Schneider Electric K series Manual de usuario descargar pdf (Pagina 68)

PM1000 Series Power Meters PLSED309039EN

Chapter 7 – Maintenance And Troubleshooting 08/2010

Troubleshooting

The information in Table 7–1 describes potential problems and their possible

causes. It also includes possible checks to perform or solutions to the

problems. After referring to this table, if you cannot resolve the problem,

contact your local Schneider Electric sales representative for assistance.

DDANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

 Apply appropriate personal protective equipment (PPE) and

follow safe electrical practices. For example, in the United

States, see NFPA 70E.

 This equipment must be installed and serviced only by qualified

personnel.

 Turn off all power supplying this equipment before working on or inside.

 Always use a properly rated voltage sensing device to confirm

that all power is off.

 Carefully inspect the work area for tools and objects that may

have been left inside the equipment.

 Use caution while removing or installing panels so that they do

not extend into the energized bus; avoid handling the panels,

which could cause personal injury.

Failure to follow this instruction will result in death or serious injury.

Table 7-1: Trouble shooting

Potential Problem

Possible Cause

Possible Solution

The data being displayed

is inaccurate or not what

you expect.

Incorrect setup values

Check that the correct

values have been entered

for power meter setup

parameters (CT and PT

ratings, system type, and

so on). See ―PROG menu

- Setup‖ on page 17 for

setup instructions.

Usage of protection class

(10P10 etc.) CTs/PTs

Use instrument class 1 or

better CTs/PTs, which will

have better accuracy than

the protection class

CTs/PTs.

Improper wiring

Check whether all the PTs

and CTs are connected

properly (proper polarity is

observed) and that they

are energized. Check

shorting terminals. See

―connection diagrams ―on

page 43 for more

information.

Active Power (W) reading

is negative

CT may be reversed

Check and correct the CT

connections.

Power may be in export

mode

1. Check the mode. If the

mode is in import, s1 s2

need to be interchanged

in one or two or in all the

three phases. Under

this condition, the

energy will update in

INTG Rev.

2. Check the mode. If it is

in export, then the

energy will update in

INTG Rev.

1 2 ... 63 64 65 66 67 68 69 70 71 72 73 ... 80 81

Comentarios a estos manuales

Sin comentarios

Schneider Electric K series Manual de usuario Pagina 68

Comentarios a estos manuales

Relacionado con productos y manuales para De medición, control y control Schneider Electric K series