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Table 7

Gap/wipe standard value

Part:

Vacuum

interrupter

1 2 .

FOR DURABILITY

(1) Electrical service

The electrical

life of the vacuum interrupter is defined by the electrode wear the

number of open/close operations (mechanical life).

To determine the electrode wear, measure the gap between the lever and washer

(dimension A) in a closed start , as shown in Figure8. With the vacuum interrupter

closed, if a contact ‘wear gauge or a 1 .Omm thickness gauge cannot be inserted ,

this means the end of life is reached.

For the components listed below, replacement or detailed inspection and cleaning

are recommended after the indicated number of operations.

Table 8 Electrical service life

Auxili

Drive

Movs

Hence, parts should be replaced around electrical service life operations.

S P R I

W A S H E R

Fig.8

Parts to be inspected

Содержание CV-10HA

Страница 1: ...TOSHIBA 6F9G0133 INSTRUCTION MANUAL HIGH VOLTAGE VACUUM CONTACTORS MOTOR TRANSFORMER APPLICATION J fJE CV 1OHA 12 15kV 32OA 5 4kA P PE CV 1 OHAL 12 l 5kV 32OA 5 4kA T O S H I B A C O R P O R A T I O N ...

Страница 2: ...cordance with IEC 60470 2000 The vacuum contactor should be used in the following conditions Table 1 Normal service condition Less than 1 OOOm Ambient temperature 5 C min to 4O C max Its average over a period of 24h does not exceed 35 C Relative hurnidity 45 min to 85 max 20Hz 9 8m s2 o r l e s s CAUTION Do not use in condition other than those specified above please consult 2 Mive condition The l...

Страница 3: ...more place Place where suffer the sea breeze Reduction of ventilation Setting of ventilation for sea breeze Frequent inspection iigh humidity Place where very more snow and ice More humidity Place where near the cooling tower Place where cause changing the temperature suddenly Setting the space heater Setting the ventilation Prevention of flooding into the cable pit Zorrosion gas Corrosion gas whi...

Страница 4: ... specifications on the plate are correct 3 Check the contact wear gauge and control cable 4 Check the tripping rod Latched type 4 STORAGE AND IHANDLING When the contactor is to be stored over a long period the storage area should be dry and dust free area If the contactor is left outdoors or in adverse conditions corrosion from gas rust or insulation deterioration may result CAUTION In handling do...

Страница 5: ...e four mounting holes Use Ml 0 bolts to securely mount the contactor 3 In wiring the main circuit terminals ground terminals and control circuit wires should be given sufficient length to be flexible The ground wires should be more than 5 5mm in cross section 4 Do not mount the contactor with its front inclined downward This may result in malfunction 5 Do not touch the vacuum interrupter surface w...

Страница 6: ...TOSHIBA 6F9G0133 6 RATING DANGER Do not exceed the ratings specified on the contactor Table 3 Ratings 5 ...

Страница 7: ...T O S H I B A 6F9G0133 7 OUTI INF DRAYW 6 ...

Страница 8: ...TOSHIBA 6F9G0133 8 STRUCTRE ...

Страница 9: ... standard When a latched contactor is operated using AC power it is recommended that a Capacitor trip device be used The standard operating voltage is as follows Non latched type normally energized loo 240 V AC lOO 220V DC Latched type lOO 240V AC I 00 250V DC closing voltage lOO 11OV DC tripping voltage D i o d e L a t c h e d t y p e 1 S W I T C H I N G 1 Fig 3 Internal Configuration of Drive Un...

Страница 10: ...tions of the normally energized type latched type respectively According to there figures connection should be made of the control power supply and open close command contact power relay contact Fig 4 Internal connection of the normally energized type Fig 5 tnternal connection of latched type 9 ...

Страница 11: ...ig 6 the latched type Wiring should be done according to these circuit diagrams Y Fig 6 Standard operation circuit of normally energized type NOTE Be sure to use quickly AC auxiliary relay contact NO for self holding If the self holding circuit is formed by using the auxiliary contact No of the vacuum contactor welding of the main contact may result when the start button is pushed incompletely ref...

Страница 12: ...de the contactor 0 A stable DC power source such as battery is recommended for the control circuit If DC power source is not available employ a AC closing and a Capacitor trip l Be sure to use the control connector between No 3 and No 13 auxiliary contact for trip circuit Cclnnect the control connector between No 5 and No 1 5 auxiliary contact for control relay circuit 11 ...

Страница 13: ...heck for any loose connections 2 Check for any wiring errors Perform this test with only the control circuit energized confirm that the operation is correct For the latched type contactor check that the latch correctly engages and trips when the close trip signals are applied Also manually trip the contactor using trip lever to verify proper operation 12 ...

Страница 14: ...ervals should be determined according to the result of the initial inspection See Section 2 for use under special environment as in outdoor cubicles 1 Patrol Inspection every l 6 months With the cubicle energized visually check from out side the cubicle according to the check list of Table 45 WARNING When opening the door of the cubicle do not come close to danger area Table 4 Patrol inspection it...

Страница 15: ...or every 20 000 operations The faciliiy should be removed out of service and perform inspection According to the instruction given in Table 6 Contact with energized components can cause severe injury or death Turn off and lock out primary and control circuit before servicing 14 ...

Страница 16: ...dical inspection and detailed inspection ontactor as dust adheres to the Under dusty environments frequent inspection check correct and burned parts and coupling conductor ause and replace Check contact wear and inform the maker 15 ...

Страница 17: ...e standard level investigate the necessary replace Measure insulation resistance between circuits and ground Measurement is taken More than 1 M Q strength between phases between electrodes and between circuits and inform the maker Open close operation operation by electric operation test to confirm check and repair Remarks For extraordinary unscheduled inspections pick up check items from the abov...

Страница 18: ...d washer dimension A in a closed start as shown in Figure8 With the vacuum interrupter closed if a contact wear gauge or a 1 Omm thickness gauge cannot be inserted this means the end of life is reached For the components listed below replacement or detailed inspection and cleaning are recommended after the indicated number of operations Table 8 Electrical service life Vacu t Auxili Drive Movs Henc...

Страница 19: ...illion operations and the latch type 0 25 million operations The mechanical service life of the vacuum interrupter is 100 000 operations For the components listed below replacement or detailed inspection and cleaning are recommended after the indicated number of operations Table 9 Recommended replacement park 18 ...

Страница 20: ...T O S H I B A C O R P O R A T I O N ...

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