_________________________________________________________Chapter 4 - Maintenance, Page 4-5
Operator Preventive Maintenance – Cont.
Removing Cells – Cont.
8.
Extreme Caution: As a standard procedure, before removing the lead wires from the ESP Cells
and removing the Cells, a Standard Safety Voltage Test must be conducted as described in steps
a) through d) below.
This test is necessary to insure that the power to the Transformer has shut
off and the Grounding Disc made proper contact with the brass grounding screws to drain all the
residual power from the Transformer.
Note: To conduct this test a high volt meter with a high voltage probe is required. Gaylord
Industries recommends a high voltage probe manufactured by Fluke, model 80K-40 HV Probe.
Note:
Opening the ESP Cell Access Door releases the Plunger Safety Switch, shutting off power to
the transformer by releasing the micro switch, and draining residual power from the
transformer(s) by the Grounding Disc making contact with the brass grounding screws (Refer to
Figure 6-52-1 and 6-53-1).
Standard Safety Voltage Test Before Removing the Cells
To test the transformer voltage two tests must be performed; the Ionizer Voltage Test and the
Collector Voltage Test. To test proceed as follows:
a)
Ionizer Voltage Test (10 KV Terminal) – Clip the ground lead from the high voltage probe onto
the ground nut (Refer to Figure 4-5-1).
b)
Place the point of the high voltage meter onto the 10 KV connection plate (Refer to Figure 4-
5-1). There should be no voltage. If there is voltage do not proceed. Refer to the
Troubleshooting Section of this manual. If there is no voltage proceed to step c) the Collector
Voltage Test.
High Volt
Probe
Figure 4-5-1
Testing 10 KV Terminal Voltage
Ground Wire
10 KV
Terminal
