three-phase accumulation meter: em3030

Network & Customer Technology Code of Practice
NETWORK
Document No
Amendment No
Approved By
Approval Date
Review Date
:
:
:
:
:
CEOM8014.36
1
Network & Customer
Technology Manager
18/08/2014
18/08/2017
CEOM8014.36 THREE-PHASE ACCUMULATION METER: EM3030
This plan is copyright. No part may be reproduced by any process without written permission,
except as permitted under the copyright act.
DISCLAIMER
1
Essential Energy may change the information in this document without notice. All changes
take effect on the date made by Essential Energy. A print version is always an uncontrolled
copy. Before using this document, please ensure that it is still current.
2
This document may contain confidential information. Restrictions on the use and disclosure
of confidential information by employees are set out in your contract of employment.
Restrictions on the use and disclosure of confidential information by contractors are set out
in your contract of engagement with Essential Energy. Sub-contractors are bound by the
confidentiality provisions set out in their contract with the contractor engaged by Essential
Energy.
PO Box 5730 Port Macquarie NSW 2444 | Telephone: 13 2391 | essentialenergy.com.au
CEOM8014.36
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THREE-PHASE ACCUMULATION METER: EM3030
Amendment No: 1
CONTENTS
1.0
PURPOSE ............................................................................................................................. 3
2.0
SCOPE .................................................................................................................................. 3
3.0
REFERENCES ...................................................................................................................... 3
4.0
DEFINITIONS AND ABBREVIATIONS .................................................................................. 3
5.0
ACTIONS............................................................................................................................... 4
5.1
Description.................................................................................................................... 4
5.2
Installation .................................................................................................................... 5
5.3
Operation ...................................................................................................................... 6
6.0
AUTHORITIES AND RESPONSIBILITIES ............................................................................. 7
7.0
DOCUMENT CONTROL ........................................................................................................ 7
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THREE-PHASE ACCUMULATION METER: EM3030
1.0
Amendment No: 1
PURPOSE
To provide the information necessary for using the EM3030 three-phase accumulation meter within
the Company network.
2.0
SCOPE
Safety, regulatory and metrology aspects are not included.
3.0
REFERENCES
Internal
CEOP8027
Network Metering Standard
External
Landis & Gyr: EM3000 manual
4.0
DEFINITIONS AND ABBREVIATIONS
Document control
Employees who work with printed copies of document must check the BMS regularly to monitor
version control. Documents are considered “uncontrolled if printed”, as indicated in the footer.
Meter
Device that measures and records the flow of electrical energy.
Whole current (WC) meter
Meter through which the whole load current flows.
Accumulation meter
Meter that accumulates and registers only the total energy flow, in one direction.
Record keeping
Making and maintaining complete, accurate and reliable evidence of business transactions in the
form of recorded information (Source: AS records classification handbook – HB5031 – 2011.)
Review date
The review date displayed in the header of the document is the future date for review of this
document. The default period is three years from the date of approval however a review may be
mandated at any time where a need is identified due to changes in legislation, organisational
changes, restructures, occurrence of an incident or change in technology or work practice.
Secure Web Forms
The Company’s contractor management computer system.
CEOM8014.36
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THREE-PHASE ACCUMULATION METER: EM3030
5.0
ACTIONS
5.1
Description
5.1.1
Features
Amendment No: 1
Three-phase four wires, whole-current, accumulation meter;
accuracy class 1;
rating 230/240V, 50Hz;
125 A maximum; cannot be part of installations where maximum load exceeds 100 A
5.1.2
Connections
EM3030
general supply
main switch
A
B
C
N
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THREE-PHASE ACCUMULATION METER: EM3030
5.1.3
Amendment No: 1
Dimensions
EM3030 fits within the footprint of legacy meters, such as SDM, therefore minimizing the need for
drilling when replacing existing equipment.
6.7
175.
49
142.
99
Mounting Template
5.2
Installation
5.2.1
Commissioning checks
If only two phases are metered, bridge the unused phase and one of the used phases;
Confirm that wiring matches the diagram and there are no loose connections;
Power the installation and verify that:
o the display scrolls between “kWh imported” and “test”
o all segments are ON while displaying “test”
o there are no errors
Check that all three phase indicators are illuminated;
Apply a suitable load to the meter (e.g. household load or a 100W lamp, best applied to one
phase at a time) and confirm that the “kWh test” LED pulses; should the LED stay ON,
either energy is exported or the wiring is incorrect;
Correct faults, if any, and repeat commissioning procedure;
Seal the terminal cover in accordance with established guidelines; and
Complete paperwork via Secure Web Forms.
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THREE-PHASE ACCUMULATION METER: EM3030
5.3
Operation
5.3.1
Layout
phase indicators
Amendment No: 1
kWh test LED
display
terminal cover screws
5.3.2
Information retrieval
The display alternates between:
“test” (segment test) displays all available segments, and
R
8 8 8.8 8.8 8.8
kWh kvarh
RC
RI
accumulated imported energy in kWh, no decimal point - no register IDs
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THREE-PHASE ACCUMULATION METER: EM3030
Amendment No: 1
0000034
kWh
The red kWh test LED pulses at a rate of one pulse per one Wh imported energy. The light is
maintaining the same state (either ON or OFF) continuously while energy is exported.
5.3.2
Pulsed output
The pulsed outputs may be used ONLY by Company employees when approved by
Metering Services for a specific metering installation.
The two terminals at the bottom of the meter provide a pulse output for connection with other
devices. The output is an opto-coupler with a maximum rating of 32Vdc / 5mA.
Each pulse is 20ms wide and represents 10 Wh imported energy. The pulsed output should not be
used for metrology.
The security of the metering installation shall not be affected by pulsed output connections.
6.0
AUTHORITIES AND RESPONSIBILITIES
Network and Customer Technology Manager has the authority to approve this code of practice.
7.0
DOCUMENT CONTROL
Content Coordinator:
Technical Manager, Metering Services
Distribution Coordinator:
Technical Manager, Metering Services
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