Dent Instruments Ct-hmc-200-u 200a High Performance Midi Hinged Current Transformers Owner's Manual

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

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:

1. 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.
2. 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.
3. Connect the current transformer to the circuit or conductor you
   wish to measure. Ensure proper electrical connections and follow
   all relevant safety guidelines.
4. Once connected, the transformer will provide an output voltage
   of 333 mV when the current through the conductor reaches 200 A
   AC.
5. 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.
6. 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.

HIGH PERFORMANCE MIDI HINGED CURRENT TRANSFORMERS
200A

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 Output

1 – 300 A AC
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 Wire Polarity
Phasing Orientation Frequency Range
MECHANICAL
Case Material Leads Operating Temperature Storage Temperature

333 mV @ 200 A White = Hi, positive (+) Black = Low, negative (-) Arrow On Case Points Toward Load 50 to 400 Hz
White Nylon, UL 94 V-0 600V, 22 gage -15 to 60°C (5 to 140°F) -20 to 85°C (-4 to 185°F)

SAFETY
Working Voltage Dielectric Strength Safety Standards

600 VAC, Category III
5200 VAC for 1 minute
UL STD 61010-1 CAN/CSA STD C22.2 No. 61010-1
E186827

PART NUMBERS
200A Midi Hinged CT

3 M Leads CT-HMC-200-U

7 M Leads CT-HMC-200-U-7M

CONTACT US

DENT Instruments, Inc.
Energy & Power Measurement Solutions

925 SW Emkay Drive Bend, Oregon 97702 USA 541.388.4774 | 800.388.0770 www.DENTinstruments.com

Ratio Error

E186827

2.0% 1.5% 1.0% 0.5% 0.0%
0
-0.5% -1.0%

4.0

3.0

2.0

Phase Error

50

100

150

20 0

250

CT Primary Current (Amp s)

Ratio Error

1.0
0.0
300
-1.0
-2.0

All specifications contained in this document are subject to change without notice. © DENT INSTRUMENTS, INC. rev 030119

Phase Error

References

• Homepage - DENT Instruments