GE K-45404F Manuel d'utilisateur télécharger pdf (Page 13)

GEK-45404

INSTALLATION

INSPECTION

At the time of installation, the relay should be inspected for tarnished contacts, loose screws, or other

imperfections. If any trouble is found, it should be corrected; see MAINTENANCE. Check the

nameplate for model number and rating.

LOCATION

The location should be clean and dry, free from dust and excessive vibration, and well lighted to

facilitate inspection and testing.

MOUNTING

The relay should be mounted on a vertical surface. The outline and panel drilling dimensions are

shown in Fig. 14 for relay Types IAV51D, IAV52D, and IAV52C. Fig. 15 shows outline and panel

drilling for relay Types IAV51K and IAV52K.

CONNECTIONS

Internal connections are shown in Figs. 3 to 7 for the various relays.

GROUND CONNECTIONS

One of the mounting studs or screws should be permanently grounded by a conductor not less than

No. 12 B&S gage copper wire or its equivalent.

OPERATION

Before the relay is put in service, the pickup-voltage and time-voltage tests described under

ACCEPTANCE TESTS (ELECTRICAL TESTS) should be made to determine that factory

adjustments have not been disturbed.

The relay may be tested while mounted on the panel, either from its own or another source of power,

by inserting a separate testing plug in place of the connecting plug. Or, the cradle can be drawn out

and replaced by another that has been laboratory tested.

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GE K-45404F Manuel d'utilisateur Page 13