5000/5A Class 1.0 Split Core Current Transformer
5000/5A Class 1.0 Split Core Current Transformer

5000/5A Class 1.0 Split Core Current Transformer

USD $47.73 - $91.57 /Piece

Min.Order:10 Pieces

Supply Ability:
100000 Piece / Pieces per Month
Port:
Ningbo or Shanghai
Payment Terms:
T/T L/C D/P D/A Credit Card PayPal

Quick Details View All >

Place of Origin:
Zhejiang, China
Brand Name:
YOMIN
Model Number:
DP-816-5000/5A
Usage:
Current
Phase:
Single
Coil Structure:
Toroidal

Yueqing Yomin Electric Co., Ltd.

Business Type: Manufacturer,Trading Company
Wenzhou Zhejiang China
Main Products: High and low voltage electrical appliance ,Energy meter ,Switching power supply ,Cam Switch ,Fuse

Product Details

5000/5A Class 1.0 Split Core Current Transformer 

Model: DP-816-5000/5A

 

5000/5A Class 1.0 Split Core Current Transformer 

 

Product Overview

 

Current Transformer (CT) is used to transform the high AC current to small easily manageable values. They're connected with the Panel Meter or Relay and they can help to measure the current or protect the equipments. Low voltage current transformers are manufactured as of two types for measuring CT.

 

 

  • Measuring CT: Measuring current transformers are constructed to feed on other low voltage apparatus such as measuring instruments, relays, watt-hour meter (KW meter) and these type of current transformers are mainly used 0.5 and 1.0 class to transfer the current from highest rated current to rated secondary current.

 

 

 

  • Protection CT: Protection current transformers are constructed to feed the protection relay. These type of current transformers are mainly used 5P. (Customer supplied when required.)

  5000/5A Class 1.0 Split Core Current Transformer

 

 

 

Feature

 

Split core current transformer has been specially designed to facilitate their installation in new or already existing net works. They may be installed without opening any cable or bus-bar circuit. The connection of conventional CTs usually requires the interruption of the primary side circuit to pass cables or bur-bars through the transformer core or to connect such cables to the primary terminals. The DBP series transformers core may be easily opened and they may be installed and connected without any supply interruption. Thus saving time and the installation costs.

  • Two built in fixing methods:Base; Busbar mounting, very easy to mount the split core Current Transformer
  • Split core design. Reliable and Safety, high accuracy.
  • Wide inner window, allowing clamping of big cables or busbars.Wide range of sizes to accommodate all the existing installations.
  • Primary current from 5A to 5000A.
  • Accuracy class up to 0.5.
  • Provide lead seal hole to seal the secondary terminal cover to prevent electricity stealing.

 

 

 

Selection of the Current Transformer

 

To select the current transformer correctly, the following points should be clarified:

 

 

 

 

Power Losses of the CT

 

In the practical application, the power generated by the primary current should be equal or bigger than the power requirement of the associated measuring device plus the consumption of the connecting line.

 

Losses in the line, PL:

This is the power loss, through heat, generated by current through the resistance RL in the cable, in the transformer’s secondary circuit.

 

Factors to be taken into account:

Secondary current: PL = RL / 2

 

Cable diameter: RL is inversely proportional to the square of the diameter cable length: RL is proportional to the length of cabling (there and back).

 

Power: The nominal apparent power (VA) with a specified power factor, which was supplied by the Current Transformer, to the secondary current with the assigned current when it is connected to its nominal load. Sc (VA) = Zc (/sn)2 According to Standards, for apparent power greater than or equal to 5VA, the power factor is 0.8 inductive. For apparent power less than 5VA the power factor is considered to be one (unity).

 

5000/5A Class 1.0 Split Core Current Transformer

 

 

 

 

 

 

Accuracy of A Current Transformer

 

The percentage of error, produced in a transformer, is established by IEC60044-1. In measurement transformer: 25% and 100% of nominal power. In protection transformers: 100% of nominal power.

 

Note: with…/1A transformers losses are reduced 25 times.

  5000/5A Class 1.0 Split Core Current Transformer

5000/5A Class 1.0 Split Core Current Transformer

 

 

 

 

Saturated Condition of CT

 

The current transformer is saturated if the primary current, passing through the CT, is greater than the nominal rating of the CT.

 

The linearity of CT, between the primary and secondary sides decreases, so error increases. The saturation of the CT is inversely proportional to the load (FIG. 1).

 

The difference between measuring and protection current transformers is their behavior when an overload occurs on the primary side. Measuring CT is saturated when there is a primary current overload. In order to protect the equipment. On the secondary side, protection CT will not saturated until there is a very high current on the primary side, A class 5P15 protection transformer indicates that it has an accuracy rating of ±1% that it does not become saturated until the primary current reaches 15 times the nominal current rating of the CT.

In measuring transformers, the SAFETY FACTOR “FS” parameter indicates the excessive amperage on the primary side current in relation to the current sent to the measuring device on the secondary side.

5000/5A Class 1.0 Split Core Current Transformer

5000/5A Class 1.0 Split Core Current Transformer

 

 

 

 

Application Note

 

If the primary current is too small, to keep the same accuracy and output, we can add primary winding, but the rated turns ration should be the same, For example, if the primary current is 50A, we can use 100/5A current transformer with the primary current be turned twice which help to keep the same rated turns ratio (1:50 = 2:100).

5000/5A Class 1.0 Split Core Current Transformer

 

 

Construction

 

 

 

CT consist of primary winding, secondary winding, magnetic core and insulated body. The high-grade silicon steel core is annealed, varnished then insulated with polycarbonate core caps. The secondary winding is toroidally wound by high precision semi-automatic machinery. For the tape wound ring type current transformer, the PEW coated windings are then covered with elephantite paper, varnished and double-tapped with PVS tapes. For the encapsulated type current transformer, the windings are enclosed in a compact and heat resistant split cap.

 

 

 

Specifications

 

 

 

 

 

Selection Form
 

 

ItemCurrent RatioRated Burden (VA)Case Qty.
Model(A)Class: 0.5Class: 1.0(Pcs)
DP-8161000/55105
1500/57.5105
2000/510105
2500/515205
3000/520255
4000/520255
5000/520255

 

 

Note:

 

Class and VA rating must be mentioned when ordering.

 

 

Dimension

 5000/5A Class 1.0 Split Core Current Transformer

ModelABCDEFGHI
DP-232030518911134474032
DP-5850807811414532323233
DP-88808010814414532323233
DP-8128012010814418532323233
DP-8168012012018424552475238

 

 

 

Company Information

5000/5A Class 1.0 Split Core Current Transformer5000/5A Class 1.0 Split Core Current Transformer5000/5A Class 1.0 Split Core Current Transformer5000/5A Class 1.0 Split Core Current Transformer5000/5A Class 1.0 Split Core Current Transformer 

 

 

 
 
 
 
 

Contact Supplier

Ms. Linda General Manager Chat Now
Telephone
0086-577-61616259
Mobile
0086-13968745210
Fax
0086-577-61616256
Address
Qiaoqian Industrial Area, Liushi Town, Yueqing City Zhejiang

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