How to measure the energy when voltage and current are no
longer analogue values ?
Use sampled values according IEC61850 for today's AC- and future HVDC-transmission
EUW 2013
© Landis+Gyr | 16. October 2013 J.Widmer
1. Future challenges for the Transmission Grid
Limitations in today’s transmission system
​The challenge

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Construction of new routes for
transmission lines in Europe often not
possible.
With HVDC, new possibilities to connect
renewable generation to the existing
transmission network.
New solution with HVDC expands the
capacity of existing transmission lines
Use of 16.7 Hz for wind parks is in
discussion
Sampled values for AC and HVDC-metering in substations | © Landis+Gyr | 16. October 2013 J.Widmer
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How to integrate metering into IEC 61850 solutions?
​Close the gap
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Utilities introduce a new standard - IEC
61850 - for substation communication
and automation in interconnected grids
and integrated electric power systems.
IEC 61850 is a future-proof design
standard delivering customer benefits,
such as optimized installation, lower
engineering costs and interoperability of
the components
Up to now, metering has been the
missing link in providing complete IEC
61850 solutions for substations.
E880 is the solution for IEC61850
based substations using sampled values for
voltage and current
Sampled values for AC and HVDC-metering in substations | © Landis+Gyr | 16. October 2013 J.Widmer
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2. The solution
How to measure energy
when voltage and current are no longer analogue values?
Today with conventional VT/CT
Connection
Box
Control
Protection
Voltage
A/D
Billing
Meter
Connection
Box
Control
Protection
A/D
Billing
System
ZMQ 200
With non-conventional VT/CT
A/D
Sampled values
Control
Protection
Merging
unit
IEC 61850-9-2 LE
Ethernet
Billing
Meter
ZMQ 800
Billing
System
A/D
One fibre per phase
Sampled values for AC and HVDC-metering in substations | © Landis+Gyr | 16. October 2013 J.Widmer
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The new high end metering solution
for IEC 61850 based substations
E880 is the high precision meter for
non-conventional VT / CT (NCIT)
and IEC 61850 based substations

Generation, transmission, substation and grid
connected industrial consumers

„Use sampled values for voltage and current

Class 0.2S active, Class 0.5 reactive according
to IEC standards for conventional meters

„For all networks, voltages and currents
NCIT = Non Conventional Instrument Transformers
Sampled values for AC and HVDC-metering in substations | © Landis+Gyr | 16. October 2013 J.Widmer
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Accurate billing in new generation substations
​E880 key features

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Use of sampled values according to the IEC
61850-9-2 standard
Full compatibility with the customer’s existing
data acquisition system
Full compatibility (housing and connections
for outputs) with the existing E850 grid meter
family for conventional instrument
transformers
„Three independent communications channels
„Use of widely accepted DLMS communication
protocol for billing data readout
Input of sampled values:
Optical (fibre) or Ethernet (RJ45) possible
New grid meter technology
E880 is new system component for IEC 61850
based substations that enables energy
measurement and billing functions in one
device.
Sampled values for AC and HVDC-metering in substations | © Landis+Gyr | 16. October 2013 J.Widmer
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Seamless integration in existing E850 systems
Benefit:
Provide the worldwide successfully introduced
functionality of the proven E850

For metering values processing

Display

Communication

Storage of the values in profiles

Rack-mount housing for existing panels
with a wide range of connection possibilities

Tools (MAP110)
Sampled values for AC and HVDC-metering in substations | © Landis+Gyr | 16. October 2013 J.Widmer
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Investment protection

Full compatibility with the customer’s
existing data acquisition system

Use of the widely accepted DLMS
communication protocol

Same modular communication units as used
in E850 (PSTN, Ethernet, GPRS)

Use of the proven MAP tools for
parameterization
E880 connects the IEC 61850 based «substation world» with the DLMS based «metering world»
Sampled values for AC and HVDC-metering in substations | © Landis+Gyr | 16. October 2013 J.Widmer
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Future-proof solution

Use of sampled values for billing and
diagnostics in new generation IEC 61850based substations

A single meter family serves all application
for conventional and non-conventional
instrument transformers

Smooth integration of sampled values
based metering in existing substations
Sampled values for AC and HVDC-metering in substations | © Landis+Gyr | 16. October 2013 J.Widmer
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Cost efficiency

No converter for sampled values needed.
Interim solutions with optical fibre as input
and conventional 100V, 5 A as output

Full compatibility (housing and connections
for outputs) with the existing E850 grid
meter family

Use proven and widely accepted ESSAILEC
connector system for all outputs

Input for sampled values adaptable to the
substation environment:
- Optical with fibre (100 base FX)
- Electrical Ethernet with RJ45 (10 base TX)
cover all needs
Sampled values for AC and HVDC-metering in substations | © Landis+Gyr | 16. October 2013 J.Widmer
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3. References
E880 worldwide projects and running installations
Operational installations
in substations from all
important European suppliers
Sampled values for AC and HVDC-metering in substations | © Landis+Gyr | 16. October 2013 J.Widmer
Customer project in operation
220 kV
1500 A
Operative installation
Pilot installation
Meter ZMQ202
Meter ZMQ 202
CT with
4 cores
Control
Meter ZMQ802
Existing
BKW
meter
read-out
system
Protection A
Protection B
Fault recorder
NCIT
samples for U and I
80 samples /20ms
Merging Unit 1
Protection A
Merging Unit 2
Protection B
Source:
BKW/FMB, Bern
NCIT = Non Conventional Instrument Transformer
Sampled values for AC and HVDC-metering in substations | © Landis+Gyr | 16. October 2013 J.Widmer
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Sensors for voltage and current (Examples)
​Varity of solutions are available on the market and in operation
Source: ALSTOM Grid
Source: ABB review special report p14
Source:
ABB FOCS
Source: ABB
Sampled values for AC and HVDC-metering in substations | © Landis+Gyr | 16. October 2013 J.Widmer
Source: arteche COPEL Brazil
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4. Conclusion
Summary
​With E880 grid meter you get:
Powerful multi-functional
processing system from
proven E850 that exceeds
the industry requirements
No additional investment in
metering system integration
Possibility for future change of
communication channels
Seamless
integration
in existing
Investment
protection
Futureproof
solution
Cost
efficiency
Sampled values for AC and HVDC-metering in substations | © Landis+Gyr | 16. October 2013 J.Widmer
New protocol and
engineering standard IEC
61850 supports futureproof substation design
Same housing and
connections for outputs
can be used for both
meters (E850 and E880)
Easy installation in existing
substation
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E880: Metering for renewable energy production
However you transmit renewable energy to the network
50 Hz
60 Hz
HVDC
16.7 Hz
Landis+Gyr provides you with the metering solution
E880, the meter for sampled values according IEC 61850-9-2
with sensors from our partners and substations providers
Sampled values for AC and HVDC-metering in substations | © Landis+Gyr | 16. October 2013 J.Widmer
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Thank you for your attention
Enjoy Utility week