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Hammad Group

Supplier From Pakistan
Jul-04-20
Supplier : Transformers, Current Transformer, CT, VT, PT

Established: 2004 Standards: ISO 17025, 9001, 14001, 18001

Verification Status



Contact Details:
-162 Muzammil Town, Opp Wapda Grid, 19-Km, Multan Road
-Lahore 53400
Punjab Pakistan


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Transformers,Distribution and Power Transformer,Varivolt
Safety Transformers
Diesel Generators
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We can provide all type of current transformer and voltage transformer for outdoor type and indoor type, zero sequence ct.
Aug-09-19
 
Rated frequency
50Hz or 60Hz
Rated secondary current
5A or 1A
Rated short-time thermal current
40kA,1s
Rated insulation level
12/42/75 kV
Ambient temperature
25~40
Altitude
Up to 1000m above sea level

Indoor device
Standards
The product performance is in accordance with GB20840.1 GB20840.2 and IEC61869-1 IEC61869-2 standards.
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Product description

Transformer Standard current transformer are also called precision current transformers, current transformer standards, standard CT and current transformer standards. Transformer standards are divided into current transformer standards and voltage transformer standards. Standard current transformers are used in the error test of transformers. Used as a current transformer calibration standard



technical parameter

1. Temperature:

2. Relative humidity

3. Rated Primary Current:5-5000A 5A,1A

4.Rated secondary current:5 1A

5 Accuracy Class 0.05S

6. Allow long-term work under the rated current; More than120A across the core.



Precautions:

1. The current of standard CT and tested CT must be the same in CT calibration.

2. Follow the given wiring diagram strictly.

3. Test whether the load box is accurate or not before calibrating the transformer.

4. Forbid secondary winding opening during the calibration.

5. Select demagnetization before calibration.The wiring diagram is shown in figure 5.

Short out the secondary winding before cutting off the power when the demagnetization is finished.

6.Principle wiring diagram of CT with large current generator is similar to above diagram. They are the same except the output winding of large current generator and primary winding of transformer are the same one.
Dec-03-21

Current Transformer

$770 - $15.40K
MOQ: Not Specified
 
Product description

Transformer Standard current transformer are also called precision current transformers, current transformer standards, standard CT and current transformer standards. Transformer standards are divided into current transformer standards and voltage transformer standards. Standard current transformers are used in the error test of transformers. Used as a current transformer calibration standard



technical parameter

Temperature -5 40

Relative humidity 80%

Rated Primary Current 5-5000A 5A,1A

Rated secondary current 5A 1A

Accuracy Class 0.05S
Allow long-term work under the rated current; More than120A across the core.



Precautions

The current of standard CT and tested CT must be the same in CT calibration.

Follow the given wiring diagram strictly.

Test whether the load box is accurate or not before calibrating the transformer.

Forbid secondary winding opening during the calibration.

Select demagnetization before calibration.The wiring diagram is shown in figure 5.

Short out the secondary winding before cutting off the power when the demagnetization is finished.

Principle wiring diagram of CT with large current generator is similar to above diagram. They are the same except the output winding of large current generator and primary winding of transformer are the same one.
Oct-25-20
 
FEATURES
Most cost-effective
Faster installation
Safe and easy installations
High accuracy 0.5
Holding wire diameter: 32mm
Ratio ranging from 60/1A to 600/5A
CE, UL

PARAMETERS
Technical parameters
Standards IEC/EN60044-1 & IEC61010-1 & IEC61869-2&ANSI C57.13
Ratio 400: 5 or 200:5 , customized
Nominal input current Primary current 100A/150A/200A/300A/400A/500A/600A
Overload withstand 1.2 times rated current continuously
Accuracy 0.2%, 0.5 %, 1%/60Hz
System Voltage 720V(0.72kV)
Output signal 1A or 5A
333mV AC or 100mV-2V optional
Burden 2.5VA
Frequency range 40 Hz-500 Hz
Dielectric strength 3KV 50Hz/60Hz at 1 minute
Output Standard 2.5 meter cable
Max. jaw opening 32 mm
Mechanical parameters
Dimensions (DH) (mm) 110mm130mm 41mm
Weight(g) 700
Operating conditions
Operating temperature -25 C to +55 C
Relative Humidity 0-85% non-condensing
Altitude
Sep-10-13
 
Current transformer.
Jun-02-14
Supplier From Ghaziabad, Uttar Pradesh, India
 
We are one of the leading manufacturer of all types cts of any ratio. We manufacture both outdoor and indoor types. We manufacture both resin cast & oil cooled cts

As per mutual discussion
Apr-08-13
 
We have emerged as the foremost trader and supplier of a comprehensive assortment of potential transformers. These transformers are extensively used for billing industrial clients or utility companies. Our high grade transformers are procured from the trusted vendors of the industry as per the set global norms. Manufactured using optimum quality raw material and latest technology at vendors’ end, the offered range is highly durable in nature. Optimum performance, durability and corrosion resistance are some of the salient features of our offered transformers that are highly valued by clients.

Specifications:
Potential transformers up to 400kv class

As per mutual discussion

Verification Status