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Energy Meter Type Evaluation Solution 1-TD3700 Energy Meter Power Frequency Magnetic Field Test Device

Publish Time: 2024-07-22 Origin: Site

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1. TD3700 Energy Meter Power Frequency Magnetic Field Test Device

• The TD3700 tests the impact of AC magnetic fields on energy meters.

• It includes an AC excitation current source, ring coil, DUT workbench, motor control system, three-phase energy meter testing device, computer, and automatic test software.

• The device generates a programmable and adjustable power frequency AC magnetic field ranging from 0 to 1200 A/m, and can be used with the energy meter testing device to conduct power frequency magnetic field and interference tests.

2. Features

• The ring coil is powered by a precision AC current source, generating a programmable, adjustable power frequency AC magnetic field from 0 to 1200 A/m and a phase of 0 to 360°.

• Precision stepper motors control the ring coil and meter platform, allowing rotation from 0 to 360°.

• The computer controls the rotation angle to apply the AC magnetic field in all directions to the energy meter.

• The AC magnetic field phase and meter working voltage can be adjusted from 0 to 360°.

• Computer testing software enables fully automatic and semi-automatic tests of the AC magnetic field's impact on energy meters.

• Automatic testing includes adjusting the AC magnetic field, calibrating the meter's error value and magnetic field influence at each point, and controlling the rotation of the ring coil and meter platform.

• The software offers comprehensive data management, easy retrieval, and automatic backup.

• It can also generate calibration certificates and test reports.

3. Instrument Appearance

☆ Instrument Appearance

NO.	Function
	Excitation Coil: Generates a programmable, adjustable Power Frequency AC Magnetic Field from 0 to 1200 A/m and can rotate 360°.
	Meter Tray: Equipped with all meter test terminals, it can perform error tests and rotate 360°.
	Manual Control Area: Allows manual control of the coil and meter tray rotation to adjust the magnetic field direction manually.
	Control Station: Controls magnetic field strength and three-phase meter calibration output for manual testing.
	Standard power source for excitation power supply and three-phase energy meter calibration device.

4. Specifications

Power Frequency AC Magnetic Field Index	Magnetic Field Adjustment Range	0～1200 A/m
	Adjust Fineness	1 A/m
	AC Magnetic Field Stability	0.05%
	Optimal Measurement Uncertainty (k=2)	20 A/m
	AC Magnetic Field Phase Adjustment Range	0～360°
	Phase Adjustment Fineness	0.01°
Class 0.05 Three-phase Energy Meter Testing Device Index	Voltage Output Range	30 V～456 V
	Current Output Range	5 mA～120 A
	Frequency Range	45 Hz～65 Hz
	Power Source Stability	0.02% / 2min
	Power/Energy Accuracy	Class 0.05

5. General Specification

Power Supply	Single-phase AC ( 220 ± 22 ) V, ( 50 ± 2 ) Hz
Preheat Time	30 mins
Temperature Performance	Working temperature: 5°C~45°C; Storage temperature: -10°C~55°C
Humidity Performance	Working humidity: < 80% @ 30°C, < 70% @ 40°C, < 40% @ 50°C Storage humidity: (20%~80%) R H, non-condensing
Altitude	< 3000 m
Communication Interface	RS232
Size (Workbench included)	3300 mm (W) x 1100 mm (D) x 1400 mm (H)

In the next article, we will introduce another device for energy meter type evaluation-TD3710 Energy Meter Constant Magnetic Field Test Device.