abb ltb 170d manual

SHEET NO.: TD01

CLIENT: CROWN AGENTS AND ZETDC CONTRACT NO.:EPIRP/003CONTRACTOR: CHINT ELECTRIC CO., LTD. CHINT PROJECT NO.: ZW.EPIRP/003TECHNICAL DOCUMENT NO.:COMM-GN-GN-SP-1210 REV. A04

Description Unit 132kVItem Particulars Unit Guar. Fig

2 132kV SF6 Circuit Breaker2.1 Manufacturer ABB Beijing

Type of Breaker SF6Makers Designation LTB170D1/B-3POperating Characteristics BLK222

2.2 Type of Operating System (hydraulic or spring) Spring2.3 Rated Voltage kV 1702.4 Maximum Service Voltage kV 1702.5 Rated Frequency Hz 502.6 Rated Continuous Current A 31502.7

One minute power frequency withstand voltage, dry and wet: - to earth kV rms 345 - across open breaker pole kV rms 345

2.8 Impulse withstand voltage - to earth kV peak 750 - across open breaker pole kV peak 750

2.9 Breaking capacity at rated voltage -symmetrical kA 40 - asymmetrical kA 45

2.10 Making capacity kA 1002.11 Permissible 1 second short-time current kV rms 40/3s2.12 Dynamic short-time current kV peak 1002.13 Number of main breaks per pole 12.14 Dead time (for rapid auto-reclosing) interval of time between

final arc extinction in all poles on the opening operation andthe first re-establishment of current in any pole in thesubsequent closing operation msec

300

2.15 Specific creepage distance across insulators mm/kV >312.16 Auxiliary Switch

- Number of free NO contacts 8 - Number of free NC contacts 8

2.17 Motor operated spring system - Rated voltage V AC 230

2.18 Duty Cycle (where O-t-CO-t-CO): t tStored Switching Sequence

smin

0.33

O-CO2.19 Opening time (until separation of the arcing contacts)

(a) without current ms 20-25(b) at 100% rated breaking current ms 20-25

TECHNICAL GUARANTEES,OUTDOOR SWITCHGEAR

SHEET NO.: TD02

CLIENT: CROWN AGENTS AND ZETDC CONTRACT NO.:EPIRP/003CONTRACTOR: CHINT ELECTRIC CO., LTD. CHINT PROJECT NO.: ZW.EPIRP/003TECHNICAL DOCUMENT NO.:COMM-GN-GN-SP-1210 REV. A04

Description Unit 132kVItem Particulars Unit Guar. Fig

TECHNICAL GUARANTEES,OUTDOOR SWITCHGEAR

2.20 Arc duration(a) maximum on short-circuit duty ms 22.1(b) test duty on which occurring T60

2.21 Maximum total break time from trip initiation to final arcextinction

ms40

2.22 Maximum time from close initiation to contact touch ms 402.23 First-pole-to-clear factor

(a) At 100% breaking capacity 1.5(b) At 10% breaking capacity 1.5

2.24 Maximum voltage appearing across one breaking unit (ofmultibreak poles)

%100% one break only

2.25 Maximum pressure rise in circuit- breaker due to making orbreaking current

bar8

2.26 Voltage drop across terminals of one pole at rated normalcurrent

mV126

2.27 Duty cycle for out-of-phase switching C-O-O-O2.28 Out-of-phase breaking current

(a) At 2.0 times rated voltage kA 10(b) At 2.5 times rated voltage kA 10

2.29 Maximum switching over-voltage when breaking line chargingcurrents of up to 50 A

kV249

2.30 Number of switching operations at rated breaking capacitybefore contact maintenance at rated short circuit current 16

2.31 Temperature rise of contacts at normal rated current, breakermounted as in service

65

2.32 Length of each breaking gap mm 682.33 Stroke of moving contacts/break mm 1102.34 Type of main contacts COPPER2.35 Type of arcing contacts Copper-tungsten alloy2.36 Type of arc control device COPPER2.37 Method of closing (e.g. spring, hydraulic, pneumatic etc.) Spring2.38 Method of tripping (e.g. spring, hydraulic, pneumatic etc.) Spring2.39 Power consumption for :-

(a) 3-pole closing W 230(b) 3-pole opening W 230

2.40 Number of closing coils 12.41 Number of tripping coils 22.42 Total load of heaters per 3 poles W 2102.43 Temperature rise above ambient

(a) Max. at rated normal current(b) Point where maximum occurs

65

12345678TDS.pdfMV Switchgear

132kV CIRCUIT BREAKER - ALL.pdf12MV Switchgear

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abb ltb 170d manual