Siemens 9200 Scheda tecnica

9200 Power Meter

9200 Features Guide

Table of Contents

◆ 9200 Meter Features Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

◆ The Megawatt Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Before You Use the Megawatt Option . . . . . . . . . . . . . . . . . . . . . . 6

◆ Basic Setup for the Megawatt Option . . . . . . . . . . . . . . . . . . . . . . . 7

◆ Megawatt Option Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Display Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Configuration Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

◆ Appendix A: Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Modbus Address Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Read-Write Configuration Map . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Read-Write Control Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Modbus Data Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Exception Responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

◆ Appendix B: Configuration Reference Tables . . . . . . . . . . . . . . . 20

Standard Measurements and Enhanced Packages 1 & 2 . . . . . 20

Meter Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Table of Contents

9200 Meter Features Guide

This guide describes the 9200 meter features that are ordering options—

this edition includes meter operation of the Megawatt option.

9200 Technical Documentation

Comprehensive technical documentation for the 9200 meter is shipped

with the meter and is available online at www.sea.siemens.com/access.

The 9200 Installation and Basic Setup Instructions manual provides

operational details for your 9200 meter, and can be referenced in addition

to this Features Guide.

DANGER

Installation and maintenance of Access meters and meter options should only be performed

by qualified personnel that have appropriate training and experience with high voltage/

current devices. In the

9200 Installation and Basic Setup Instructions,

refer to Installation

Considerations, and the Danger, Warning, and Limitation of Liability notices.

9200 Features Guide

The Megawatt Option

The Megawatt option displays all power and energy values in millions

(e.g. megawatts) and volts in thousands (kilovolts). The Megawatt option

has a different front panel faceplate than the standard meter, with labels

for kV, MW, MVA, MVAR, MWh, MVAh, and MVARh.

Before You Use the Megawatt Option

In addition to setting up the PT1 and PT2 registers on your Megawatt

option, you must set the PTS (PT Scaling) register to “x1000.” This allows

communications software to correctly interpret megawatt and kilovolt

quantities, and enables meaningful measurements through the meter

front panel.

To learn about meter configuration, refer to the 9200 Installation and Basic

Setup Instructions section “Front Panel Navigation”—”Configuration Mode.”

What Does the PT Scaling (PTS) Setup Register Do?

The PT Scaling setup register provides an additional PT primary register to

accommodate a larger PT ratio. PTS offers a “x1000” quantity for the PT

primary register. (The standard meter model uses the “x1” default scaling.)

How PT Scaling Defines the PT Ratio

Suppose that a meter with the Megawatt option is applied to measure

power on a 500 kV system, the voltage applied to the PT primary is 288

kV, and the expected voltage on the PT secondary is 120 V. The formula

below shows how these values are used with the PT Scaling register set at

“x1000” to define the overall PT ratio.

The formula shows that the meter correctly measures 288.0 kV when PTS

is set to “x1000,” PT1 is set to 288, and PT2 is set to 120.

PT1 (Primary)

PTS (Scaling)

PT2 (Secondary)

Pt1

P S

Pt2

You must set the PTS register

to “x1000” for the Megawatt

option to operate correctly.

PT Ratio = PT Primary

PT Secondary

PT1 x PTS

PT2

PT Ratio = 288,000

120

288 x 1000

120

Basic Setup for the Megawatt Option

Basic setup determines how the meter interprets the power system it is

connected to, as well as how the meter communicates with connected

networks or workstations. You can use the meter front panel or software

to perform basic setup (e.g. PT Primary, PT Secondary, and PT Scaling set

up) on a meter with the Megawatt option.

For parameter configuration through the front panel, the meter must be in

Configuration mode. Refer to “Configuration Mode” in the 9200

Installation and Basic Setup Instructions. For meter setting defaults and

values refer to “Meter Settings” on page 21.

Using configuration software, you can access the networked meter from

your workstation. Refer to “Appendix A: Communications” on page 13.

Megawatt Option Front Panel

Down button Enter buttonUp button

Negative value

indicator

Infrared (IR) Port

Demand /

Peak Demand

measurements

System

measurements

x 1000 indicator

Phase

measurements

Energy readings

Phase B

Phase A

Phase C

9200 Features Guide

With the meter front panel, you can view parameter values; configure

parameters; perform demand resets; perform LED checks; and view meter

information. Each of these functions can be accomplished by pressing the

Up, Down, and Enter buttons on the front panel. These button actions

achieve different results according to the mode that the meter is in:

◆Display mode (default): view parameter measurements

◆Reset mode: reset demand measurements

◆Configuration Select/Edit modes: configure a parameter

◆Information mode: verify that the front panel display LEDs operate,

and view meter information, e.g, meter options, firmware version etc.

This section describes how to interpret Display mode values on a meter

with the Megawatt option. Refer to the 9200 Installation and Basic Setup

Instructions to learn about Reset, Configuration, and Information modes.

The Megawatt option displays different values than the standard meter,

but does not differ operationally for these modes.

Display Mode

A lit LED below A, B,

or C indicates that

the measurement has

a negative value.

Phase Measurements

This list displays per

phase measure-

ments (A, B, C).

System

Measurements:

This list displays

system mea-

surements.

Each line of

the display

shows a differ-

ent system

measurement.

Energy Readings

Parameters in this

row display energy

readings.

Demand / Peak

Demand (Max)

Measurements

This list displays

Demand and Peak

Demand (Max)

measurements.

(Min/Max mea-

surements will be

in a future release).

Numbers 1 – 5 rep-

resent the order that

the measurement

groups display when

you scroll in Display

mode.

You can scroll from

group to group with

the Enter button, or

from parameter to

parameter within a

group with the Up/

Down buttons.

Display Mode

In Display mode, you can view values from these measurement groups:

System (total), Per Phase, Energy, Demand, and Peak Demand. (This

assumes that you have ordered Enhanced Measurements Package 2. Refer

to “Standard Measurements and Enhanced Packages 1 & 2” on page 20, or the

9200 Options Card Retrofit Instructions for information regarding Options

Cards).

Display Mode Parameter Measurements

The following table lists the parameters in each measurement group:

* Displays system (total) values.

x1000 Indicator

When the “x1000” LED is lit, multiply the displayed value by 1000 for the

actual value.

Viewing Parameter Measurements

The meter defaults to Display mode, and to the System measurements

within this mode. The following graphics illustrate how to interpret

Display mode measurements on a meter with the Megawatt option.

Measurement Group Parameters Measured

System (Total) kVAVG, IAVG, MW, MVA, MVAR, PF, Frequency, I4

Phase A, B, and C kVLN, kVLL, I, PF, MW, MVA, MVAR, VTHD, ITHD

Energy MWh, MVAh, MVARh

Demand* MVA, MVAR, MW, IAVG

Peak Demand (Max)* MVA, MVAR, MW, IAVG

Min/Max Min/Max measurements provided in a future release

9200 Features Guide

L-N

L-L

THD

Each line of the display shows a Phase measurement. The

example above shows current for Phase A, Phase B, and Phase C

on lines 1, 2, and 3 respectively. Phase B shows a negative

current, indicated by the lit bar-shaped LED below the “B.”

value

for

MAX

DMD

MIN

kWh kVAh kVARh

Phase Measurements

Phase measurements

Press the Enter button to display readings.Energy

Press the Up/Down

buttons to display a

or the next in

this group of Phase

measurements

parameter

value

Each line of the display shows a System measurement. In the above

example, line 1 = System Average Kilovolts (kV ) with a value of

450.1 kV; line 2 = System Average Line Current (I ) with an actual

AVG

value of 2,315 A; line 3 = System Total Active Power (MW) with an

actual value of 1,042 MW. (*Actual value = displayed x 1000.)

Press the Up/Down

buttons to display a

or the next in

this group of System

measurements

parameter

value

System Measurements

Press the Enter button to display measurements.Phase

MAX

DMD

MIN

System measurements

THD

VAh

VARh

VAR

AVG

x 1000

AVG

FREQ

x 1000

VAR

AVG

x 1000

AVG

FREQ

x 1000

THD

VAR

AVG

x 1000

AVG

FREQ

x 1000

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