3AP-Type

High Voltage

Power Transmission and Distribution

PTD H 365/Bayer 040113-13AP_Prodrange.ppt

Product Range High Voltage Circuit Breakers for Rated Voltages 72.5 kV up to 420 kV

3AP1FG 72.5 kV

3AP1FG 145 kV

3AP1 FI 300 kV

3AP2 FI 420 kV

3AP-Type

High Voltage

Power Transmission and Distribution

PTD H 365/Bayer 040113-23AP_Prodrange.ppt

3AP Technical Data

50/60

2500/3150/4000

VDE, IEC

72.5/145/170/245/300

31.5/40/50

82/100/125

3

O - 0.3 s - CO - 3 min - CO (IEC)CO - 15 s - CO (ANSI)

– 30 to +55

Rated voltage [kV]Rated frequency [Hz]Rated current [A]

Rated short-circuit breaking current

[kA]

Transient recovery voltage (TRV)under terminal fault conditions acc. toRated making current[kA]Rated short-circuit duration [s]

Operating sequence

Operating temperatures[°C]

Type 3AP1 3AP2

362/420

50

125

5000

3AP-Type

High Voltage

Power Transmission and Distribution

PTD H 365/Bayer 040113-33AP_Prodrange.ppt

Product RangeHigh-Voltage Circuit-Breakers

63

50

40

31.5

25

0

Rated short-circuit breaking current [kA]

72.5 123 145 300 362 420 550 800Rated voltage [kV]

170 245

3AP2 FI3AP1 FI3AP1 FG

3AP-Type

High Voltage

Power Transmission and Distribution

PTD H 365/Bayer 040113-43AP_Prodrange.ppt

Technical DataHigh-Voltage Circuit-Breakers

Rated voltage [kV]

Rated power frequencywithstand voltage (1 min) [kV]

Rated lightning impulse with-stand voltage (1.2/50 µs) [kV]

Rated switching impulse with-stand voltage (250/2500 µs) [kV]

Rated current up to [A]

Rated breaking current [kA]

Type

72,5

4000

40

140

325

-

145

4000

40

275

650

-

245

4000

50

460

1050

-

420

5000

50

610

1425

1050

3AP23AP1

300

4000

40

460

1050

850

170

4000

50

325

750

-

3AP-Type

High Voltage

Power Transmission and Distribution

PTD H 365/Bayer 040113-53AP_Prodrange.ppt

3AP Dielectric Data

Rated power frequency withstand voltage [kV]

Rated lightning impulsewithstand voltage[kV] (1.2/50 µs)Clearance [mm]

Min. creepage distance [mm]

Type

Rated Voltage [kV]

phase/earthacross open breakerbetween phasesphase/earthacross open breaker

phase/earthacross open breakerbetween phases

phase/earthacross open breakerbetween phases

Specif. creepage distance [mm] phase/earth

125012001360

275

1175

34002x16003600

3AP1 3AP2

460

90509050

220019002385

700700722

140 460

14572.5 245 300 362

325 650 1050 1050

520

220022003000

22482248

36253625

61506125

76268575

150014001510

325

170

750

42504250

1425

34002x16003600

1037510500

420

610

28.731.0 25.0 25.0 25.425.0 24.7

3AP-Type

High Voltage

Power Transmission and Distribution

PTD H 365/Bayer 040113-63AP_Prodrange.ppt

3AP1Operating Times

Tripping device

Closing timeOpening timeArcing timeBreak timeMinimum command durationClose-open timeDead time

[ms] [ms] [ms] [ms]

[ms] [ms] [ms]

Rated Voltage [kV]

52±531±31549

8070±10300

normal

72.5

normal/fast

300

56±635±42159

8077±5276

49±526±32150

8077±5276

normal/fast

245

65±736±41959

8080±10281

56±727±31949

8080±10281

normal/fast

145

57±630±42357

8030±10277

48±524±42349

8030±10277

normal/fast

170

58±636±41757

8040±10283

49±527±41747

8040±10283

3AP-Type

High Voltage

Power Transmission and Distribution

PTD H 365/Bayer 040113-73AP_Prodrange.ppt

3AP2Operating Times

Tripping device normal/fast

Closing time[ms]Opening time[ms] Arcing time[ms] Break time[ms] Minimum command duration

[ms] Close-open time[ms] Dead time[ms]

420

65±7 37±4 19 6080

77±8281

56±628±3 19 5080

77±8 281

Rated Voltage [kV]

3AP-Type

High Voltage

Power Transmission and Distribution

PTD H 365/Bayer 040113-83AP_Prodrange.ppt

3APArc-Quenching Medium SF6

Values in gauge pressure at 20°C

Type

Rated Voltage [kV]

Amount of gas per breaker[kg]

Volume per breaker [l]

Filter material per pole [kg]

Nominal Pressure [MPa]Alarm "Loss of SF6” [MPa] General lockout SF6 [MPa]Minimum gas pressure formechanical operation [MPa]

398482.5

92060.75

0.600.520.50

0.30

3AP1 3AP2

170 42072.54

870.3

145

81740.5

0.600.520.50

0.30

245

184020.75

300

295450.75

0.700.620.60

0.30

3AP-Type

High Voltage

Power Transmission and Distribution

PTD H 365/Bayer 040113-93AP_Prodrange.ppt

Self-Compression Interrupter UnitThe Quenching Principle

Closed Position Open PositionOpening

Main contact open

Opening Arc contact open

Heat cylinder

Base

Arc contact

Main contact

Nozzle

Contact support

3AP-Type

High Voltage

Power Transmission and Distribution

PTD H 365/Bayer 040113-103AP_Prodrange.ppt

Dynamic Self-Compression Interrupter UnitThe Quenching Principle

Closed Position Open PositionMain contact open Arc contact open

Heat cylinder

Valve unit

Counter moving arcing contact

Contact finger

Arc.quenching nozzle

Coupler frame

Cross-arm

Bolt

Lever

Driver Bolt

Counter lever

Control bar

3AP-Type

High Voltage

Power Transmission and Distribution

PTD H 365/Bayer 040113-113AP_Prodrange.ppt

Self-Compression Interrupter UnitThe quenching Principle

3AP-Type

High Voltage

Power Transmission and Distribution

PTD H 365/Bayer 040113-123AP_Prodrange.ppt

Operating Mechanism 3AP1 Stored Energy Spring Mechanism

Charging motor

Closing spring

Opening spring

Coupling linkage

Charging gear

Closing coil

Opening coil

Charging shaft

3AP-Type

High Voltage

Power Transmission and Distribution

PTD H 365/Bayer 040113-133AP_Prodrange.ppt

Operating Mechanism FA2/FA4Stored Energy Spring Mechanism

Charging motor

Closing spring

Opening spring

Coupling linkage

Charging gear

Closing coil

Opening coil

Charging shaft

3AP-Type

High Voltage

Power Transmission and Distribution

PTD H 365/Bayer 040113-143AP_Prodrange.ppt

Operating MechanismStored Energy Spring Mechanism

3AP-Type

High Voltage

Power Transmission and Distribution

PTD H 365/Bayer 040113-153AP_Prodrange.ppt

3AP Circuit-BreakerStrategy in Modular Design

Operating

mechanism• Robust & simple• Low operating

forces• Low wear and tear• Low load transfer

ontothe foundation

• High accessibility

General• Uniform basic

components• Production of key

components at one location

• Longevity• High availability• High reliability

Interrupter units• Low demand of

operating forces• Low wear and

tear• High breaking

capacity

FA1

72,5 kVOperation

FA4

420 kV

Three-PoleThree-PoleThree-PoleThree-Pole

FA2

145 kV

FA2

245 kV

FA4

FA2

300 kV

FA2

Static Self-Compression

Dynamic Self-Compression

Interrupter Unit 170 kV

FA2

FA2

3AP-Type

High Voltage

Power Transmission and Distribution

PTD H 365/Bayer 040113-163AP_Prodrange.ppt

3AP-Type

High Voltage

Power Transmission and Distribution

PTD H 365/Bayer 040113-173AP_Prodrange.ppt