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Vacuum Circuit Breaker Instruction Manual

Structure and Operation

구조 및 동작설명

04

4.2 Operation Mode

1) Charging

When the charging mechanism is
activated by hand or motor (31),
the charging shaft (11-1) turns by
the gears and the driver (11-2) so
that the closing spring (12) is
tensioned. When the closing
spring is fully tensioned, the
closing pawl (11-3) latches 
closing spring .

2) Closing

When closing command is
applied, the closing spring is
unlatched by the activation of 
the closing pawl. Through the
energy from the discharging of
the closing spring, the coupling
bar is powerfully pushed down 
via the charging shaft and the
cam.
Consequently, the breaker shaft 
is turned until the moving 
contact is fully closed and 
latched by the trip pawl (25-1).
At the same time, the contact
pressure spring (49) is
compressed to insure sufficient
contact pressure on the moving
contact while the breaker is in 
the closed position, and the
tripping spring (13) is 
compressed for the opening
operation.

3) Recharging

After the closing operation, the
closing spring can be 
immediately recharged by a 
motor (31) or hand so that the
breaker immediately re-closes 
in case the closing authorization
re-close is applied.

4) Tripping

When opening command is
applied, the tripping spring is
unlatched by the activation of 
the trip pawl, and the breaker
shaft is returned to the open
position.

11-1

11-2

12

31

11-3

11

25-1

33

16

49

4.2 동작 설명

1) 차징

수동적인 방법이나 모터(31)에 의해
Closing Spring(12)이 차지되면, 
Charging Shaft(11-1)가 Gear나
Driver(11-2)에 의해 돌아가서
투입스프링을 압축합니다.
Closing Spring이 완전히 압축되면, 
Closing Pawl(11-3)은 Closing
Spring이 풀리지 않도록 고정시킵니다.

2) 투입

투입지령이 들어오면, Closing Spring이
Closing Pawl에 의해 압축을 풀게
됩니다. 
이 에너지에 의해 Coupling Bar가
Charging Shaft와 Cam을 통하여
세게 아래로 내려가게 됩니다.
결과적으로, Breaker Shaft(16)는
Moving Contact가 완전히 닿을 때까지
회전하게 되며, Trip Pawl(25-1)에 의해
멈춰집니다.
동시에 Contact Pressure Spring(49)은
차단기가 투입상태에서 Moving
Contact에 적정 압력을 주기 위해
알맞게 압축됩니다. Trip Spring(13)은
Opening 동작을 위해 압축됩니다.

3) 재투입 대기

투입동작 후에, Closing Spring이
모터나 수동으로 다시 압축될 수
있습니다. 이는 재투입 지령이 내려오면
다시 재투입하기 위해서 입니다.

4) 트립

트립 지령이 내려지면, 
Tripping Spring이 Trip Pawl에 의해
압축이 풀어지고, Breaker Shaft는
개극 위치로 돌아오게 됩니다.

Fig. 4-4 / 그림 4-4 

Charging

Tripping

Closing

Recharging

Содержание HVF Series

Страница 1: ...it breaker This instruction manual should be applied only to HVF Series Vacuum Circuit Breakers This instruction manual does not include all items regarding installation and maintenance procedures For...

Страница 2: ...ould be accessible to those persons at all times Signal Words Signal words used in this instruction manual are DANGER WARNING and CAUTION in descending order of urgency Indicates an imminently hazardo...

Страница 3: ...touch the main and control circuit while the product is in operation The hazardous voltage can cause electric shocks Do not let the product stay in the DISCONNECTION position with UNLOCK state If the...

Страница 4: ...stalling the Breaker 11 3 1 Unloading and Storage 3 2 Unpacking 3 3 Inspection After Unpacking 3 4 Installation 3 5 Inspection Before Operation 3 6 Manual Operation 4 Structure and Operation 13 4 1 Co...

Страница 5: ...1141 C HVF1151 D HVF2141 C HVF2151 D HVF3141 C HVF3151 D HVF6111 F HVF6141 F HVF1142 C HVF1152 D HVF1162 D HVF1172 F HVF2142 C HVF2152 D HVF2162 D HVF2172 F HVF3142 C HVF3152 D HVF3162 D F HVF6112 F H...

Страница 6: ...xt close open operation without delay Consideration of site altitude If the site altitude is higher than 1000 m dielectric strength of the breaker will be reduced according to the altitude Therefore t...

Страница 7: ...B Jack and 3 8 for C D Jack AC Option 1 A B Jack 21 22 C D Jack 3 8 M1 Motor operating mechanism K1 Anti pumping contactor R1 Resistor X0 Plug Connector Y1 Open solenoid Y2 2nd open solenoid Y4 C T op...

Страница 8: ...he contact pressure spring is compressed properly to maintain sufficient contact pressure on the moving contact of the vacuum interrupters while the breaker is in the closed position and the tripping...

Страница 9: ...e used as AC power supply connecting to the motor or closing circuit 2 8 AC Ry B1 B2 9 VCB HVF Series Fig 2 4 Condenser trip device 2 4 Fig 2 5 Circuit diagram of condenser trip device 2 5 This device...

Страница 10: ...g the screw down as shown in Fig 2 7 2 10 2nd Open Solenoid Y2 The 2nd trip solenoid Y2 can be attached to the HYUNDAI HVF circuit breaker putting aside the 1st trip solenoid Y1 so that the circuit br...

Страница 11: ...any damage or missing materials 3 Check all accessories and spares supplied Also check to see if these parts are damaged 3 4 Installation Before installing the circuit breaker into the switchgear che...

Страница 12: ...ress the OPEN button And be sure to check that the breaker is opened and the CLOSE OPEN indicator displays open 4 Finally check that no tools and materials are left near the breaker Bus bar 3 5 1 2 3...

Страница 13: ...Indicator 21 Closing Button 22 Trip Button 23 Name Plate 24 Hole for the charging handle 31 Motor 32 Closing Solenoid 33 Trip Solenoid 34 Limit Switch S3 S21 S22 35 Anti Pumping Contact K1 36 Auxilia...

Страница 14: ...essed to insure sufficient contact pressure on the moving contact while the breaker is in the closed position and the tripping spring 13 is compressed for the opening operation 3 Recharging After the...

Страница 15: ...disconnection or test position At this time push down the interlock lever fully for easy insertion Check that the wheels of the breaker are inserted into the cradle as fig 4 8 3 Insertion to the conne...

Страница 16: ...the breaker is opened insert the crank handle in the hole and push the interlock lever down fully Then push the crank handle down against the breaker so that the breaker goes to the disconnection pos...

Страница 17: ...e in the hole to draw in and out Rotate handle about 50 times counterclockwise If operator pulls the center handle out interlock will be released and the breaker will be fully separated from cradle 3...

Страница 18: ...ition After lifting the center handle the operator can push the breaker to the cradle until it makes a locked sound 3 Insertion into the connection position Same as the SF GS type method 4 Withdrawing...

Страница 19: ...ocker to the unlock state and pull the breaker out slowly The Head of Fixing Screw Improper operation of the breaker can cause product damage The breaker can be withdrawn if the head of the fixing scr...

Страница 20: ...year a general visual inspection is to be carried out The outer insulation parts should be wiped with a rag more frequently if the breakers are exposed to dust HVF 5 1 5 1 Failure to maintain the equ...

Страница 21: ...re insulation resistance between phases and between pole earth with 1000 V megger if the measured value is less than 500 M check the cause 2 Check insulation resistance between control circuit and ear...

Страница 22: ...Motor switch off Motor will not run Spring charged Closing spring not charged Breaker closed Breaker is not in proper position No electrical close signal Breaker open No electrical open signal Check...

Страница 23: ...th to prevent any accumulation of dust or dirt Avoid any lubricant on insulation or other electrical parts Moving parts should then be moved slightly to let the grease penetrate and become properly di...

Страница 24: ...01746 HVS01746 HVS01747 HVS01753 HVS01753 HVS01753 HVS01753 HVS01726 HVS01745 HVS01745 HVS01745 HVS01746 HVS01746 HVS01747 20 20 20 20 20 20 20 20 20 20 28 28 28 28 28 28 28 28 28 28 38 38 38 38 38 38...

Страница 25: ...S02421 HVS02421 HVS02435 HVS03626 HVS03626 HVS03640 HVS03640 HVS03640 HVS01750 HVS01750 HVS01750 HVS01746 HVS03640 HVS03640 HVS03640 HVS03642 HVS03642 HVS03642 38 50 50 50 50 70 70 70 70 70 19 19 36 3...

Страница 26: ...26 Vacuum Circuit Breaker Instruction Manual Maintenance Recording Maintenance Recording Sheet Date Signature Remarks Cost Free Engineer Service Agent The Substance of Service...

Страница 27: ...27 VCB HVF Series Memo...

Страница 28: ...Yurakucho Denki Bldg 1 7 1 Yuraku cho Chiyoda ku Tokyo 100 0006 Japan Tel 81 3 3211 4792 Fax 81 3 3216 0728 Osaka I Room 5th Floor Nagahori Plaza Bldg 2 4 8 Minami Senba Chuo ku Osaka 542 0081 Japan T...

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