Combined Low Power Instrument Transformer

CNCIT
CNCIT

Maxwell Technologies’ CONDIS® combined LPIT (Low Power Instrument Transformer) provides a digital measurement solution for revenue-metering, 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 LPIT is easily integrated into existing utility infrastructure to achieve a modernized substation.

Product features

ParameterValue
Rated voltage, kV100 to 145 *
Rated primary current, A100 to 3'000
Accuracy class according to IEC 61869
for measurements0.2S (for current), 0.2 (for voltage) *
for protection5TPE (for current); 3P (for voltage) *
Range of operating temperatures, °С
measuring sensor-60 to +70
electronic unit+5 to +40
Nominal load (analog output, per phase), VA:
for measurementsup to 5
Distance between sensor and electronic unit, mup to 1200
Power consumption, W100
*others on request

Output specifications

Digital
StandardIEC 61850-9-2LE SV80; SV256
IEC 61850-9-2
IEC 61850-8-1
Sample rateSV80; SV256;
TIMEIEEE 1588-2008 (PTPv2);
1PPS optical, electrical
RedundancyPRP; HSR
Analog (optional)
Voltage100/√3V 10VA
Current1A 10 VA