User manual TOSHIBA HCV-5HA

[. . . ] 6 INSTRUCTION MANUAL INSTALLATION - OPERATION - MAINTENANCE HCV-5HA 7. 2kV, 400A-7. 0kA (4. 5kA@7. 2kV) HCV-5HAL 7. 2kV, 400A-7. 0kA (4. 5kA@7. 2kV) MAY 2006 MAY 2006 INTRODUCTION Page 2 READ THIS MANUAL carefully for important information about safety, handling, and maintenance, for general-purpose NEMA Class E magnetic controllers. This manual and all accompanying drawings should be considered a permanent part of the equipment. They should be readily available for review and reference at all times. DIMENSIONS shown in the manual are in metric and/or their English equivalent. [. . . ] If the mounting surface is not level, adjust with spacers or shims. The contactor base has four (4) mounting holes. Use M8 or 5/16 bolts to securely mount the contactor. In wiring the main circuit, wires should be given sufficient length to be flexible for service. The ground wires should be #10 AWG or larger. Avoid touching the surface of the vacuum interrupter with soiled hands. You can damage the silicon finish on the interrupter. If the interrupter becomes dirty, simply clean it with a non-tracking cleaner such as rubbing alcohol. Page 12 PRE-OPERATION SET-UP CONTROLS The drive unit for the closing coil assembly is installed in a cavity in the molded frame housing. The closing circuit can be operated by applying either AC or DC to this drive unit. The optional latch trip circuit uses DC as standard. When a latched contactor is operated using AC power, it is recommended that a capacitor trip device be used. The standard control voltage (factory preset) is 120V AC. To operate at other ratings see the selection chart below. 2 Control Voltage Selection for Closing Coils The following is a list of the available trip coil voltages for a latched type contactor: 24 V DC 125 V DC 32 V DC 250 V DC 48 V DC PRE-OPERATION SET-UP CONNECTION OF CONTROL POWER SUPPLY Page 13 Figures 3 and 4 show the internal connections of the magnetically held (normally energized) type and the latched type respectively. Connect control power and open/close control signals according to these connection diagrams. Note: Connections are the same for 100V and 200V class. After mounting and wiring of the vacuum contactor, make the following inspections. Perform this test with only the control circuit energized. 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 the trip lever to verify proper operation. For latch kit adjustment and maintenance please refer to manual no. 6F9G0132 - Installation Instructions of Latch Kits for HCV-5HA. MAINTENANCE GENERAL INSPECTION MAINTENANCE AND INSPECTION Page 17 The following maintenance and inspections are recommended to maintain the performance level and extend the operational life of the vacuum contactor. [. . . ] Then tighten nut "A". INSULATING FLANGE Fig. 11 Adjusting the Main Contact Gap. OPERATION CHECK In a no-load condition, electrically operate the contactor through 20 operations to confirm normal operation. Page 22 MAINTENANCE TROUBLESHOOTING Turn off main power before any inspections are conducted. Table 4 SYMPTOM Contactor does not close. Latch does not engage. SOURCE OF TROUBLE/PROBLEM SOLUTION Trip coil overheated. If inspection and/or Conduct investigation with countermeasure is difficult, main power "OFF". inform Toshiba immediately. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Control power supply is low. [. . . ]