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AC/DC CURRENT SENSOR CT6877

Raising the Bar for High-Accuracy Measurement

MORE INFO
SKU: CT6863-1 Category:

Description

Hioki pull-through AC/DC current sensors are best-in-class devices for use with power meters, Memory HiCorders and high performance oscilloscopes. The CT6877 is a DC to 1 MHz/2000A sensor, ideal for capturing current signals from switching power supplies, inverters, power conditioners, etc.

CAT III 1000 V

Key Features

• Easily measure large 2000A currents to meet applications in EV, HEV testing
• Improved noise resistance performance through a stronger shield lets you accurately measure current buried in noise
• High accuracy measurement realized through flat frequency characteristics and CMRR performance
• More enhanced environmental resistance performance than ever before lets you measure in -40 to 85°C situations
• Improved basic accuracy of ± 0.04% and phase accuracy of ± 0.1°
• Superior frequency characteristics of DC to 1 MHz (amplitude)
• Meet a wide range of applications from measuring battery charge/discharge to the secondary side of inverters in photovoltaic power generation and fuel cell evaluation, etc.
• Monitor waveforms when paired with oscilloscopes or Memory HiCorders and Sensor Unit

 

Through current sensor for 2000A

Most large currents are divided into two to four wires. In the past, it was necessary to measure wires individually using multiple current sensors due to the devices’ insufficient aperture size and current ratings. The optional Sensor Unit CT9557 provided functionality for adding together the sensors’ measured values in such setups and outputting the result as a single signal. Thanks to its large, 80 mm aperture, the CT6877 can accommodate four wires with an outer diameter of 31 mm (equivalent to a cross-sectional area of 250 mm2). In this way, a single sensor can be used to collectively measure wires carrying up to 2000 A.

Unparalleled technology driving the evolution of current measurement

Current sensor performance is maximized with the “Zero Flux (Fluxgate Detection)” measurement method. High frequency current is detected with windings (CT method), and direct to low frequency current is detected with fluxgates. Use of a newly developed opposed split coil* for the winding (CT) makes possible a broad measurement band, while strengthened shielding boosts anti-noise performance. *Opposed Split Coil: Coil in which divided windings are arranged opposite each other on a magnetic core to broaden the range of current detection

Broad frequency band

The CT6877 has a frequency band of DC to 1 MHz, placing it among the best-performing pass-through sensors rated for 2000 A and making it ideal for measuring currents being switched at high frequencies by SiC/GaN elements.

Guaranteed accuracy when used in combination with a power meter

Since the company develops both current sensors and power meters, Hioki is able to guarantee the combined accuracy of the products when used together for greater customer peace of mind. Used in conjunction with a high-precision power meter such as Hioki’s Power Analyzer PW6001, the CT6877 can measure currents with a high degree of accuracy. ● Example of the CT6877 being used with the Power Analyzer PW6001 From DC to 2 MHz, industry’s proven solution for high-accuracy power analysis. The PW6001 features a phase shift function for current sensors to lock in accurate measurement of high-frequency power. 5 MS/s sampling at 18-bit resolution ensures true power analysis of PWM waveforms and results that are free of aliasing error.

Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

Rated current 2000 A AC/DC
Max. allowable input Within the derating range, (within the specified range up to ±3200 Apeak )
Frequency characteristics Amplitude: DC to 1 MHz, Phase: DC to 700 kHz
Basic accuracy (DC, 45 Hz ≤ f ≤ 66 Hz) Amplitude: ±0.04 % rdg. ±0.008 % f.s., Phase: ±0.1°
Output voltage rate 1 mV / A rated (This device outputs AC+DC voltage via the Sensor Unit. Use with voltage input equipment with high input impedance such as 1 MΩ)
Max. rated voltage to earth 1000 V AC/DC (50/60 Hz, CAT III )
Core diameter φ 80 mm (3.15 in)
Operating temperature, humidity -40°C to +85°C (-40°F to 185°F), 80% RH or less (with no condensation)
Power supply Power suppled via the Power Analyzer PW6001, PW3390, or Sensor Unit CT9555, CT9556, CT9557
Max. rated power 9.5 VA max. (at 2000 A/55 Hz, ±12 V power requirement)
Dimensions and mass 229 mm (9.02 in)W × 232 mm (9.13 in)H × 112 mm (4.41 in)D, CT6877: 5 kg (176.4 oz), cable length 3 m (9.84 ft), CT6877-01: 5.3 kg (186.9 oz), cable length 10 m (32.81 ft)
Accessories Instruction manual ×1, Mark bands ×6, Operating precautions ×1

Catalogs

Catalog: AC/DC CURRENT SENSOR CT6877, CT6876, CT6875

Declaration of Conformity

AC/DC CURRENT SENSOR CT6877,CT6877-01

Options

Current sensors for the F/V Unit 8940

*To connect the current sensor via the conversion cable for the F/V Unit 8940, or using with the Power supply unit 9555-10.

 

CONVERSION CABLE 9705

0.2 m (0.66 ft) length, to connect the CT6841-6846, CT6863/6865, 9709, 9272-10 to the F/V Unit 8940, Cannot be used in combination with the CT6862

Option A

The CT9901 is for connecting the PW9100 to the 3390

 

CONVERSION CABLE CT9901

ME15W (12 pin) to PL23 (10 pin) connector

Option B

Only 1 unit of CT9902 can be used at any one time.

 

EXTENSION CABLE CT9902

5 m (16.41 ft) length, ME15W (12 pin) - ME15W (12 pin) connector

Options B

The CT9903 connects up to 2 cables in series, Cannot be used in combination with the 9277 to 9279

 

EXTENSION CABLE CT9903

5 m (16.41 ft) length, PL23 (10 pin) - PL23 (10 pin) connector

Other options for Input

 

CONNECTION CORD L9217

Cord has insulated BNC connectors at both ends, 1.6 m (5.25 ft) length

CONVERSION CABLE 9318

To connect the CT6841-6846, CT6865/63/62, 9709, 9272-10 to the 8971/40/51, 38 cm (14.96 in) length

CONNECTION CORD 9165

Cord has metallic BNC connectors at both ends, use at metallic terminal, 1.5 m (4.92 ft) length

PL23 (10-pin) - ME15W (12-pin) conversion

 

CONVERSION CABLE CT9900

Convert PL23 (10-pin) terminal to ME15W (12-pin) terminal

POWER SUPPLY for Current Sensors

*A separate power supply (CT955x) is required in order to use a high-precision current sensor.

 

SENSOR UNIT CT9557

• Power supply for current sensors when used alone • 4ch, with Waveform/Total Waveform/Total RMS output

SENSOR UNIT CT9556

• Power supply for current sensors when used alone • 1ch, with Waveform/RMS output

SENSOR UNIT CT9555

• Power supply for current sensors when used alone • 1ch, with Waveform output

Measure the Efficiency of Quick Chargers for Electric Vehicles (EVs) 

Evaluation of Input and Output Characteristics of Power Conditioners 

Comprehensive Evaluation of Inverter Motors 

Evaluate the Efficiency of a DC-DC Converter 

There are no drivers, firmware or software available for this product.

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