Elster ALPHA Manual de usuario

General

This instructional leaflet contains general installation instructions for the following single phase and

polyphase watthour meters:

• socket-connected meters: 1S, 2S, 3S, 4S, 5S, 6S, 8S, 9S, 10S, 12S, 13S, 16S, 26S, 29S, 35S, 36S, 45S, 56S

• bottom-connected meters: 5A, 6A, 10A, 13A, 16A, 35A, 36A, 45A

See the following technical manuals for more information about the ALPHA meter:

•ALPHA

®Meter Technical Manual (TM42-2180A or later)

• ALPHA Meter Options Technical Manual (TM42-2181B or later)

•ALPHAPlus

®Meter Technical Manual (TM42-2182C or later)

• A3 ALPHA Meter Technical Manual (TM42-2190A or later)

All meters are calibrated and tested before shipment. For proper installation, accuracy, and maximum

life of the meters, use the following installation procedures.

Use authorized utility procedures to install and service metering equipment. Dangerous voltages are

present. Equipment damage, personal injury, or death can result if safety precautions are not

followed.

Use circuit closing devices on any current transformer secondaries (3S, 4S, 5S, 5A, 6S, 6A, 8S, 9S, 10S,

10A, 26S, 29S, 35S, 35A, 36S, and 36A meters). Equipment damage, personal injury, or death can

result if circuit closing devices are not used.

Form 45S, Form 45A, and Form 56S meters present additional risks of electrical shock that may result

in severe personal injury or death when the cover is removed from energized meters unless certain

additional safety procedures and precautions are followed. Be sure to follow the safety procedures

and precautions when servicing Form 45S, Form 45A, and Form 56S meters as stated in this manual

(see “Forms 45S, 45A, and 56S safety precautions” on page 3) as well as your authorized utility

procedures.

ALPHA meter

Installation instructions

IL42-4001S

ALPHA meter

IL42-4001S

Socket-connected installation

Before you install the meter, check the following:

• Are the socket and meter current class ratings compatible with the meter?

• Is the wiring to the meter socket correct? See the wiring diagrams on the following pages.

• Is a lightning arrestor present? If so, remove the paint from the socket rim where it contacts the

arrestor's ground strap. This will ensure proper grounding.

• Is the TEST button in the unlocked position? If the TEST button is in the locked position, the meter will

enter TEST mode when you install it. For more information, see the technical manual for your meter.

After you install the meter, check the following:

• If load is applied, check that the pulse arrows on the LCD are blinking.

The LCD has 2 sets of pulse arrows, one located above the other. The upper set of arrows indicates

watthours, and the lower set indicates alternate energy (kVARh or kVAh, if available). The arrows

pointing to the left indicate energy received; arrows pointing to the right indicate energy delivered.

For more information, see the technical manual for your meter.

Bottom-connected installation

Before you install a bottom-connected meter, check the following:

• Determine where the meter is to be installed. It should be on a flat wall at the point of electrical

service entrance cables.

• Are the meter class and service connections compatible with the meter?

To install a bottom-connected meter, perform these steps:

1 Mount the bottom-connected meter or the bottom-connected S-to-A adapter.1

Use authorized utility procedures to install ground connection before wiring. Dangerous voltages are

present. Equipment damage, personal injury, or death can result from wiring an ungrounded meter.

2 Wire the meter. See the wiring diagrams beginning on page 3. If the wire diagram is larger than the

wire, use only approved adapters. External meter wiring should be consistent with the meter class

rating.

- For 100 amp meters, use #2 wiring (or in accordance with standard utility operating practices)

- For 150 amp meters, use #1 AWG or 50 mm2 wiring (or in accordance with standard utility

operating practices)

- For transformer rated meters, use #9 wiring (or in accordance with standard utility operating

practices)

1Not supplied by Elster Solutions.

ALPHA meter

IL42-4001S

After you install a bottom-connected meter, check the following:

• If load is applied, check that the pulse arrows on the LCD are blinking.

The LCD has 2 sets of pulse arrows, one located above the other. The upper set of arrows indicates

watthours, and the lower set indicates alternate energy (kVARh or kVAh, if available). The arrows

pointing to the left indicate energy received; arrows pointing to the right indicate energy delivered.

For more information, see the technical manual for your meter.

• The TEST annunciator is not blinking. If it is blinking, then remove the meter from service, remove the

cover, and rotate the TEST button so that the meter is placed out of test mode. For more information,

see the technical manual for your meter.

Forms 45S, 45A, and 56S safety precautions

Form 45S, Form 45A, and Form 56S meters present additional risks of electrical shock that may result

in severe personal injury or death when the cover is removed from energized meters unless certain

additional safety procedures and precautions are followed. Be sure to follow the safety procedures

and precautions when servicing Form 45S, Form 45A, and Form 56S meters as stated in this manual

as well as your authorized procedures.

When using Forms 45S, 45A, and 56S meters, be sure to understand and follow the important safety-

related concerns.

• Form 45S meters: safety concerns exist with Form 45S meters in any application in which socket jaw

7 is not grounded.

• Form 45A meters: safety concerns exist with Form 45A meters in any application in which the

equivalent terminal to the Form 45S socket jaw 7 is not grounded (A-base voltage terminal #6, as

numbered from left-to-right).

• Form 56S meters: safety concerns exist with Form 56S meters in any application in which socket jaw

16 is not grounded.

These safety concerns include, but are not necessarily limited to, the following:

• 3-wire delta applications

• dual single phase “star” configurations (may also be referred to as 5-wire, 2-phase)

• 4-wire delta applications in which the high leg is not tied to phase C

The primary safety concerns in these applications are as follows:

1 The meter battery terminals and circuit board electronics will be at line potential.

2 The circuit board electronics of any installed option board will be at line potential.

3 Any internal antenna or other electrical extension of any installed option board will be at line

potential.

It is important to assess the potential hazards after removing the meter cover and disconnect the

electrical power as necessary to perform service.

ALPHA meter

IL42-4001S

Installation wiring

All available ALPHA meter forms are listed and separated with respect to the type of service being

metered. Use of Form 9S, 10S, and 10A (in 8S and 8A applications), and Form 16S (in Form 15S

application) are also shown. Form 14S and 14A applications are simply 4 wire WYE services and would

be metered by Form 16S and 16A. The more complicated wirings are shown using both PTs and CTs.

The socket ground is shown for safety considerations. The neutral-to-ground connection is shown for

example only. Actual neutral-to-ground connection should be performed within the operating utility's

standard practice.

Single phase meters

Form 1S

1 phase, 2 wire, self–contained

20E01

Form 2S

1 phase, 3 wire, self–contained

20E01

Form 3S

1 phase, 2 wire, 1 CT, no PTs

29A02

CIRCUIT

CLOSING

DEVICE

Form 3S

1 phase, 3 wire, 1 CT, no PTs

14I01

CIRCUIT

CLOSING

DEVICE

Form 4S

1 phase, 3 wire, 2 CTs, no PTs

29A02

CIRCUIT

CLOSING

DEVICE

Reduce CT ratio by ½

ALPHA meter

IL42-4001S

3 wire delta meters

Form 5A

3 phase, 3 wire delta, 2 CTs, 0 or 2 PTs

20E01

CIRCUIT

CLOSING

DEVICE

20E01

Form 5S

3 phase, 3 wire delta, 2 CTs, 0 or 2 PTs

Form 12S

3 phase, 3 wire delta, self–contained

20E01

Form 26S

3 phase, 3 wire delta, 2 CTs, 0 or 2 PTs

20E01

CIRCUIT

CLOSING

DEVICE

Form 13A

3 phase, 3 wire delta, self-contained

20E01

Form 13S

3 phase, 3 wire delta, self-contained

20E01

23A06

Form 45S

3 phase, 3 wire delta, 2 CTs, 0 or 2 PTs

CIRCUIT

CLOSING

DEVICE

20E01

Form 35S

3 phase, 3 wire delta, 2 CTs, 0 or 2 PTs

CIRCUIT

CLOSING

DEVICE

Form 35A

3 phase, 3 wire delta, 2 CTs, 0 or 2 PTs

20E01

ALPHA meter

IL42-4001S

3 wire delta meters

3 wire wye meters

Form 45A

3 phase, 3 wire delta, 2 CTs, 0 or 2 PTs

23A06

Form 56S

3 phase, 3 wire delta, 2 CTs, 0 or 2 PTs

20E01

CIRCUIT

CLOSING

DEVICE

Form 5A

2 phase, 3 wire wye, 2 CTs, no PTs

20E01

CIRCUIT

CLOSING

DEVICE

Form 5S

2 phase, 3 wire wye, 2 CTs, no PTs

20E01

Form 12S

2 phase, 3 wire wye, self-contained

20E01

Form 13A

2 phase, 3 wire wye, self–contained

20E01

Form 13S

2 phase, 3 wire wye, self-contained

20E01

Form 26S

2 phase, 3 wire wye, 2 CTs, 0 PTs

16C06

CIRCUIT

CLOSING

DEVICE

KZY

ALPHA meter

IL42-4001S

3 wire wye meters

4 wire delta meters

Form 35A

2 phase, 3 wire wye, 2 CTs, no PTs

20E01

Form 35S

2 phase, 3 wire wye, 2 CTs, no PTs

CIRCUIT

CLOSING

DEVICE

23A06

Form 45S

2 phase, 3 wire wye, 2 CTs, no PTs

CIRCUIT

CLOSING

DEVICE

Form 45A

2 phase, 3 wire wye, 2 CTs, no PTs

23A06

Form 56S

2 phase, 3 wire wye, 2 CTs, 0 PTs

16C06

CIRCUIT

CLOSING

DEVICE

KZY

Form 9S (Form 8S application)

3 phase, 4 wire delta, 3 CTs, no PTs

23E01

KZY

CIRCUIT

CLOSING

DEVICE

20E01

CIRCUIT

CLOSING

DEVICE

Form 5S

3 phase, 4 wire delta, 2 CTs, 2 PTs

Reduce CT ratio by ½

Form 5A

3 phase, 4 wire delta, 2 CTs, 2 PTs

20E01

Reduce CT ratio by ½

ALPHA meter

IL42-4001S

4 wire delta meters

CIRCUIT

CLOSING

DEVICE

Form 10S (Form 8S application)

3 phase, 4 wire delta, 3 CTs, no PTs

20E01

Wiring is different than a traditional

Form 8 meter

Form 10A (Form 8A application)

3 phase, 4 wire delta, 3 CTs, no PTs

23E01

Wiring is different than a traditional

Form 8 meter

Form 16S (Form 15S application)

3 phase, 4 wire delta, self-contained

20E01

Form 16A (Form 15A application)

3 phase, 4 wire delta, self-contained

20E01

Form 26S

3 phase, 4 wire delta, 2 CTs, no PTs

20C06

CIRCUIT

CLOSING

DEVICE

Reduce CT ratio

by ½

CIRCUIT

CLOSING

DEVICE

Form 26S

3 phase, 4 wire delta, 2 CTs, 2 PTs

29A02

Reduce CT ratio by ½

60 Hz only

ALPHA Plus with

autodetection enabled &

A3 ALPHA only

CIRCUIT

CLOSING

DEVICE

Form 35S

3 phase, 4 wire delta, 2 CTs, 2 PTs

Reduce CT ratio by ½

21C06

Form 35S

3 phase, 4 wire delta, 2 CTs, no PTs

CIRCUIT

CLOSING

DEVICE

Reduce CT ratio by ½

60 Hz only

ALPHA Plus with

autodetection

enabled &

A3 ALPHA only

16C06

Form 35A

3 phase, 4 wire delta, 2 CTs, 2 PTs

27A02

Reduce CT ratio by ½

ALPHA meter

IL42-4001S

4 wire delta meters

4 wire wye meters

Form 45S

3 phase, 4 wire delta, 2 CTs, no PTs

CIRCUIT

CLOSING

DEVICE

Form 35A

3 phase, 4 wire delta, 2 CTs, no PTs

Form 45A

3 phase, 4 wire delta, 2 CTs, no PTs

Reduce CT ratio by ½ Reduce CT ratio by ½ Reduce CT ratio by ½

60 Hz only

ALPHA Plus

with

autodetection

enabled &

A3 ALPHA only

16C06

20C06

Form 56S

3 phase, 4 wire delta, 2 CTs, no PTs

CIRCUIT

CLOSING

DEVICE

Reduce CT ratio by ½

16C06

CIRCUIT

CLOSING

DEVICE

Form 5S

3 phase, 4 wire wye, 3 CTs, 0 or 2 PTs

20E01

Form 5A

3 phase, 4 wire wye, 3 CTs, 0 or 2 PTs

20E01

CIRCUIT

CLOSING

DEVICE

KZY

Form 6S

3 phase, 4 wire wye, 3 CTs, 0 or 2 PTs

23E01

ALPHA meter

IL42-4001S

4 wire wye meters

Form 6A

3 phase, 4 wire wye, 3 CTs, 0 or 2 PTs

20E01

KZY

CIRCUIT

CLOSING

DEVICE

Form 9S

3 phase, 4 wire wye, 3 CTs, 0 or 3 PTs

23E01

CIRCUIT

CLOSING

DEVICE

23E01

Form 10S (Form 9S application)

3 phase, 4 wire wye, 3 CTs, 0 or 3 PTs

Does not strictly conform to the traditional Form 10S

wiring. It is intended for most 10S applications. One side

of each voltage section is wired common within the meter.

This wiring restricts the use of phase shifting trans-

formers to perform reactive measurement. If attempted,

equipment damage can occur.

Form 10A (Form 9A application)

3 phase, 4 wire wye, 3 CTs, 0 or 3 PTs

20E01

Form 16S (Form 14/16S application)

3 phase, 4 wire wye, self–contained

20E01

Form 16A (Form 14/16A application)

3 phase, 4 wire wye, self–contained

20E01

Form 26S

3 phase, 4 wire wye, 3 CTs, 0 or 2 PTs

CIRCUIT

CLOSING

DEVICE

KZY

20E01

Form 29S

3 phase, 4 wire wye, 3 CTs, 0 or 2 PTs

CIRCUIT

CLOSING

DEVICE

KZY

12B02

CIRCUIT

CLOSING

DEVICE

20E01

Form 35S

3 phase, 4 wire wye, 3 CTs, 0 or 2 PTs

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