Standard Current Transformer HLB-32G series

5-3200A current transformer design.

Adopting two stage principles to ensure excellent accuracy.

Accuracy class: 0.005.

Operating range: (1-120%)In.

Approx 50kgs.

Current transformer integrated with source can be optional.

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Features

Technical Index

More ratios to ensure good accuracy.

5 to 3200A current transformer design (more current ranges optional according to client requirements).

Used for precision measurement of AC current or calibration of instrument current transformer.

Can be installed on a bus bar can be used with a primary conductor consisting of turn numbers.

Designed with a tapped primary & secondary windings to ensure a large number of ratios over a range 5 to 3200A (or more as option).

Adopting “two stage principles” to ensure excellent accuracy and also allow to run long leads between CT and load but not degrading CT accuracy.

Adopting advanced design technology to ensure that it can be used in severe magnetic environment and also not affected by position of primary conductor in the hole or in the location of return conductor.

With facility to test the performance of CT and verify its own accuracy.

CT ratio selection switch is optional and if customer need, it can be provided by adjust the design structure, then can select mentioned CT ratios but no need changing secondary.

Note:

1) Also can offer standard current transformer integrated with source (3200A CT with 4000A & 8.8KVA source; 2000A CT with 2400A & 8.8KVA source).

2) Photo design mentioned in the brochure is as a reference, final design possibly will have change after customer inform special & optional requirements.

3) If choosing bigger one design, customer can reduce a lot of time when applying turns.

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Primary
Wound primary winding	5….100A or 5….480A, 50/60HZ (more option available)
Applied primary	Applied primary: 100….3200A (1…10, maximum 12turns) or 480A-3200A (1-2 turns) (more option available)
Rated Secondary	1A (model No.HLB-32G/1), 5A (model No.HLB-32G/5)Or 1A&5A combined (model No.HLB-32G/1-5)
Test Primary	A 2000 ampere-turn winding provided for self test of CT
Accuracy	0.005%(or 0.002% as option)
Duty cycle	Continuous upto 3200A, and 30 minutes or more at 4000A
Secondary winding design	8Taps at 0, 100, 200, 1500, 1600, 2000, 2500, 3200 amperes to turns
Ratios available with customer applied primary winding	100, 120, 125, 130, 140, 150, 160, 175, 180, 200, 225, 240, 250, 260, 280, 300, 320, 325, 350, 360, 375, 400, 450, 480, 500, 600, 625, 640, 650, 700, 750, 800, 900, 1000, 1200, 1250,1300, 1400, 1500, 1600, 1800, 2000, 2400, 2500, 3000, 3200A
Ratio available with pre-wound primary winding	100, 90, 80, 75, 70, 65, 62.5, 60, 50, 45, 40, 37.5, 35, 32.5, 31.25,30,25, 24, 20, 18, 16, 15, 14,13,12.5, 12, 10, 9, 8, 7.5, 7, 6.5, 6.25, 6, 5, 4.5, 4, 3.75, 3.5, 3.25, 3.125, 3, 2.5
Rated secondary burden	5VA (model No.HLB-32G/5)0.2VA (model No.HLB-32G/1) 5VA at I2 = 5A, Burden is 0.2VA at I2 = 1A (model No.HLB-32G/1-5)
Power factor	COSΦ=1.0
Operating range	(1%-120%)In
Frequency	50/60HZ
Voltage level	AC 600V
Withstand voltage	2000V 1min
Insulating medium	air
Dimension of feed through hole	Φ140mm
Size	Smaller one: Approx 590mm400mm240mm (design with applied primary 1-10, maximum 12 turns)Bigger one: Approx 590mm400mm600mm (design with applied primary 1-2 turns)
Weight	approx 50kgs
Accessories	3.5meters length secondary cable with connectors