DENT INSTRUMENTS CT-HMC-200-U 200A High Performance Midi Hinged Current Transformers Owner’s Manual

: June 12, 2024
: DENT INSTRUMENTS

Table of Contents

DENT INSTRUMENTS CT-HMC-200-U 200A High-Performance Midi Hinged Current
Product Information
Product Usage Instructions
KEY SPECIFICATIONS
ELECTRICAL
MECHANICAL
SAFETY
DIMENSION
FLOW CHART
References
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DENT INSTRUMENTS CT-HMC-200-U 200A High-Performance Midi Hinged Current

Transformers

DENT-INSTRUMENTS-CT-HMC-200-U-200A High-Performance-Midi-Hinged-Current-
Transformers-PRODUCT

Product Information

`The High-Performance Midi Hinged Current Transformers are medium amperage transformers designed for various applications such as current measurement, energy metering, load surveys, demand metering, energy research, and submetering. These transformers offer high performance and accuracy.

Key Specifications

Window Size: 25mm (1.0″)
Current Range Output: 1 – 300 A AC
Output Voltage: 333 mV @ 200 A AC
*Ratio Error:** (No information provided)

Ratio Error refers to the deviation in the transformation ratio of the current transformer.

Product Usage Instructions

To use the High-Performance Midi-Hinged Current Transformers, follow these steps:

Identify the appropriate window size for your application. The window size should be compatible with the size of the conductor or cable you are measuring.
Ensure that the current range output is suitable for your measurement requirements. The current range should be within the range of 1 to 300 A AC.
Connect the current transformer to the circuit or conductor you wish to measure. Ensure proper electrical connections and follow all relevant safety guidelines.
Once connected, the transformer will provide an output voltage of 333 mV when the current through the conductor reaches 200 AAC.
If you need to calculate the actual current based on the output voltage, use the conversion factor of 1.67 mV/A AC. Multiply the output voltage by this factor to obtain the corresponding current value.
Monitor and record the measured current for your desired application, such as energy metering or load surveys.

Remember to consult the product manual for any additional instructions or safety precautions specific to your application.
The hinged “Midi” CTs are high-performance, medium amperage, hinged current transformers. Use for current measurement, energy metering, load surveys, demand metering, energy research, and submetering

KEY SPECIFICATIONS

Window Size 25mm (1.0”)
Current Range 1 – 300 A AC
Output 333 mV @ 200 A AC 1.67 mV/A AC
Ratio Error* <1.0 % from 1.0 A to 300 A AC (typical)
Phase Error* <0.5° from 1.0 A to 300 A AC

For maximum performance, keep CT contact surfaces wiped clean and free of debris.

ELECTRICAL

Output 333 mV @ 200 A
Wire Polarity White = Hi, positive (+) Black = Low, negative (-)
Phasing Arrow On Case Points
Orientation Toward Load
Frequency Range 50 to 400 Hz

MECHANICAL

Case Material White Nylon, UL 94 V-0
Leads 600V, 22 gage
Operating Temperature -15 to 60°C (5 to 140°F)
Storage Temperature -20 to 85°C (-4 to 185°F)

SAFETY

Working Voltage 600 VAC, Category III
Dielectric Strength 5200 VAC for 1 minute
Safety Standards UL STD 61010-1 CAN/CSA STD C22.2 No. 61010-1

PART NUMBERS

All specifications contained in this document are subject to change without notice.© DENT INSTRUMENTS, INC.rev 030119
DENT Instruments, Inc.
Energy & Power Measurement Solutions