bring digitalized measurement into your substation...the combined instrument transformer consists of...
TRANSCRIPT
High Voltage CONDIS® Solution: Combined Non-Conventional Instrument Transformer
Bring Digitalized Measurement Into Your Substation
Maxwell Technologies’ CONDIS® combined Non- Conven-
tional Instrument Transformer (NCIT) provides a digital
solution for measurement, protection and power quality
assessment within your substation.
The combined instrument transformer consists of an
Electronic Fiber-Optical Current Transformer (EFOCT)
and an Electronic Voltage Transformer with a Capacitive
Divider (EVTCD), integrated into a single unit. The digital
interface fully conforms to the IEC 61850 standard.
Patented optical fiber in the EFOCT enables highly
accurate digital measurements. The precise and reliable
EVTCD is based on our over 100 years of CONDIS®
technology innovation.
The CONDIS combined NCIT is easily integrated into existing
utility infrastructure to achieve a modernized substation.
Technical Principle of CONDIS® Combined NCIT
Key Features General Specifications*
• Combined current and voltage measurement in
compliance with IEC 60044 / IEC 61869.
• Integral design with a reduced footprint and weight.
• No inductive part and thus ferro-resonance free.
• No magnetic saturation during short circuit currents.
• Wide dynamic range for EFOCT.
• Full functionality during seismic and vibration events.
• Measuring circuit galvanically insulated.
• Fiber optic data transfer between digitizing block
and electronic processing unit.
Rated voltage kV 100 to 145
Rated primary current A 100 to 3000
Frequency Hz 50/60
Expanded frequency band - up to 50th harmonics
Operation temperature for NCIT °C -60 to +70
Operation temp. for electronic unit °C -10 to +40
Accuracy class for voltage meas. 0.2 prot. 3P
Accuracy class for current meas. 0.2S prot. 5TPE
Digital output specifications Standard IEC 61850-9-2LE IEC 61850-9-2 IEC 61850-8-1
Sample rate SV80; SV256; custom – up to 64 kps
* For more information or different specifications, please contact [email protected]
To phase 2
Phase 1
To phase 3 In switchyard
BUS
BUS
Lightsource
Fiber-optic circulator
Photoreceiver
PolarizerBirefringencemodulator
SYNCHTXRX
Polarizationtransformer
Fiber-opticcables
Mirror Bus-bar
EFOCTCombined
column
EVTCD
HV in HV out
Electronic processing units
A/Dconverter
Current D/A converter(optional)
Voltage D/A converter(optional)
Inside control room Cable length up to 1300 m.
Powersupply
1A
IEC 61850
PRP/HSR
SYNCH
100/√3V
SYNCHTXRX
Magneto-sensitive �ber
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www.condis.ch Toll Free International Phone Numbers: http://www.maxwell.com/products/toll-free
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Maxwell TechnologiesShanghai Representative OfficeUnit B 12th FloorHuarun Times Square500 Zhangyang Road, Pudong New AreaShanghai 200122, P.R. ChinaPhone: +86 21 3852 4000Fax: +86 21 3852 4099