VCB1-24

VCB1-24 GREEGOO | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 16

Technical content

Greegoo Electric 5.2008 http://www.greegoo.com 1-1 Indoor Vacuum Circuit Breaker General And Application VCB1-24 model indoor AC High-voltage Vacuum Circuit Breaker (hereinafter referre d to as circ uit breaker) is indoor switchgear equipment applicable for power system of three phase AC 50Hz or 60Hz, rated voltage up to 24kV , and serves as protection & control unit for power equipments of power grid and industrial and mining enterprises. This is the new generation of vacuum circuit breaker independently developed by GREEGOO aiming at the domestic and international markets and based on many years of production experience. The circuit breaker accords with the standards of IEC 62271-100, GB1984, JB3855, DL/T 402/403 and so on. Product Features VCB1-24 model Indoor Vacuum Circuit Breaker The circuit breaker adopts the new generation of modular spring operation mechanism , with compact and simple structure, reasonable arrangement, reliable transmission and convenient installation; The operation mechanism and the body of circuit breaker are designed in integration; It not only can serves as a fixed installation unit, but also can be a handcart unit with combined special pushing mechanism. The main conductive circuit mainly adopts the solid sealed pole, and the insulation tube is optional; The main circuit adopts the integrated solid sealed pole in solid insulation structure, to realize maintenance free, high reliability and minaturization. The circuit breaker is E2 degree. It has perfect five-prevention interlocking function after installed in the switchgear. Model And Meaning VCB 1 - □ / □ - □ 1 2 3 4 5 1. Vacuum Circuit Breaker 2. Design sequence 3. Rated voltage (kV) 4. Rated current (A) 5. Rate short-circuit breaking current (valid value kA) Normal Service Conditions Altitude above sea level: 1000m and below; Ambient temperature: -15 o C~+40 o Relative humidity: daily average less than 95%, monthly average less than 90%; Saturated vapor pressure: daily average less than 2.2X10 Mpa, monthly average less than 1.8X10 Mpa; Earthquake intensity: not exceed 8 degree; Site without flammable, explosive and corrosive material, and frequent violent vibration. Any special requirements, please consult the manufacturer.

Greegoo Electric 5.2008 http://www.greegoo.com Vacuum Circuit Breaker 1-2 Indoor Vacuum Circuit Breaker Remarks: a. When the rated current is 3150A forced air cooling is needed b. According to E2 degree standard electrical life stipulated in IEC62271-100, breaking time of rated short- circuit breaking current is 274. ■ Mechanical parameters of circuit breaker

5.1 Main technical parameters of circuit breaker table 1

Remarks: a. , . b. According to stipulated in IEC62271-100, breaking time of current When the rated current is 3150A forced air cooling is needed E2 degree standard electrical life rated short-circuit breaking is 274.

5.2 Mechanical parameters of circuit breaker table 2

No. Name Unit Data kV Hz kV kA kA time A s V 17.4 O-0.3s-CO-180s-CO 630 1250 21.7 DC(AC)220/110 b E2 degree 20000 125 125 50, or 60 1250 1600 2000 2500 a 3150 31.5 31.5 27.4 Rated voltage Rated frequency Rated current 1min P.F. Withstand voltage Rated lightening impulse withstand voltage Between phases, phase to ground Between phases, phase to ground Between gaps Between gaps Rated insulation level Rated 4s short-time withstand current Rated short-circuit breaking current Rated peak withstand current Rated short-circuit making current Rated short-circuit duration Rated outphase earth fault breaking current Rated operating sequence Rated operating voltage Electrical life Mechanical life mm m/s ms A ms Reliably close under 85% 110% rated voltage Reliably open under 65% 120% rated voltage 13 1 4 1 210, 275 1.3 0.3 0.6 0.2 630 1250 1600 2000 2500 3150 50 45 35 35 30 25 55 50 40 40 35 30 Opening is prohibited under less than 30% rated voltage No. Name Unit Data Open distance of contact Over travel of contact Centre distance between phases Allowable wear of contact Average opening speed (6mm) Average closing speed Bounce time of contact closing Three phase closing, opening asynchronism Main circuit resistance Opening time Closing time Operating characteristic of operating mechanism Rated voltage Fixed type Handcart type ■ Main technical parameters of operating mechanism

5.3 Main technical parameters of operating mechanism table 3

V A V W S V DC(AC)220/DC(AC)110 DC(AC)220/DC(AC)110 5/3.5 DC(AC)220/DC(AC)110 2000 Rated current (A) Rated short-circuit breaking current (kA) Dim. of matched fixed contact (mm) 630 1250 20, 25 20, 25, 31.5 35 49 OUTLINE DIMENSION 638(838) 276(367) 210(275) 210(275) 652(852) 680(885) 326 310 135 458 300 320 744 770 C/O indication Energy storage indication Manual opening Manual closing Manual energy storage Counter 108 Forward travel of handcart: 300mm Fig.1 Outline diagram of VHY1-24 model handcart type Circuit Breaker (Rated current 1250A) Rated opening operating voltage Rated closing operating voltage Rated instantaneous over-current tripping current Rated voltage of energy storage motor Rated output voltage of energy storage motor Energy storage time 1 min P.F. withstand voltage of secondary circuit No. Name Unit Data Main Technical Parameters ■ Main technical parameters of circuit breaker Remarks: a. , . b. According to stipulated in IEC62271-100, breaking time of current When the rated current is 3150A forced air cooling is needed E2 degree standard electrical life rated short-circuit breaking is 274. No. Name Unit Data kV Hz kV kA kA time A s V 17.4 O-0.3s-CO-180s-CO 630 1250 21.7 DC(AC)220/110 b E2 degree 20000 125 125 50, or 60 1250 1600 2000 2500 a 3150 31.5 31.5 27.4 Rated voltage Rated frequency Rated current 1min P.F. Withstand voltage Rated lightening impulse withstand voltage Between phases, phase to ground Between phases, phase to ground Between gaps Between gaps Rated insulation level Rated 4s short-time withstand current Rated short-circuit breaking current Rated peak withstand current Rated short-circuit making current Rated short-circuit duration Rated outphase earth fault breaking current Rated operating sequence Rated operating voltage Electrical life Mechanical life mm m/s ms A ms Reliably close under 85% 110% rated voltage Reliably open under 65% 120% rated voltage 13 1 4 1 210, 275 1.3 0.3 0.6 0.2 630 1250 1600 2000 2500 3150 50 45 35 35 30 25 55 50 40 40 35 30 Opening is prohibited under less than 30% rated voltage No. Name Unit Data Open distance of contact Over travel of contact Centre distance between phases Allowable wear of contact Average opening speed (6mm) Average closing speed Bounce time of contact closing Three phase closing, opening asynchronism Main circuit resistance Opening time Closing time Operating characteristic of operating mechanism Rated voltage Fixed type Handcart type

Greegoo Electric 5.2008 http://www.greegoo.com Indoor Vacuum Circuit Breaker Outline Dimension V A V W S V DC(AC)220/DC(AC)110 DC(AC)220/DC(AC)110 5/3.5 DC(AC)220/DC(AC)110 2000 Rated current (A) Rated short-circuit breaking current (kA) Dim. of matched fixed contact (mm) 630 1250 20, 25 20, 25, 31.5 35 49 OUTLINE DIMENSION 638(838) 276(367) 210(275) 210(275) 652(852) 680(885) 326 310 135 458 300 320 744 770 C/O indication Energy storage indication Manual opening Manual closing Manual energy storage Counter 108 Forward travel of handcart: 300mm Fig.1 Outline diagram of VHY1-24 model handcart type Circuit Breaker (Rated current 1250A) Rated opening operating voltage Rated closing operating voltage Rated instantaneous over-current tripping current Rated voltage of energy storage motor Rated output voltage of energy storage motor Energy storage time 1 min P.F. withstand voltage of secondary circuit No. Name Unit Data Forward travel of handcart: 300mm Fig.1 Outline diagram of VCB1-24 model handcart type Circuit Breaker (Rated current ≤1250A) V A V W S V DC(AC)220/DC(AC)110 DC(AC)220/DC(AC)110 5/3.5 DC(AC)220/DC(AC)110 2000 Rated current (A) Rated short-circuit breaking current (kA) Dim. of matched fixed contact (mm) 630 1250 20, 25 20, 25, 31.5 35 49 OUTLINE DIMENSION 638(838) 276(367) 210(275) 210(275) 652(852) 680(885) 326 310 135 458 300 320 744 770 C/O indication Energy storage indication Manual opening Manual closing Manual energy storage Counter 108 Forward travel of handcart: 300mm Fig.1 Outline diagram of VHY1-24 model handcart type Circuit Breaker (Rated current 1250A) Rated opening operating voltage Rated closing operating voltage Rated instantaneous over-current tripping current Rated voltage of energy storage motor Rated output voltage of energy storage motor Energy storage time 1 min P.F. withstand voltage of secondary circuit No. Name Unit Data Fig.3 Outline diagram of VHY1-24 model Fixed type Circuit Breaker (Rated current 1250A) Rated current (A) Rated short-circuit breaking current (kA) Dim. of matched fixed contact (mm) 1600 2000 2500 3150 31.5 55 79 109 C/O indication Energy storage indication Manual opening Manual closing Manual energy storage Counter 838 367 275 275 852 885 772 345 310 135 458 737 815 825 Remove pole A direct O/C indication Energy indication Counter Manual opening Manual closing Manual energy storage depth 20 depth 24 Forward travel of handcart: 300mm Fig.2 Outline of VHY1-24 model handcart type Circuit Breaker (Rated current 1600A) 210(275) 210(275) 445 520(720) 588(774) 4-M12 436 4545 20 275 411 12-M10 6-M12 310282 A Forward travel of handcart: 300mm Fig.1 Outline diagram of VCB1-24 model handcart type Circuit Breaker (Rated current ≥1600A) Fig.3 Outline diagram of VHY1-24 model Fixed type Circuit Breaker (Rated current 1250A) Rated current (A) Rated short-circuit breaking current (kA) Dim. of matched fixed contact (mm) 1600 2000 2500 3150 31.5 55 79 109 C/O indication Energy storage indication Manual opening Manual closing Manual energy storage Counter 838 367 275 275 852 885 772 345 310 135 458 737 815 825 Remove pole A direct O/C indication Energy indication Counter Manual opening Manual closing Manual energy storage depth 20 depth 24 Forward travel of handcart: 300mm Fig.2 Outline of VHY1-24 model handcart type Circuit Breaker (Rated current 1600A) 210(275) 210(275) 445 520(720) 588(774) 4-M12 436 4545 20 275 411 12-M10 6-M12 310282 A

Greegoo Electric 5.2008 http://www.greegoo.com Vacuum Circuit Breaker 1-4 Indoor Vacuum Circuit Breaker Fig.3 Outline diagram of VHY1-24 model Fixed type Circuit Breaker (Rated current 1250A) Rated current (A) Rated short-circuit breaking current (kA) Dim. of matched fixed contact (mm) 1600 2000 2500 3150 31.5 55 79 109 C/O indication Energy storage indication Manual opening Manual closing Manual energy storage Counter 838 367 275 275 852 885 772 345 310 135 458 737 815 825 Remove pole A direct O/C indication Energy indication Counter Manual opening Manual closing Manual energy storage depth 20 depth 24 Forward travel of handcart: 300mm Fig.2 Outline of VHY1-24 model handcart type Circuit Breaker (Rated current 1600A) 210(275) 210(275) 445 520(720) 588(774) 4-M12 436 4545 20 275 411 12-M10 6-M12 310282 A Fig.3 Outline diagram of VCB1-24 model Fixed type Circuit Breaker (Rated current ≤1250A) Remove pole A direct Remarks: H for 1600A and 2000A is 639mm, H for 2500A and 3150A is 728mm.

3 NORMAL SERVICE CONDITIONS

PRODUCT STRUCTURE AND FUNCTIONS

7.1 General structure of circuit breaker

The circuit breaker is designed in a front-rear(operating mechanism-pole) arrangement structure, and main circuit of each phase are directly solid sealed inside the epoxy resin through the special mould and APG process, to be a pole with compact structure and beautiful appearance.

7.2 Vacuum interrupter and solid sealed

main circuit are directly solid sealed inside the epoxy resin through APG process without any other fastening pieces. This not only

7.3 Structure of operating mechanism

The operating mechanism is designed in a plane layout structure, and has the functions of manual energy storage an d electrical energy storage. It is inside the mechanism box in front of interrupt er and the mechanism box also serves as the frame of operating mechanism. The mechanism box is divided into five assembly spaces by the middle partition plates, which respectively contain energy storage part, transmission part, trip part, buf fer part and interlocking part. T he operating mechanism and interrupter are arranged into a front-rear unified whole, namely , integral arrangement. This structure makes the operating performance of operating mechanism further tally with the required opening/closing performance of interrupter, simplifies the unnecessary intermediate transmission links, reduces three poles are directly assembled on the frame. The interrupter and all the parts of poles The circuit breaker adopts TD porcelain vacuum interrupter, whose contacts are made of chromiu m copper and are in cup-shape longitudinal magnetic field structure. The contacts have long electrical life as a result of low electric wear rate, have stable insulation strength as result of high withstand voltage level, can quickly recover after arc-extinguish, and has low damming level and strong breaking capacity. The circuit breaker adopts solid seal technology, namely , the miniaturized low-resistance interrupter and all the parts of simplifies the assembly process of poles, prevents the connecting bolts of the conductive circuit from loosening due to vibration during transportation and improves the reliability as well, but also protects the surface of interrupter from the external mechanical force and external environment (e.g.: dust, moisture, small animal), to further improve t he distribution status of electric field of the poles. the energy consumption and noise, so as to make the operating performance of circuit breaker be more reliable. The circuit breaker can be installed inside both the handcart type switchgear and the fixed type one.

7.4 Functions

Fig.4 Outline diagram of VHY1-24 model Fixed type Circuit Breaker (Rated current 1600A) Remarks: H for 1600A and 2000A is 639mm, H for 2500A and 3150A is 728mm. Fig.4 Outline diagram of VCB1-24 model Fixed type Circuit Breaker (Rated current ≥1600A) Product Structure And Functions ■ General structure of circuit breaker The circuit breaker is designed in a front-rear(operating mechanism- pole) arrangement structure, and three poles are directly assembled on the frame. The interrupter and all the parts of main circuit of each phase are directly solid sealed inside the epoxy resin through the special mould and APG process, to be a pole with compact structure and beautiful appearance. ■ Vacuum interrupter and solid sealed poles The circuit breaker adopts TD porcelain vacuum interrupter, whose contacts are made of chromiu m copper and are in cup-shape longitudinal magnetic field structure. The contacts have long electrica l life as a result of low elect ric wear r ate, have stable insulation strength as result of high withstand voltage level, can quickly recover after ar c-exting uish, and has low damming level and strong breaking capacity. The circuit breaker adopts solid seal technology, namely, the miniaturized low-resistance interrupter and all the parts of main circuit are directly solid sealed inside the epoxy resin through APG process without any other fastening pieces. This not only simplifies the assembly process of poles, prevents the connecting bolts of the conductive circuit f rom loosening due to vibration during transportation and improves the reliability as well, but also protects the surface of interrupter from the external mechanical force and external environment (e.g.: dust, moisture, small animal), to further improve t he distr ibution status of electric field of the poles. ■ Structure of operating mechanism The operating mechanism is designed in a plane layout structure, and has the functions of manual energy storage and electrical energy storage. It is inside the mechanism box in front of interrupt er and the mechanism box also se rves as the frame of operating mechanism. The mechanism box is divided into five assembly spaces by the middle partition plates, which respectively contain energy storage part, transmission

Greegoo Electric 5.2008 http://www.greegoo.com Indoor Vacuum Circuit Breaker part, trip part, buffer part and interlocking part. The operating mechanism and interrupter are arranged into a front-rear unified whole, namely, integral arrangement. This structure makes the operating performance of operating mechanism further tally with the required opening/closing performance of interrupter, simplifies the unnecessary intermediate transmission links, reduces the energy consumption and noise, so as to make the operating performance of circuit breaker be more reliable. The circuit breaker can be installed inside both the handcart type switchgear and the fixed type one. ■ Functions About the operating schematic of operating mechanism, please refer to Fig.5 & Fig. 6. 4567 Fig.5 Operation schematic of operating mechanism Fig.6 Operation schematic of operating mechanism 1. Changeover micro switch in energy-stored state 2. Energy storage transmission chain wheel 3. Energy storage transmission wheel 4. Energy storage holding detent 5. Closing spring 6. Manual energy storage worm rod 7. Manual energy storage transmission worm gear 8. Electrical transmission chain wheel 9. Energy storage deceleration & motor 10. Interlocking transmission bending plate 11. Transmission chain 12. Locking electromagnet 13. Locking iron core of locking electromagnet 14. Energy storage holding shaft 15. Transmission cam shaft 16. Cam 17. Energy storage indication 1. Heat dissipation bracket 2. Solid sealed pole 3. Insulation pulling rod 4. Transmission crutch arm 5. Opening spring 6. Transmission connecting plate 7. Transmission crutch arm of main shaft 8. Opening holding detent 9. Opening tripper 10. Connecting plate 11. Manual opening push rod 12. Cam 13. Connecting plate of O/C indication

Greegoo Electric 5.2008 http://www.greegoo.com Vacuum Circuit Breaker Indoor Vacuum Circuit Breaker Arc extinguishing principle The combined vacuum interrupter has extreme vacuum degree. When the movable, fixed contacts open with electricity under the effect of operating mechanism, vacuum arc will be generated between the contacts. Meanwhile, due to the special structure of contacts, a proper longitudinal magnetic field will also be generated between the contacts to keep vacuum arc diffusion type, accordingly cause the electric arc to evenly distribute on the contact surface and burn as well, and maintain low electric arc voltage. When current is naturally below zero, the residual ion, electron and metal steam are compounded or condensed on the contact surface and shield cover in few micro-seconds, and the dielectric insulation strength of the gap of interrupter will quickly recover, then the electric arc is extinguished, and opening operation is realized. Because the circuit breaker adopts the longitudinal magnetic field to control the vacuum electric arc, it has strong and stable breaking capability. Secondary Wiring & Principle Diagram About wiring & principle diagram of circuit breaker, please refer to Fig.8 & Fig. 15. Debugging And Operation The debugging and operation of circuit breaker shall be done by the professional person who has receiveD special training and knows the performance of circuit breaker well, and the corresponding protection and prevention measures shall be considered during working process. 1 Preparation work (Before the primary circuit is electrified.)

1.1 Check if the circuit breaker is damaged;

1.2 Clear the dirty, special for the dirty on the surface of insulators;

1.3 Check the wiring of the primary, secondary circuits and the connection with the earthing body.

1.4 Carry out manual energy storage operation and manual opening/closing operation, and observe the

corresponding indications at the same time. (Attentions: If the circuit breaker is equipped wi th the c losing locking device, please add the auxiliary power supply to the locking device.) 1.5 Remove the dust cover of insulation drums except the exceptional ones. Please pay attention to the marks on the dust cover.

2 Operation of circuit breaker

2.1 Energy storage of closing spring

a. Manual energy storage: Insert the special energy storage handle into the hole (vi z. No.7 in Fig.1 6), rotate about 20 circles until the energy storage indication points at 'energy stored' (see Fig. 7), that can be seen through the observation window of energy storage indication (viz. No.5 in Fig.16). b. Electrical energy storage: Electrify the motor and energy storage operation will be automatically done, the power supply of motor will be automatically cut off once the spring of mechanism is in the right position.

2.2 Closing and opening operation

7.4.2 Arc extinguishing principle

The combined vacuum interrupter has extreme vacuum degree. When the movable, fixed contacts open with electricity under the effect of operating mechanism, vacuum arc will be generated between the contacts. Meanwhile, due to the special structure of contacts, a proper longitudinal magnetic field will also be generated between the contacts to keep vacuum arc diffusion type, accordingly cause the electric arc to evenly distribute on the contact surface and burn as well, and maintain low electric arc voltage. When current is naturally below zero, the residual ion, electron and metal steam are compounded or condensed on the contact surface and shield cover in few micro-seconds, and the dielectric insulation strength of the gap of interrupter will quickly recover, then the electric arc is extinguished, and opening operation is realized. Because the circuit breaker adopts the longitudinal magnetic field to control the vacuum electric arc, it has strong and stable breaking capability. The debugging and operation of circuit breaker shall be done by the professional person who has receiveD special training and knows the performance of circuit breaker well, and the corresponding protection and prevention measures shall be considered during working process. 9.1 Preparation work (Before the primary circuit is electrified.)

9.1.1 Check if the circuit breaker is damaged;

9.1.2 Clear the dirty, special for the dirty on the surface of insulators;

9.1.3 Check the wiring of the primary, secondary circuits and the connection with the earthing body . 9.1.4 Carry out manual energy storage operation and manual opening/closing operation, and observe the corresponding indications at the same time. (ATTENTIONS: If the circuit breaker is equipped with the closing locking device, please add the auxiliary power supply to the locking device.) 9.1.5 Remove the dust cover of insulation drums except the exceptional ones. Please pay attention to the marks on the dust cover.

9.2 Operation of circuit breaker

9.2.1 Energy storage of closing spring

a. Manual energy storage: Insert the special energy storage handle into the hole (viz. No.7 in Fig.16), rotate about 20 circles until the energy storage indication points at 'energy stored' (see Fig.7), that can be seen through the observation window of energy storage indication (viz. No.5 in Fig.16). b. Electrical energy storage: Electrify the motor and energy storage operation will be automatically done, the power supply of motor will be automatically cut off once the spring of mechanism is in the right position.

9.2.2 Closing and opening operation

SECONDARY WIRING & PRINCIPLE DIAGRAM About wiring & principle diagram of circuit breaker, please refer to Fig.8 & Fig. 15. Energy stored Energy non-stored Fig.7 State indication of energy storage

Greegoo Electric 5.2008 http://www.greegoo.com Indoor Vacuum Circuit Breaker Fig.8 Secondary wiring diagram JX Y7-Y8-Y9 V HQ TQ M S1.S2.S3.S4 HK Terminal block Over-current electromagnet Rectifying element Closing tripper Opening tripper Energy storage motor Micro switch Aux. switch of main contact Optional of VCB1-24 model fixed type Vacuum Circuit Breaker without locking electromagnet

Greegoo Electric 5.2008 http://www.greegoo.com Vacuum Circuit Breaker Indoor Vacuum Circuit Breaker Y7-Y9 V HQ TQ M S1.S2.S3.S4 HK Over-current electromagnet Rectifying element Closing tripper Opening tripper Energy storage motor Micro switch Aux. switch of main contact Optional Remarks: L shall be short connected under AC110V, DC110V. Fig.9 Secondary principle diagram of VCB1-24 model fixed type Vacuum Circuit Breaker without locking electromagnet

Greegoo Electric 5.2008 http://www.greegoo.com Indoor Vacuum Circuit Breaker Remarks: L shall be short connected under AC110V, DC110V. Fig.10 Secondary principle diagram of VCB 1-24modelfixedtypeVacuumCircuitBreakerwithlockingelectromagnet 9 8 7 6 5 4 3 2 1 S5 Y1 Y7-Y9 V HQTQM S1.S2.S3.S4 HK Limit switch Locking electr omagnet Over-current electromagnet Rectifying element Closing tripperOpening tripper Energy stor age motor Micro switch Aux. switch of main contact OptionalOptional

Greegoo Electric 5.2008 http://www.greegoo.com Vacuum Circuit Breaker 1-10 Indoor Vacuum Circuit Breaker JX Y7-Y8-Y9 V HQ TQ M S1.S2.S3.S4 HK Limit switch Locking electromagnet Terminal block Over-current electromagnet Rectifying element Closing tripper Opening tripper Energy storage motor Micro switch Aux. switch of main contact Optional Optional Fig.11 Secondary wiring diagram of VCB1-24 model fixed type Vacuum Circuit Breaker with locking electromagnet

Greegoo Electric 5.2008 http://www.greegoo.com 1-11 Indoor Vacuum Circuit Breaker Fig.12 Secondary princ iple diagram of 10 9 8 7 6 5 4 3 2 1 CZ S9 S8 Y7-Y9 V HQTQM S1.S2.S3.S4 HK Aux. switch in w orking position Over-current electromagnetAux. switch of main contactAux. switch in test position Ener gy storage motor Rectifying element Aerial socket Closing tr ipper Opening tripperMicro switch Optional Remarks:L shall be short connectedunder AC110V, DC110V. VCB 1-24modelhandcarttypeVacuumCircuitBreakerwithoutlockingelectromagnet

Greegoo Electric 5.2008 http://www.greegoo.com Vacuum Circuit Breaker 1-12 Indoor Vacuum Circuit Breaker CZ Y7-Y8-Y9 V HQ TQ M S1.S2.S3.S4 HK Aerial socket Aux. switch on working position Aux. switch on test position Over-current electromagnet Rectifying element Closing tripper Opening tripper Energy storage motor Micro switch Aux. switch of main contact Optional Fig.13 Secondary wiring diagram HK V 13 JX CZ M TQ HQ 1 2 2-B22-B1 M 1 2 2-B62-B5 TQ 1 2 2-B97-14 HQ 1 2 3-373-2 Y7 1 2 3-483-27 Y8 1 2 3-433-44 Y9 2-A2 2-A1 12-1 3-24 3-26 3-35 3-25 1-11 3-34 3-36 10-14 13-11 10-24 13-19 10-44 13-2 10-13 13-5 13-17 13-7 13-1 13-16 9-12 9-22 13-14 13-13 9-42 13-4 9-11 13-15 13-6 13-9 13-8 13-3 9-51 9-52 10-53 10-54 9-21 10-23 9-41 10-43 10-33 9-22 10-44 10-34 10-13 10-14 9-31 9-32 3-58 3-57 3-56 3-55 3-50 3-51 3-53 3-54 3-16 1-61 3-52 1-74 3-14 2-A4 1-72 1-71 2-A7 3-17 3-13 3-15 1-61 3-11 3-30 3-6 3-9 7-13 3-8 3-23 3-28 3-46 1-53 13-11 3-39 13-19 3-20 2-A8 3-7 3-3 3-5 3-21 2-A6 13-14 3-19 2-A9 3-18 3-33 3-38 3-12 3-22 13-17 3-29 3-49 4-1 4-2 2-B7 2-B8 11-1 11-2 2-B3 2-B4 12-2 6-22 5-22 3-4 13-16 3-31 3-41 1-64 1-13 1-14 1-12 B1 B2B3B4B5 B6B7B8 B9B10B11 B12B13 A1 A2A3A4A5 A6A7A8A9A10A11 A12A13 JX 3-40 1-34 1-44 1-24 1-83 1-53 1-33 1-43 1-23 1-84 1-54 1-31 6-21 15-1 1-72 2-A5 1-32 5-21 14-2 1-71 2-A6 16-2 1-82 JX-6 JX-7 JX-4 JX-2 14-1 2-A3 1-73 1-21 1-52 JX-15 JX-9 1-22 1-81 1-62 8-14 8-22 1-41 1-63 8-13 8-21 1-42 3-1 16-1 1-51 15-2 JX-5 JX-13 JX-8 JX-3 JX-1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 of VCB1-24 model handcart type Vacuum Circuit Breaker without locking electromagnet

Greegoo Electric 5.2008 http://www.greegoo.com 1-1 Indoor Vacuum Circuit Breaker Fig.14 Secondary princ iple diagram th lock ing electromagnet 12 11 10 9 8 7 6 5 4 3 2 1 S5 Y1 CZS9 S8 Y7-Y9 V HQTQM S1.S2.S3.S4 HK Limit switch Locking electromagnet Aerial socket Aux. switch on working positionAux. switch on test positionOver-current electromagnet Rectifying element Closing tripperOpening tripper Energy storage motor Micr o switch Aux. switch of main contact OptionalOptional Remarks:L shall be short connectedunder AC110V, DC110V. 1-24mode lhandcarttyp eVacuumCi rcuitBreaker wi of VCB

Greegoo Electric 5.2008 http://www.greegoo.com Vacuum Circuit Breaker 1-14 Indoor Vacuum Circuit Breaker CZ Y7-Y8-Y9 V HQ TQ M S1.S2.S3.S4 HK Limit switch Locking electromagnet Aerial socket Aux. switch on working position Aux. switch on test position Over-current electromagnet Rectifying element Closing tripper Opening tripper Energy storage motor Micro switch Aux. switch of main contact Optional Fig.15 Secondary wiring diagram HK V 13 JX CZ M TQ HQ 1 2 2-B22-B1 M 1 2 2-B62-B5 TQ 1 2 2-B918-3 HQ 1 2 3-373-2 Y7 1 2 3-483-27 Y8 1 2 3-433-44 Y9 2-A2 2-A1 18-1 3-24 3-26 3-35 3-25 1-11 3-34 3-36 10-14 13-11 10-24 13-19 10-44 13-2 10-13 13-5 13-17 13-7 13-1 13-16 9-12 9-22 13-14 13-13 9-42 13-4 9-11 13-15 13-6 13-9 13-8 13-3 9-51 9-52 10-53 10-54 9-21 10-23 9-41 10-43 10-33 9-22 10-44 10-34 10-13 10-14 9-31 9-32 3-58 3-57 3-56 3-55 3-50 3-51 3-53 3-54 3-16 1-61 3-52 1-74 3-14 2-A4 1-72 1-71 2-A7 3-17 3-13 3-15 1-61 3-11 3-30 3-6 3-9 7-13 3-8 3-23 3-28 3-46 1-53 13-11 3-39 13-19 3-20 2-A8 3-7 3-3 3-5 3-21 2-A6 13-14 3-19 2-A9 3-18 3-33 3-38 3-12 3-22 13-17 3-29 2-A10 4-1 4-2 2-B7 2-B8 11-1 11-2 2-B3 2-B4 12-2 17-2 17-1 6-22 5-22 3-4 13-16 3-31 3-41 1-64 1-13 1-14 1-12 1-82 3-49 B1B2B3B4B5B6B7B8B9B10B11 B12B13 A1A2A3A4A5A6A7A8A9A10A11 A12A13 JX 3-40 1-34 1-44 1-24 1-83 1-53 1-33 1-43 1-23 1-84 1-54 1-31 6-21 15-1 1-72 2-A5 1-32 5-21 14-2 1-71 2-A6 16-2 2-A11 JX-6 JX-7 JX-4 JX-2 14-1 2-A3 1-73 1-21 1-52 JX-15 JX-9 1-22 1-81 1-62 8-14 8-22 1-41 1-63 8-13 8-21 1-42 3-1 16-1 1-51 15-2 JX-5 JX-13 JX-8 JX-3 JX-1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 1 2 2-B102-B11 Y1 31 12-17-14 of VCB1-24 model handcart type Vacuum Circuit Breaker with locking electromagnet

Greegoo Electric 5.2008 http://www.greegoo.com 1-1 Indoor Vacuum Circuit Breaker b. Opening operation: Manual operate the opening button (viz. No.4 in Fig.16) or the electric control components. The counter automatically adds one after an opening operation. The counter (viz. No.3 in Fig.16) can be seen through the observation window on the name plate. Handcart type Fixed type Fig.16 Indication diagram of name plate 1. Secondary aerial socket 2. Opening indication 3. Counter 4. Manual opening button 5. Energy storage indication 6. Manual closing button 7. Plug hole for manual energy storage 8. Chasis truck USAGE OF EACH FUNCTION UNIT AND REALIZATION MEANS

10.1 Coordination process with cubicle

10.1.1 Push the circuit breaker into the cubicle by the special handcart. When the locking plate of the chasis truck and the cubicle enter into coordination state, the circuit breaker reaches t he testing position, namely, the secondary socket is connected and the primary contact is open. Now opening/closing operation can be done. clockwise about 20 circles. When a clatter sound appears from the interior of handcart, it means the circuit breaker reaches the working position, meanwhile, the indication light on the cubicle shines. (ATTENTION: The force should be even during the process for fear that the position information of interlocking mechanism is damaged due to the severe force. 10.1.3 Opening and closing operation can be done only in the working or testing position, and forbid moving the handcart after closing. There is a mechanical interlocking device on the mechanism to ensure the circuit breaker can't be moved in the closing state.

10.2 Closing locking

The circuit breaker can be combined with the closing locking device according to the customer's requirement, namely, when the secondary power supply is off, only the closing operation can be done and the opening operation can not be done.

10.3 Internal 'anti-bounce' protection

The interlocking device is installed inside the circuit breaker to prevent the circuit breaker from bouncing several times.

10.4 Over-current protection

The over-current trip of the mechanism is connected from the secondary side of CT, and its quantity can be selected from one to three as required. Usage Of Each Function Unit And Realization Means ■ Coordination process with cubicle 1. Push the circuit breaker into the cubicle by the special handcart. When the locking plate of the chasis truck and the cubicle enter into coordination state, the circuit breaker reaches the testing position, namely, the secondary socket is connected and the primary contact is open. Now opening/closing operation can be done. 2. Insert the special pushing handle into the square-head hole on the chasis truck (viz. No. 8 in Fig .16), an d rotate clockwise about 20 circles. When a clatter sound appears from the interior of handcart, it means the circuit breaker reaches the working position, meanwhile, the indication light on the cubicle shines. (ATTENTION: The force should be even during the process for fear that the position information of interlocking mechanism is damaged due to the severe force. 3. Opening and closing operation can be done only in the working or testing position, and forbid moving the handcart after closing. There is a mechanical interlocking device on the mechanism to ensure the circuit breaker can't be moved in the closing state. ■ Closing locking The circuit breaker can be combined with the closing locking device according to the customer's requirement, namely, when the secondary power supply is off, only the closing operation can be done and the opening operation can not be done. ■ Internal 'anti-bounce' protection The interlocking device is installed inside the circuit breaker to prevent the circuit breaker from bouncing several times. ■ Over-current protection The over-current trip of the mechanism is connected from the secondary side of CT, and its quantity can be selected from one to three as required. Transportation And Storage ■ Transportation The circuit breaker shall be individually packed and fixed inside the frame with the corresponding protection measures. There are two lifting holes with mark for lifting the circuit breaker respectively on the left and right side plates of the enclosure of operating mechanism. Attention: Lifting tackle should hook the lifting position of circuit breaker and avoid impact and strike during lifting process.

Greegoo Electric 5.2008 http://www.greegoo.com Vacuum Circuit Breaker 1-1 Indoor Vacuum Circuit Breaker ■ Storage Before it is put into operation, the circuit breaker shall be stored indoor, where is dry, ventilated and without dust. At the same time, it shall be in opening position, and the closing spring of mechanism is in energy non- stored state. Maintenance In order to satisfy the reliable operation of circuit breaker, the maintenance interval and maintenance scope lie on working environment, operation times, operating time and breaking time of short-circuit breaking current, etc. The maintenance should be done by the professional person who has received special training and knows the performance of circuit breaker well. The user can open the panel and do some appropriate maintenance ( eg. Lubricating and tightening the fastener, etc.). Violationsto the circuit breaker is forbidden. Attached Documents Ordering Instruction The user shall indicate the following information when ordering: ■ Model, rated current and rated short-circuit breaking current, quantity; ■ Rated voltage; ■ The quantity of the optional pieces stipulated in the secondary principle diagram; ■ Rated operating voltage; ■ Name and quantity of spare parts; ■ Other special requirements.