customized high-precision current transformer

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Selling leads
customized high-precision current transformer
Posting date : May 09, 2016
Membership
Free Member Scince Mar 12, 2016
FOB Price
negotiable
Min. Order Quantity
10
Supply Abillity
100000
Port
Shanghai; Ningbo
Payment Terms
negotiable
Package
can be customized
Keyword :
customized high-prec
Category
MACHINERY & ELECTRICAL | Electrical machi | Electrical machi | Machines & appar
Contact
Zhong
Selling Leads Detail
Company Info
 
Quick Detail
Place of Origin
China [CN]
Brand Name
EHC
Model Number
CTS
HS-CODE
8543-30
Package & Delivery Lead Time
Package
can be customized
Specifications
Type of Certification
ISO9001
Reference no.
00213Q13525ROS
Name.
ISO9001
Issued By
CQM
Start Date (validity period)
2013-06-21
End Date (validity period)
0000-00-00
Image

Detailed Description
CTS series are high-precision current transformers, they are manufactured strictly under the instruction of "a current transformer" patent technology of patent number CN102709042B .their measurement accuracy can be：0.02S，0.01S，0.005，and are mainly used for the AC measurement of instruments and meters;
amplitude error（ratio error）±（％）
 
amplitude error（ratio error）±（％）
accuracy class
Imax
0.5
Imax
2In
In
0.5In
0.2In
0.1In
0.05 In
0.02 In
0.01In
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.04
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.02
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.01
phase error（angle error）（′）
 
phase error（angle error）（′）
accuracy class
Imax
0.5Imax
2In
In
0.5In
0.2In
0.1In
0.05In
0.02In
0.01In
0.02
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
1.2
0.01
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.6
0.005
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.3
Instructions：CTS series current transformer are the current transformer of voltage output，red wire is the anode of current transformer output voltage, which is connected to the anode of current signal input of metering chip (+In)，white wire is the cathode of current transformer output voltage, which is connected to the cathode of current signal input of metering chip (-In). Putting bias resistors R0 between the cathode (-In) of current signal input of the metering chip and the ground wire, the value range of bias resistors can be between 0Ω~10kΩ. Resistance value of bias resistors advised to choose 10Ω; connecting current sampling resistance R1、R2 to the interior of current transformer，current sampling resistance R1 and crrent sampling resistance R2 are substitutional resistor of 10 Ω .
Model
Rated Pr.Curren In（A）
Max.Curren  Imax（A）
Rated Output Voltage of secondary side（mV）
accuracy class （class）
CTS1.5(10)A/50mV0.01S
1.5
10
50
0.01
CTS1.5(10)A/50mV0.005S
1.5
10
50
0.005
CTS1.5(10)A/50mV0.002S
1.5
10
50
0.002
CTS0.3(1.2)A/10mV0.01S
0.3
1.2
10
0.01
CTS0.3(1.2)A/10mV0.005S
0.3
1.2
10
0.005
CTS0.3(1.2)A/10mV0.002S
0.3
1.2
10
0.002
CTS0.3(6)A/10mV0.01S
0.3
6
10
0.01
CTS0.3(6)A/10mV0.005S
0.3
6
10
0.005
CTS0.3(6)A/10mV0.002S
0.3
6
10
0.002
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Reference circuit parameters configuration:
example: energy metering module
design specification：three-phase four-wire system，voltage specification is:3 X 220V/380V, current specification is:3 X 1.5(6)A。
Metering chip：ATT7022EU
Current sampling：Current transformer is CTSU1.5(6)A/50mV0.01S，Bias resistors R0 is 10Ω，when under rated current transformer, the signal voltage of the current circuit is 0.05V
Voltage sampling：Using resistance to share partial pressure, the signal voltage of the voltage loop is 0.2V.
Metering chip ATT7022E parameter configuration: the gain configuration of the current channel is 1, the gain configuration of the voltage channel is 1。
Measurement error precision test:
Test data of active measurement error：In=1.5A，
Precision grade of calibration machine: 0.03
The environmental temperature：23℃
electric current
Active measurement error
 
1.0L
0.5L
4 In
0.0111
-0.0044
2 In
0.0066
0.0133
In
-0.0066
0.0111
0.5 In
0.0053
0.0284
0.2 In
0.0097
0.0293
0.1 In
0.0071
0.0259
0.05 In
0.0094
0.0394
0.01 In
-0.0140
0.0001
4.Electrical properties
4.1  Dielectric strength：power frequency voltage between the primary winding and the secondary winding is 4KV/min，no breakdown、flashover phenomenon，leakage current＜1mA；
4.2  Insulation resistance：between  the  primary  winding  and  the  secondary  winding≥ 1000MΩ/500Vdc；
4.3  The temperature rise limit：According to the temperature influence regulations of GB/T17215, when the environment temperature is 40 ℃, under the Imax current, the temperature rise of the electric transformer shell surface must be less than 25 k。
4.4  Overload capacity test：Under the rated load, after 30 Imax current impacts the current transformer for half a period, the current transformer is still in good condition, when back to the rated current, the error of the current transformer is no more than 1.3 times of the regulated value. After demagnetization, the current transformer still satisfies the requirement of level of accuracy.   
5.  The working environment
The limiting ambient temperature：—40℃~+85℃；Relative humidity：≤98（25℃）；
The altitude：≤3000m
ECROBOT CO., Ltd, Business Registration Number : 220-88-71747, CEO J.W.Park, TEL : +82-2-552-7676, E-mail : E-mail : Contact us
Address : (Hwanghwa B/D 11F, Yeoksam-dong)320, Gangnam-daero, Gangnam-gu, Seoul, South Korea
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