Consideration Of Load Input Connector And Connecting Lead Wire - Prodigit 3260A Series Operation Manual

PRODIGIT
3-6

Consideration of Load Input Connector and Connecting Lead Wire

Load Input Connector used for 3260A Series High Power Electronic Load is the 5-purpose
input connector of which the usage is as follows:
3.6.1 Plug Connector:
This is the most common way for connecting the equipment to be measured with
3260A Series High Power Electronic Load. It is recommended that this connector
shall be used when the load current is less than 20A because the rated current of the
plug connector is 20A. Please avoid excess of the rated current to prevent damage
due to overheat. The maximum gauge of the connecting wire is AWG #14.
3.6.2 Hook-Type Terminal
The attachments of 3260A Series High Power Electronic Load include two (2) hook-
type terminals for connecting the equipment to be measured with the wire of AC load
input connector of the electronic load. Hook-type terminal can provide the input
connector with good contacting characteristics. It is recommended that the hook-type
terminal can be used for any occasion. The maximum gauge of the connecting wire is
AWG #10.
3.6.3 Lead Wire Insertion Type:
This is the most simple way to insert the connecting wire into the holes on the metal
portion of the input connector. The maximum gauge of the connecting wire is AWG
#14.
3.6.4 Plug Connector and Hook-Type Terminal:
This method can provide higher current rating and lower impedance of the
connecting wire. When input load current is higher than 20A or the connecting lead
wire is longer, this method will be optimum.
3.6.5 Plug Connector and Lead Wire Insert Type:
This method can be used when the input current is higher than 20A or the connecting
lead wire is longer. When the object to be measured is connected with the electronic
load, it is most important that the size of the connecting wire shall be taken into
account. In order to prevent overheat thus maintaining good adjustment rate, the
requirement of minimum size of the connecting wire or minimum size of the wire
gauge shall be met. During actual application, please pay attention to the size of wire
gauge and note that the voltage drop of each connecting wire shall be less than 0.5V.
3.6.6 Connection procedure of the load input terminal:
1. Turn off the POWER switch.
2. Check that the output of the equipment under test is off.
3. Connect the load wire to the load input terminal.
4. Check the polarity of the connection and connect the load wire to the output
terminal of the equipment under test.
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