2000A Standard Current Transformer

An HM-HL Precise Standard Current Transformeris a highly accurate device used exclusively in laboratories and calibration centers to benchmark and verify the accuracy of other, lower-grade current transformers (CTs) and electrical measuring instruments.

Send Inquiry

Description

Technical Parameters

689src

The device is used as the current transformer calibration standard in the error test of the instrument transformer, also used to verify CT whose accuracy level is two levels lower or less then the standard current transformer.

1. High-ratio current transformer (CT) calibration: Testing ultra-high-ratio current transformers (e.g., 2000/5A, 3000/1A) used in substations, steel mills, and large manufacturing plants.

2. Energy Meter Type Testing and Certification: Used by manufacturers and calibration laboratories to verify the measurement accuracy of high-current energy meters for large industrial users.

3. Primary Injection Tester Validation: Verifies the accuracy of high-current testing equipment used by power maintenance personnel.

FjmUkNpV6dJAvo6ZXniw8hACnv8

1. Temperature: -5- +40℃

2. Humidity: <80%

3. Capacity: 5VA, 1VA COSφ=1

4. Primary current: 5-2000A

5. Secondary current: 5A, 1A

6. Accuracy level: 0.05S level

7. Rated voltage: 500V

8. Frequency: 50Hz

9. Long-term work under rated current is allowed, and the core is above 120A.

Capacity	5VA, COSØ=1	Frequency	50Hz
Primary Current	5~10000A	Secondary Current	1A, 5A
Accuracy Level	0.01(S),0.02(S)/0.05(S)	Rated Voltage	500V
Workplace should not have non-work related strong external electromagnetic field
low long-term working under rated current

FjmUkNpV6dJAvo6ZXniw8hACnv8

Product Features

1.The instrument is composed of primary winding and secondary winding.

2.Self-calibration of current ratio of 5/5 or 1/1

3.With casters for easy handling

4.Test in accordance with the nameplate indicating standard current ratio.

1.Current Transformer Structural Schematic Diagram

product-293-230

2.Current Transformer Self-Calibration Circuit Diagram

Additional Information

Alternative Names:

Ratio Standard Test Set

Primary Current Injection Test Set

Current Amplifier System with Reference Standard:

Current Comparator System (with Amplifier)

Precision Current Injection System

Traceable Current Calibrator

Reference Standard Current Source

High-Current Calibration System

CT Calibration System

Current Transformer Test Set (with Booster)

Precision Current Calibration Set

Q: What is this system, and what is its main purpose?

A: It is a high-precision calibration system used to generate and measure very high currents (thousands of amperes) with extreme accuracy. Its primary purpose is to test, calibrate, and certify large current transformers (CTs) and energy meters used in power systems and heavy industry.

Q: Why is a "current booster" needed with the standard transformer?

A: The HM-HL transformer alone cannot produce the high currents required to test large CTs. The booster acts as a "power amplifier," magnifying a lower input current to the high levels needed while the HM-HL transformer ensures precise measurement.

Q: What industries use this system?

A:It is critical for:

Power utilities(calibrating substation CTs for billing and protection).

Heavy industries(steel plants, smelters, data centers) to verify accuracy of high-current meters.

Calibration laboratoriesand meter manufacturers for certification.

Q: How accurate is this system?

A: The HM-HL transformer provides laboratory-grade accuracy, typically 0.01% to 0.05%, even at high currents amplified by the booster. This makes it 10–100 times more precise than typical industrial CTs.

Hot Tags: 2000A Standard Current Transformer, China 2000A Standard Current Transformer manufacturers, factory