 Structure
The Fig. 3-1 is the section-drawing of the mechanism part
in the HCA Series Vacuum Contactor.
3.2 Explanation of Operation
1) Closing
When the Closing Coil
is energized,
the Moving Core
moves toward the Closing Coil
and compresses the Opening Spring
.
At the same time, the Pressing Plate
, which is fixed
on the Main Shaft
, pushes the Pressing Spring
,
so the Movable Stem of the Vacuum Interrupter
is moved up to make the CLOSED condition.
For latched type (mechanical latching), the latch device
holds the Moving core of the contactor closed against
the closing coil after the contactor is energized (closed)
and the control source is removed.
3.1 구조
3.2 동작 원리
1) 투입 동작
Structure and Explanation of Operation
구조와 작동원리
03
>> 11
VC |HCA Series
2) Opening
For continuously energized types, if the closing coil is
de-energized by the OFF signal and the opening
spring is released to the OPEN condition,
then the opening of contactor is completed.
For latched type, if the trip coil is energized by OFF
signal or the trip button is pushed, the hook roller of
the latch device is released and the moving core
moves to OPEN condition by the opening spring.
3.3 Structure of the Vacuum Interrupter
2) 트립 동작
3.3 진공밸브 구조
The Vacuum Interrupter has, the Contact
Stem
, the Contacts
, the Bellows
and the Ceramic Insulator
.
The contact is designed to guarantee 1
million operations and to restrain the
transient recovery voltage under 1 A
chopping current.
The low pressure in the Vacuum
Interrupter is maintained for over
30 years of service, so the Vacuum
Interrupter is maintenance-free.
But if necessary, it is checked by the
HYUNDAI VACUUM TESTER (HVT-1).
12 << Vacuum Contactor Instruction Manual
3.4 Structure of Cradle Type and Interlock
1) Structure of cradle type
The Fig. 3-3 is the cradle type of HCA Series Vacuum
Contactor.
ON/OFF Indicator
ON means Closed condition, OFF means Open condition.
Counter
The Counter shows how many times the contactor
has operated since it was made.
The Counter may read 100 when you receive the
contactor, because it was tested in our factory or in
other place after manufacturing.
Trip Button
Only the latched types have the Trip Button which is
used in emergencies.
Control Plug
The control source is supplied through the Control Jack.
Position Interlock
The Position Interlock makes the contactor operate
only in the test and service position and prevents the
contactor from closing mechanically between TEST
and CONNECTION position.
Manual Closing Hole
Only latched types have a Manual Closing Hole which
is used to close the contactor manually.
3.4 인출형 구조 및 구속장치
1) 인출형 구조
ON/OFF Indicator
Counter (
Trip Button (
Control Plug (
Position Interlock (
Manual Closing Hole (
Fuse (
Fuse Melting Indicator (
Position Switch (
Fuse Barrier (
Structure and Explanation of Operation
구조와 작동원리
03
>> 13
VC |HCA Series
Fuse
Fuses prevent the magnification of the short-circuit current
.
Fuse Melting Indicator
The Fuse Melting Detector can show electrically
whether the Fuse was blown or not.
Position Switch
The Position Switch indicates electrically where the
contactor is in the TEST or CONNECTION position.
2) Interlock
2) 구속장치
1
2
If the contactor is closed,
it cannot insert and
withdraw contactor
in the TEST or
CONNECTION position
The contactor cannot be
closed during the process
of inserting and withdrawing
Move the contactor to TEST
or CONNECTION position,
and then close the contactor.
The Interlock Pin,
attached in frame inside,
prevents the contactor from
inserting mechanically.
The Interlock Pin prevent the
closing mechanically.
The Auxiliary Switch cuts off
the control source
(electrical interlock)
Open the contactor
Standard
Standard
Option
14 << Vacuum Contactor Instruction Manual
Structure and Explanation of Operation
구조와 작동원리
03
3.5 Inserting & Withdrawing
1) How to insert the contactor in the E, F2 cradle.
Inserting
Set the wheels of the contactor exactly
on the guide rail of the cradle.
At this time, more than two person
have to lift up the breaker for full
safety. If the contactor is pushed to the
TEST position, the Interlock Pin
prevents the draw-in at this position.
Hold up the Interlock Lever (Fig. 3-4)
and push the Contactor to the
CONNECTION position. If the contactor
is in the correct position, put the
Interlock pin puts into the hole on the
guide plate and the Female Contact
will be inserted fully into the terminal.
Withdrawing
When a contactor is withdrawn, the contactor cannot
be operated because of the interlock.
In OPEN condition, hold up the Interlock Lever
(Fig. 3-4) and pull out a contactor to the TEST position.
3.5 인출입 방법
1) E & F2 Cradle 인출입 방법
Do not insert and withdraw the contactor
in the closed condition.
Hold up the Interlock Lever during the
inserting and withdrawing.
Interlock Lever
Interlock Plate
>> 15
VC |HCA Series
How to insert the contactor in the M cradle.
The interlock, which is screw operation type,
will be conducted automatically in each Test and
Service position separately.
Before inserting contactor
Make sure that contactor is open.
Set the Manual Lock Handle to the UNLOCK position.
Inserting to the TEST position
Put a contactor into the switchgear and push it slowly
until it stops. This is the test position.
Set the Manual Lock Handle to the LOCK position.
Please refer to Fig. 3-6.
Inserting to the CONNECTION position
Insert the Rack Handle to the head of the Fixing Screw.
Turn it clockwise direction.
If the contactor is inserted fully, the Fixing Screw
cannot be rotated and the Position Sticker indicates the
CONNECTION POSITION.
When you pull out the Rack-in Handle at this position,
the Stopper is pushed out to prevent the unexpected
moving of the Fixing Screw.
Do not touch the primary circuit and
the control circuit.
통전되고 있는 주회로 및 제어회로 단자부에는
접촉하지 마십시오.
Rack-in Handle
Stoper
Inserting
Do not leave contactors in an
intermediate position.
Always place the contactor in the test or
connection position.
Do not leave contactors of G cradle in
unlock codition.
Manual Lock Handle
FRONT COVER
16 << Vacuum Contactor Instruction Manual
Structure and Explanation of Operation
구조와 작동원리
03
3.6 Control Circuit Diagrams
3.6 제어 회로도
VZ: Closing Switch
R: Resistor
CC: Closing Coil
Z: TNR
X: Relay
TC: Trip Coil
CTD: Condensor Trip Device
Aux. SW: Auxiliary Switch
FOR FIXED TYPE
FOR DRAWOUT TYPE
CONTROL PLUG
FOR FIXED TYPE
FOR DRAWOUT TYPE
CONTROL PLUG
CONTROL PLUG
CONTROL PLUG
CONTROL PLUG
FUSE MELTING INDICATOR
TEST CONNECTION
POSITION SWITCH
PT 2SETSPT 1SET
>> 17
VC |HCA Series
Maintenance shall be carried out to preserve trouble-free
operation and achieve the longest possible working life of
contactors.
HCA Series Vacuum Contactors are characterized by their
simple and robust construction and they have a long life
expectancy. Their operating mechanisms have a low
maintenance requirement, and the interrupters are
maintenance-free during their working life.
The maintenance is determined by environmental
influences, switching frequency, and so on.
4.1 Visual Inspection (every 1-6 months)
The purpose of a visual inspection has to be done
whenever you can.
4.1 일상 점검 (매 1-6개월)
1
2
3
Failure to maintain the equipment could
result in serious injury and product failure
and can prevent successful functioning
of connected apparatus.
Do not work on contactors with power
being supplied to the control circuit.
Do not leave maintenance tools around
the contactor.
Do not work on closed contactors.
Be sure that bolts are tightened by the
our standard after replacement and
check the tightness periodically.
Inspection and Maintenance
검사와 유지보수
04
18 << Vacuum Contactor Instruction Manual
Inspection and Maintenance
검사와 유지보수
04
Object Items
Standard
interval
Check procedure
Clean and dry when the dust or
humidity is extreme
If a component is badly
damaged, replace it.
Check if the strike pin of fuse is out
If it is blown, each fuse for 3 phases
should be replaced at the same time.
Check if the fuse melting
indicator operates smoothly.
If not, put the grease on the moving parts.
Check and tighten bolts.
Check if the contact erosion is expired.
If it is expired, each VI of 3 phases
should be replaced at the same time.
Check and tighten bolts.
Check for scratches or rust.
If the coil discolored, replace it.
Check and tighten bolts.
One should be operated
at 85110% of rating.
Check for scratches or rust.
Put grease on the moving parts.
The gap between the roller and
the operating plate should be
0.20.5 mm. If not, replace the
Latch Device.
If coil is discolored, replace it.
One should be operated
at 85110% of rating.
The resistance of contact of
auxiliary switch should be below
200 m. If not, clean the contact.
The connection plug is completely
inserted.
Put grease on the moving parts.
The female contact should be
inserted above 10 mm.
Check if it moves smoothly.
Above 1000 Mbetween line-
earth, electrodes, and line-earth.
Above 2 Mbetween the
control line and the earth.
Main
body
Fuse
Vacuum
interrupter
Open and
close
mechanism
Latch
mechanism
Auxiliary
Switch,
Closing
Switch
Inserting
mechanism
Insulation
resistance
Contact
wear
Pressure
Tightness
Spring
Closing
Coil
Hook
Roller
Trip Coil
Switch
Wiring
Isolating
Contact
Interlock mechanism
Main
conductor
Control
circuit
3 years
1 years
3 years
3 years
3 years
3 years
3 years
3 years
3 years
3 years
3 years
Insulation 3 years
6 years
3 years
3 years
Overall
Fuse
Fuse
Melting
Indicator
4.2 Periodic Inspection
4.2 정기 점검
>> 19
VC |HCA Series
4.3
Checking Vacuum and the Contact Erosion Limit
1) Checking the vacuum
The low pressure in the Vacuum Interrupter is
maintained for over 30 years of service.
That means the Vacuum Interrupter is maintenance-free.
But if necessary, it is checked by the HYUNDAI
VACUUM TESTER (HVT-1).
2) Checking the contact erosion
Since the contacts are contained inside the interrupter,
they remain clean and require no maintenance.
However, during high current interrupting, there may
be a minimum amount of erosion from the contact
surfaces. To check the erosion of the interrupter
contacts and carry out the following operations.
Close the contactor.
Open the Rear cover.
Measure the distance between the Dish Washer
and the Pressing Plate.
With new interrupters this distance is about
1.0~2.0 mm.
If it is reduced to 0.5mm,
the three interrupters
must be replaced.
Checking the contact erosion is important to
evaluate the efficiency of the interrupters
(Refer to the Fig. 4-1).
4.3 진공밸브의 진공상태와 마모 확인
1) 진공상태 점검
2) 진공밸브의 마모 확인
Replace the vacuum interrupter
when the wipe is below 0.5 mm.
Wipe가 0.5 mm이하가 되면 진공 밸브를 교체
하여 주십시오.
1.0~2.0 mm 0 mm
Dish Washer
Pressing Plate
20 << Vacuum Contactor Instruction Manual
Inspection and Maintenance
검사와 유지보수
04
4.4 Replacements for Main Components
Remove the contactor from the enclosure to ensure that all
high voltage sources are disconnected.
1) Replacing the fuse
Remove the fuse barriers.
Loosen the upper fixing bolts
and Supportors
.
Loosen the lower fixing bolts.
Renew the fuses.
The fuse must have the striker facing towards
the Front Cover.
If new fuses are longer than old ones,
rear Fuse holders move the 100 mm backward.
Insert new fuses and tighten the bolts.
Reverse the action in the previous step.
4.4 주요 부품 교체
1) 퓨즈 교체
Strike /
Fuse Holder /
Supportor /
Upper fixing bolt
Lower fixing bolt
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