USER`S GUIDE High Speed DC Circuit Breaker TYPE ... - Biziz

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2.4 Operation 3. Inspection and Maintenance Maximum operating voltage and current ratings are as shown on the breaker nameplate. During continuous operation, it must be loaded with its rated operating current at maximum. Load currents in excess of breaker nameplate rating are allowable for brief periods. Refer to the short time currents listed in Table 1a/1b. Do not exceed the rated operating voltage shown on the breaker nameplate. The drive and auxiliary trips function within the specified control voltage range. The auxiliary trips must be loaded with the values listed in Table 2a at maximum. Prior to carrying out maintenance, inspection or checks on the circuit breaker, the breaker must be open, the connections on both sides must be grounded, the circuit breaker must be switched off and the control plugs removed. Non-compliance with these warnings can result in death, severe physical damage and extensive damage to equipment. Metric tools are needed for all screws. 3.1 General Regular inspection and maintenance must be carried out to ensure the proper functioning of the breaker and in order to achieve a long working life. The intervals at which inspections must be carried out may be determined by evaluating the breaker’s duty cycle. Table 3a provides an overview of checks to be carried out and lists the appropriate inspection intervals. Table 3b provides indicators for maintenance work. In order to check the latch mechanism, the breaker can be opened and closed with a hand lever. Fig. 2 shows the correct use of the lever. Fig.1 Setting the overload release Fig. 2 Manual ON/OFF. 10
Type of inspection Intervals of inspection Work to be carried out General visual and functional check Checks: -Contacts -Arc probes -Protective walls -Arc chute (LBK) Check breaker and tripping mechanism. To be carried out by trained specialist. Check arc probes and arc chute screw connections Recommended: every 6 months At least once a year After high short circuit openings (>25kA) or frequent operations with overloadand/or rated current At least once a year After 5000 mech. operations At least once every 4 years After each job carried out in the contacts probe or arc chute At least once every 6 months Remove dirt, check drive and trips for correct operations Check for wear and deposits Check proper operation, setting values and flexible braid Check for tight fitting Table 3a: Inspections required Work to be carried out required Changing arc-chute (LBK) As required by the results of the inspection Adjustment of latch mechanism Exchange parts Replaces of: -Pre-arcing contacts (wear contacts) -Arc probes -Protective walls As required by the results of the inspection, or to be done latest after 100 overload operations or 300 loadbreak operations at rated current Table 3b: Maintenance required 11
Page 1: USER`S GUIDE High Speed DC Circuit
Page 4 and 5: 1.1. General view Arc chute Adaptor
Page 6 and 7: 1.2 Technical Data Breaker type Ger
Page 8 and 9: 1.3 Short Deskription Gerapid high-
Page 12 and 13: 3.2 General Visual and Functional C
Page 14 and 15: 3.6 Checking the Latch Mechanism an
Page 16 and 17: Basic Connections Definitions The p
Page 18 and 19: Q1:X3 3) S3 3) S3 2)S2 15 14 Q1:X2
Page 20 and 21: -Q1 Drive + / ~ -X12 2 1 -S3 3 -X2
Page 22 and 23: -S2 -X2 -X2 :7 :6 X13 3 4 5 -K2 A1
Page 24 and 25: -X16 -X10, 11 :8 + 1 Power supply 2
Page 26 and 27: -X3 :8 -X3 :12 -X3 :9 -X3 :13 36/ .
Page 28 and 29: 5. Dimensional drawings Warnings Du
Page 30 and 31: Fig. 20 Gerapid 2607- 6007, arc chu
Page 32 and 33: Fig. 22 Gerapid 8007, arc chute 1X
Page 34 and 35: Fig. 24 Gerapid 2607 / 4207 connect
Page 36 and 37: Fig. 26 Gerapid 6007, connections v
Page 38 and 39: Forced tripping device Fig. 28 Bott
Page 40 and 41: 7. Gerapid 2607/4207 - Current meas
Page 44: APPARECCHIATURE ELETTRICHE INDUSTRI

USER`S GUIDE High Speed DC Circuit Breaker TYPE ... - Biziz

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