Shanghai Huabang Industrial Business Network - Precision Transformer

[Precision Transformer]HLMZ-0.66 High precision current transformer

2026-6-15 20:40:10

HLMZ-0.66 high-precision current transformer

[Precision Transformer]HG type standard voltage transformer

2026-6-15 20:40:01

HG type standard voltage transformers are mainly designed and manufactured for grassroots power supply and production departments according to the actual needs of transformer manufacturers. Our company has inflatable voltage standard transformers, oil immersed standard voltage transformers, and dry-type standard voltage transformers.

Characteristics of HG type standard voltage transformer
Compact structure, small size, easy to carry;
No maintenance required, simple wiring and operation;
Standard transformers with 5VA secondary load can be customized, and standard transformers with 0.2VA secondary load can be supplied in stock

Technical specifications of HG type standard voltage transformer
Primary voltage: 6KV~220KV
Secondary voltage: 100V, 100/�� 3V, 100/3V
Voltage range: 20% to 120%
Power factor: COS ��=0.8,1.0
Accuracy level: 0.05-0.01 level

[Precision Transformer]HJ9-1~5 Type Instrument Voltage Transformers

2026-6-15 20:39:50

The HJ9-1-5 series instrument voltage transformers are suitable for measurement in single-phase AC circuits with a rated voltage of 1kV-10kV and a rated frequency of 50Hz.

[Precision Transformer]HJ35 Type Instrument Voltage Transformer

2026-6-15 20:39:41

The HJ35 instrument voltage transformer is suitable for measurement in single-phase AC circuits with a rated voltage of 0.5kV and a rated frequency of 50Hz.

[Precision Transformer]DMG series standard transformers

2026-6-15 20:39:32

number	inductance	accuracy	structure
DMGa~DMGc	1mH~0.1H	0.2%	Ceramic skeleton Plastic skeleton
Scale: 14 * 14 * 10cm^three��15*h160cm^two			Weight: 1.7kg

DMG series standard transformer

[Precision Transformer]GB Standard Transformer

2026-6-15 20:39:23

model	inductance	accuracy	structure
DMGa~DMGc	1mH~0.1H	0.2%	Ceramic skeleton Plastic skeleton
Scale: 14 * 14 * 10cm^three��15*h160cm^two			Weight: 1.7kg

GB standard transformer

[Precision Transformer]GA Standard Transformer

2026-6-15 20:39:13

model	inductance	accuracy	structure
DMGa~DMGc	1mH~0.1H	0.2%	Ceramic skeleton Plastic skeleton
Scale: 14 * 14 * 10cm^three��15*h160cm^two			Weight: 1.7kg

GA standard transformer

[Precision Transformer]GC Standard Transformer

2026-6-15 20:39:04

model	inductance	accuracy	structure
DMGa~DMGc	1mH~0.1H	0.2%	Ceramic skeleton Plastic skeleton
Scale: 14 * 14 * 10cm^three��15*h160cm^two			Weight: 1.7kg

GC standard transformer

[Precision Transformer]HJ series standard voltage transformers

2026-6-15 20:38:53

HJ series standard voltage transformer

1. High accuracy voltage transformers ranging from 0.0005 to 0.001 levels
Rated voltage ratio: 60-600V/100V
Accuracy level: 0.0005-0.001 level

Features: High accuracy, good stability
Purpose: Used to expand the voltage range of 0.005-0.01 level digital power meters such as C1-1 and C1-2.
Application: It has been adopted by the National Institute of Metrology and the China Electric Power Research Institute in the national energy benchmark device and the highest three-phase energy standard device of the power system, to expand the voltage range,
It has been widely used in the metrology and power sectors.

2. Portable precision voltage transformer
Rated voltage ratio: 6 (6/), 10 (10/) KV/100V (100V/)
Accuracy level: 0.02-0.01 level
Features: Small size, light weight, easy to carry
Purpose: Used as a calibration standard for voltage transformers
3. Precision voltage transformer
Rated voltage ratio: 60-750V/100/~150V
Accuracy level: 0.005-0.05
Purpose: Used for installation on precision electric energy meters or electrical measuring instruments inspection tables or for precision measurement
4. Small and micro high-precision voltage transformers
Rated voltage ratio: 60-600V/3V, 1V
Accuracy level: 0.001-0.02 level
Features: High accuracy, small size, light weight
Purpose: For installation in digital power meters
Application situation: It has been installed in the 0.01~0.1 level digital power meter produced by the manufacturer.
5. 0.0002 level high-precision dual stage voltage transformer
Rated voltage ratio: 10KV/100V
Accuracy level: 0.0002 level
Features: High accuracy, good stability
Purpose: Used as a voltage ratio standard for calibrating standard voltage transformers of 0.001 level and below.
6. Multi channel isolated precision voltage transformer
Rated voltage ratio: �� 220V (power supply)/220V (multiple channels)
�� 60-100-220-380V/60-100-220-380V (multiple channels)
Accuracy level: 0.01 to 0.05
Characteristics: Accurate and reliable
Purpose: Used for electric energy meter calibration platform

[Precision Transformer]HL57 Type 0.1 Class Current Transformer

2026-6-15 20:38:44

The iron core of HL57 type 0.1 level current transformer is made by winding a specially treated high permeability soft magnetic alloy strip. The coil winding adopts the segmented winding method, ensuring that the transformer error is small and the working frequency is 50Hz. This transformer fully complies with the GB1208 national standard.

model	product name	Main technical indicators			Characteristics and Applications
		Quantity limit	Overall dimensions	Factory price (yuan)
HL57	current transformer	Beginner: 0.1/0.2/0.25/0.5/1/2/2.5/10/15/20/25/50/75/100A Secondary: 5A working voltage �� 500V frequency 50HZ rated load 10VA	360x230x211mm	four thousand	Internal current comparator, follow-up amplifier, automatic balancing weight �� 13kg
HL57-1	current transformer	0.1/0.15/0.2/0.25/0.3/0.4/0.5/0.6/0.75/1/ 1.5/2/2.5/3/4/5/6/7.5/8/10/15/20/25/30/40/50A Secondary: 5A working voltage �� 500V frequency 50HZ rated load 10VA

HL57 type 0.1 level current transformer

[Precision Transformer]HL3-0.2 Instrument precision current transformer

2026-6-15 20:38:34

HL1 (A) -0.2 instrument precision current transformer

[Precision Transformer]HL23-5 Instrument precision current transformer

2026-6-15 20:38:24

The precision current transformer for HL23-5 instrument has an accuracy of 0.2, 0.1, 0.05, 0.02, and 0.01 levels, with a primary current of 0.05-5000 amperes and secondary currents of 5, 1, 0.5, and 0.4 amperes. The product has the advantages of reasonable parameter selection, appropriate compensation, stable performance, large margin of error, and good appearance quality

HL23-5 instrument precision current transformer

[Precision Transformer]HL55 Instrument precision current transformer

2026-6-15 20:38:16

HL55 instrument precision current transformer

HL55/HL55A current transformer

Junior: 10/20/50/100/150/200/300/600A,
Secondary: 5A,
Working voltage �� 500V,
Working frequency: 50Hz,
Rated load: 5VA

Level 0.2
0.1 level
Instrument expansion limit
Weight �� 3Kg
Aperture: 37mm

HL55-1/HL55-A current transformer

Primary: 10/20/50/100/150/200/300/600A, Secondary: 1A, Operating voltage �� 500V, Operating frequency: 50HZ, Rated load: 5VA
Level 0.2
0.1 level

[Precision Transformer]HL70 Instrument precision current transformer

2026-6-15 20:38:07

Application range of HL70 HL-0.5 series precision current transformer

HL type precision current transformer is used in conjunction with a transformer calibrator and testing equipment to calibrate current transformers that are one to two levels lower than it; It can also be used to expand the limit device and measure current, power, and electrical energy in conjunction with corresponding precision instruments.

model	Main technical indicators
model	standard degree level	power factor	Rated load (VA)	Primary current (A)
HL1	zero point two	zero point eight	five	Fixed: 15, 50 Thread through: 100-150-200-300-600
HL1A	zero point one	0.8-1	ten	Fixed: 15, 50 Thread through: 100-150-200-300-600
HL2	zero point two	zero point eight	ten	100-150-200-250-300-400-500-600-750-800-1000-1200-1500-2000
HL3	zero point two	zero point eight	ten	0.5-1-2-5-10-20-50
HL5-1	zero point one	0.8 or 1	five	5-6-7.5-10-15-20-25-30-40-50-60-75-100-150-200-250-300-500-600-750-800-1000
HL16	zero point one	0.8-1	ten	300-400-500-600-750-1000-1500-2000-3000-4000
HL18	zero point one	0.8-1	five	5-6-7.5-10-15-20-25-30-40-50-60-75-100-150-200-250-300-400-500
HL19	zero point one	0.8-1	five	500-600-750-800-1000-2000-3000-4000-5000
HL23	zero point one	0.8 or 1	five	0.5-1-2.5-5-10-25-50-100-150-200-250-300-400-500-600-700-750-1000-1200-1400-1500-1800-2000
HL23-1	zero point two	zero point eight	ten	0.5-1-2.5-5-10-25-50-100-150-200-250-300-400-500-600-700-750-1000-1200-1400-1500-1800-2000
HL23-2				5-10-25-50-100-150-200-250-300-400-500-600-700-750-1000-1200-1400-1500-1800-2000
HL23-3				15-30-50-75-150-200-300-400-600-700-800-1200-1400-1600
HL23-4				10-25-50-100-150-200-250-300-400-500-600-700-750-1000-1200-1400
HL23-5				0.25-0.5-1-2.5-5-10-25-50-100-150-200-250-300-400-500-600-700-750-900-1000-1200-1400-1500-1800-2000
HL23-9	zero point one	zero point eight	ten	0.1-0.25-0.5-1-2.5-5-10-25-50-100
HL24-1	zero point two	zero point eight	ten	10-25-50-100-150-200-300-600
HL24-2	zero point two			10-25-50-100-200-250-500-1000
HL24-1A	zero point one			10-25-50-100-150-200-300-600
HL24-2A				10-25-50-100-200-250-500-1000
HL24-2A				0.5-1-2-2.5-5-10-15-20-25-30-50-75-100
HL32-1	zero point one	0.8-1	five	0.5-1-2-2.5-5-10-15-20-25-30-50-75-100
HL32-2	zero point one	0.8-1	ten	0.5-2-2.5-5-10-15-20-25-30-50-75-100
HL34	zero point zero two	one	five	5-7.5-10-15-20-25-30-40-50-60-75-100-150-200-250-300
HL35	zero point one	one	five	0.5-0.75-1-1.5-2-2.5-3-4-5-7.5-10-15-20-25-30-40-50-60-75-100-150-200-250-300
HL35-1	zero point one	0.8-1	ten	0.5-0.75-1-1.5-2-2.5-3-4-5-7.5-10-15-20-25-30-40-50-75-100
HL35-2				5-7.5-10-15-20-25-30-40-50-60-75-80-100-120-150-200-250-300-400-500-600-750-800-1000-1500-2500-3000-4000-5000
HL35-4				15-20-25-30-40-50-60-80-100-150-200-250-300-400-500-600
HL36	zero point two	zero point eight	ten	100-150-200-250-300-400-500-600-750-800-1000-1200-1500-2000
HL36A	zero point one	zero point eight	ten	100-150-200-250-300-400-500-600-750-800-1000-1200-1500-2000
HL36-1	zero point two	zero point eight	five	100-150-200-250-300-400-500-600-750-800-1000-1200-1500-2000 (secondary 1A)
HL36-1A	zero point one	zero point eight	five	100-150-200-250-300-400-500-600-750-800-1000-1200-1500-2000 (secondary 1A)
HL37-4	zero point two	0.8-1	ten	15-20-25-30-40-50-60-80-100-150-200-250-300-400-500-600
HL41	zero point one	0.8-1	five	0.1-0.15-0.2-0.25-0.3-0.4-0.5-0.6-0.75-1-1.5-2-2.5-3-4-5-6-7.5-10-15-20-25-30-40-50-60-75-80-100
HL42	zero point two	0.8-1	five	0.1-0.15-0.2-0.25-0.3-0.4-0.5-0.6-0.75-1-1.5-2-2.5-3-4-5-7.5-10-15-20-25-30-40-50-75-80-100
HL50A	zero point zero five	one	ten	5-7.5-10-15-20-25-30-40-50-60-75-80-100-120-150-200-250-300-400-500-600-750-800-1000-1200-1500-2000-2500-3000-4000-5000-6000-7500-8000-10000
HL55	zero point two	0.8-1	five	Terminal: 10-20-50 Thread through: 100-150-200-300-600
HL55A	zero point one	0.8-1	five	Terminal: 10-20-50 Thread through: 100-150-200-300-600
HL55-1	zero point two	0.8-1	five	Terminal: 10-20-50 Thread through: 100-150-200-300-600 (secondary 1A)
HL55-1A	zero point one	0.8-1	five	Terminal: 10-20-50 Thread through: 100-150-200-300-600 (secondary 1A)
HL55T	zero point two	zero point two	five	Terminal: 5-20-100 Thread through: 200-300-600
HL55T	zero point two	zero point two	five	0.1-0.15-0.2-0.25-0.3-0.4-0.5-0.6-0.75-1-1.5-2-2.5-3-4-5-6-7.5-10-15-20-25-30-40-50-60-75-80-100
HL79	zero point zero five	zero point eight	five
HL79		zero point eight	seven point five
HL79-1		one	5/7.5	0.1-0.15-0.2-0.25-0.3-0.4-0.5-0.6-0.75-1-1.5-2-2.5-3-4-5-6-7.5-10-15-20-25-30-40-50-60-75-80-100
HL79-2		0.8-1	five	0.1-0.15-0.25-0.3-0.4-0.5-0.6-0.75-1-1.5-2-2.5-3-4-5-6-7.5-10-15-20-25-30-40-50-60-75-80-100
HL79-3		one	five	5-7.5-10-15-20-25-30-40-50-60-75-100-150-200-250-300
HL79-4			five	5-7.5-10-15-20-25-30-40-50-60-75-80-100-120-150-200-250-300-400-500-600-750-800-1000-1500-2000-2500-3000-4000-5000
HL79-4			ten
HL79-5			ten	0.1-0.15-0.2-0.25-0.3-0.4-0.5-0.6-0.75-1-1.5-2-2.5-3-4-5-6-7.5-10-15-20-30-40-50-60-75-80-100
HL79-5			ten	0.1-0.15-0.2-0.25-0.3-0.4-0.5-0.6-0.75-1-1.5-2-2.5-3-4-5-6-7.5-10-15-20-25-30-40-50-60-75-80-100
HL94	zero point zero two	zero point eight	five
HL94		zero point eight	seven point five
HL94-1		one	five	0.1-0.15-0.2-0.25-0.3-0.4-0.5-0.6-0.75-1-1.5-2-2.5-3-4-5-6-7.5-10-15-20-25-30-40-50-60-75-80-100
HL94-2		0.8 or 1	ten	0.1-0.15-0.2-0.25-0.3-0.4-0.5-0.6-0.75-1-1.5-2-2.5-3-4-5-6-7.5-10-15-20-25-30-40-50-60-75-80-100
HL94-3		0.8-1	five	0.1-0.15-0.2-0.25-0.3-0.4-0.5-0.6-0.75-1-1.5-2-2.5-3-4-5-6-7.5-10-15-20-25-30-40-50-60-75-80-100
HL94A	zero point zero one	zero point eight	five	0.1-0.15-0.2-0.25-0.3-0.4-0.5-0.6-0.75-1-1.5-2-2.5-3-4-5-6-7.5-10-15-20-25-30-40-50-60-75-80-100
HL94B	zero point zero one	one	seven point five	0.1-0.15-0.2-0.25-0.3-0.4-0.5-0.6-0.75-1-1.5-2-3-4-5-6-7.5-10-15-20-30-40-50-60-75-80-100
HLS3	zero point one	zero point eight	five	5A-1000A (with 100A or higher core penetration, equipped with a built-in current regulator)
HLS5	zero point one	zero point five	five	5A-2000A (Over 500A core, with built-in current regulator)

HL70 instrument precision current transformer

[Precision Transformer]HL36 Instrument precision current transformer

2026-6-15 20:37:58

Application range of HL36, HL36A, HL36-1, HL36-1A series precision current transformers

HL36, HL36A, HL36-1, HL36-1A precision current transformers are used in conjunction with transformer calibrators and testing equipment to calibrate current transformers that are one to two levels lower than them; It can also be used to expand the limit device and measure current, power, and electrical energy in conjunction with corresponding precision instruments.

model	Product Name	Main technical indicators		Characteristics and Applications
		Quantity limit	Overall dimensions
HL36 HL36A	current transformer	Junior: 100/150/200/300/400/500/600/750/800/1000/1200/1500/2000A Secondary: 5A working voltage �� 500V frequency 50HZ rated load 10VA Aperture: 75mm	200×189×89 mm	zero point two zero point one
HL36-1 HL36-1A	current transformer	Amperage: 100A150A 200A 250A 300A 500A 600A Number of through turns: 12 8 6 6 4 3 2 Amperage: 750A800A 1000A 1200A 1500A 2000A Number of through turns: 2 2 1 1 1 1 1 Primary: Same as above Secondary: 1A		zero point two zero point one

HL36 instrument precision current transformer

[Precision Transformer]HJF type inductive voltage divider

2026-6-15 20:37:49

The HJF1 induction voltage divider adopts high nickel Permalloy as the magnetic material, and is uniformly wound with high-strength ester coated wire, with a reasonable and reliable structure. Mainly used for verifying voltage transformers with different voltage ratios from standard voltage transformers (including different primary or secondary voltages). This instrument consists of two parts: a two-stage voltage transformer and an inductive voltage divider. The secondary coil of the two-stage voltage transformer serves as the input coil of the voltage divider. Adopting this structure can not only improve the input impedance but also increase the output voltage of the inductive voltage divider. At this time, the inductive voltage divider is used for boosting. This device has high accuracy, small size, light weight, and easy to use.

Main technical indicators:
·Accuracy level: 0.005 level
·Input voltage: 100V, 150V, 300V, 600V
·Output voltage: 0.001V-11.11V
·Rated frequency: 50Hz
·Overload capacity: 1.5 times
·Dimensions (mm): 360 × 240 × 180
·Weight: Approximately 8kg

[Precision Transformer]HJS-35 Type Self Boosting Precision Voltage Transformer

2026-6-15 20:37:39

The HJS type precision voltage transformer is made of cold-rolled oriented silicon steel sheets with high magnetic density and permeability, which are rolled and heat-treated. It has independent boosters and transformers inside. The booster adopts magnetic shielding, and the high voltage output of the booster is connected in parallel with the primary voltage winding of the standard transformer through the high voltage terminal as the boost output, providing high voltage to the tested voltage transformer. The transformer adopts a fully insulated structure between high and low voltage, and the high voltage winding uses special materials and effective oil-free insulation technology, eliminating the disadvantages of oil immersed boosters.

Main technical indicators:
·Rated primary voltage: 35KV
·Rated secondary voltage: 100V, 100/3V, 100/3V
·Accuracy: 0.01, 0.02, 0.05 levels (selected by the user)
·Rated secondary load: 0.2VA

[Precision Transformer]HJS-10 Type Self Boosting Precision Voltage Transformer

2026-6-15 20:37:31

The HJS standard voltage transformer is made of high nickel Permalloy magnetic material and uniformly wound with high-strength ester coated wire, with a reasonable and reliable structure. Mainly used for verifying lower level voltage transformers. This device has high accuracy, small size, light weight, and is easy to use.

Main technical indicators:
·Accuracy level: 0.01, 0.02, 0.05 (selected by the user)
·Rated primary voltage: 3KV, 6KV, 10KV or other special requirements for rated primary voltage
·Rated secondary voltage: 100V, 100/3V, 100/3V
·Rated secondary load: 0.2VA

[Precision Transformer]HLB type precision current transformer

2026-6-15 20:37:22

The HLB type precision current transformer is made of high-quality iron core rolled surface and undergoes strict heat treatment, effectively improving the accuracy and width of the transformer. The transformer has a small volume, beautiful appearance, high accuracy, and simple wiring. Used to calibrate lower level current transformers. In addition, it can also be used as an expansion limit device, which can be used in conjunction with corresponding precision instruments to accurately measure power and electrical energy. Due to its small size, light weight, and easy portability, this model of equipment is more suitable for on-site testing and use.

Main technical specifications of HLB type precision current transformer
·Accuracy level: 0.01 (S) level, 0.02 (S) level, 0.05 (S) level optional
·Rated primary current: 0.1A-100A, 5A-600A, 5A-2000A, 5A-3150A
5A-5000A
·Rated secondary current: 5A, 1A
·Dimensions (mm): Depending on the specific model
·Weight: 15kg-20kg (depending on specific model)

[Precision Transformer]HLS type (with current transformer) precision current transformer

2026-6-15 20:37:13

The HLS type (with current transformer) precision current transformer is made of high-quality iron core rolled and undergoes strict heat treatment, effectively improving the accuracy of the transformer. The transformer has a small volume, beautiful appearance, high accuracy, and simple wiring. Used to calibrate lower level current transformers. In addition, it can also be used as an expansion limit device, which can be used in conjunction with corresponding precision instruments to accurately measure power and electrical energy.

Main technical specifications of HLS type (with current transformer) precision current transformer:
·Accuracy level: 0.01 (S) level, 0.02 (S) level, 0.05 (S) level optional
·Rated primary current: 5A-2000A, 5A-3150A, 5A-5000A optional
·Rated secondary current: 5A, 1A
·Dimensions (mm): Depending on the specific model
·Weight: 35kg-40kg (depending on specific model)

Precision current transformer

[Precision Transformer]HL24 series precision current transformer

2026-6-15 20:37:04

HL24 series precision current transformer

The HL24 instrument current transformer is suitable for laboratory measurements in AC single-phase circuits with a rated frequency of 50Hz and a rated voltage of 0.5kV, and is used as a standard instrument for verifying current transformers and instrument devices.

[Precision Transformer]HL24-1,HL24-2(A) series 0.5KV precision current transformers

2026-6-15 20:36:51

HL24-1 (A) HL24-2 (A) series 0.5KV precision current transformer

[Precision Transformer]HL23-1,3,5 series 0.5KV precision current transformer

2026-6-15 20:36:42

HL23-1 3 5 series 0.5KV precision current transformer

[Precision Transformer]HL3��HL3A series 0.5KV precision current transformers

2026-6-15 20:36:33

HL3 HL3A series 0.5KV precision current transformer

[Precision Transformer]HL1/HL1A series 0.5KV precision current transformer

2026-6-15 20:36:24

Level: 0.2
Primary current (A): 15-50-100-150-200-300-600
Secondary current (A): 5
Rated load: 5VA
Power factor: 0.8

HL1/1A series 0.5KV precision current transformer

[Precision Transformer]SCT series ultra small precision current transformer

2026-6-15 20:36:15

Technical parameters of SCT series ultra small precision current transformer

1. Secondary current: 2.5mA (10mA)~30mA (120mA) optional
2. Accuracy: 0.1 level, linearity:<0.1%
3. Load: 5-40 COS��=1.0
4. Primary to secondary power frequency withstand voltage:>2.5KV
5. Insulation: �� 100Mohm (500VDC)

Appearance and installation dimensions

SCT series ultra small precision current transformer