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.
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
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
Condition New
Frequency 0-50Hz, 100-200Hz, 200-400Hz
Tensile Strength 125-150Mpa, 175-200Mpa, 75-100Mpa
Features Easy To Install, Four Times Stronger, Superior Finish
Warrenty 5yrs
Automation Grade Automatic
Production Power 100-250kw, 250-500kw, 50-100kw, 500-750kw
Characteristic
1.oil immersed test transformer has excellent material selection, reliable quality and good stability
2.the voltage margin, corona sound small, small board
3.the use of new insulation materials, small size, light weight test
Packaging Details:
1.Wrapped with plastic film.
2.Fixed in a wooden case.
3.Wooden case on a pallet.
Rated Input Current:5A
Rated Output Current:2.5mA
Turns ratio:2000:1
Phase Angle Error:less than 20'(1A,100)
Linear Range:0~20A(100)
Mounting(mm):D5.0
* Small size
* High accuracy
* Good consistency
* Used for current and power measurement
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.
current tranformer LJB1
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#DF-current tranformer LJB1-DF
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Electrode 2401B
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magnetic pickup sensor price 70085-1010-428
level transmitter 3051DP2A22A1AB4HR5
Reducer(with motor) SR-101V
LIMIT SWITCH YBLXW-5/11G2
Differential pressure transducer RC861CJ097JYM
Eddy Current Sensor PR6425/010-111
non contact displacement sensor DET-35A
Sensor DF312580-90-01-02
Sensor and cable CWY-DO-815004
Steam Turbine Pressure Switch 396723-SA6B2530-0INHG
SPEED SENSOR A5S11N3/200-5T
Transducers FPD-2 (0-75mV/4-20mA, AC127V)
Eddy Current Sensor PR6422/001-111
lube oil pressure switch PS531SPP10/BB32N3
Close switch E2E-X10ME1
transmitter LJB1-1000A/10V
Low filling level gauge EFA16B1H2
LVDT transmitter XCBSQ-02/150-01-12
Vibration speed sensor HD-ST-3
LVDT vavle IV 2000TDZ-A
Keypad Board SY-PANEL1-WHEEL (V1.2)
contactless position sensor DET200A
AD Change Card AC6682
Weighing Transducer STC-250
Limit Switch WLGCA2-2
proximity transmitter TM0180-A07-B00-C05-D50
Extension cable WT0181-A80-B00
lvdt precision DET-1000B
Ignition XDH-20C
LVDT snesor CCH02A.319Z-1
high temperature differential pressure transmitter 3051CD1A2B21AM5B4Q4
low rpm tachometer HY-TACH
temperature thermometer WTYY-1021
Contact block 3SB1400-0A
inductive displacement sensor DET-25A
DC SIGNAL CONVERTER M5VF-AA-R
variable displacement transducer TDZ-1E-012 0-275
SYNCHRONISER SID-2CM/50-N-E-N-W
Bolt electric heating rod ZJ-18-430
magnetic displacement sensor ZDET50A
lubrication oil tank oil level indicator CCH02A.427Z-2
Stainless pressure vacuum gage ZJTFXC-150
lvdt encoder B151.36.09.04.15
LVDT Sensor K156.36.06.007
TRANSMITTER AX410/500011/STD
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LVDT transmitter XCBSQ-01/250-01-01
Rectifier bridge cooling fan GDRM42
current tranformer LJB1
1. DC immune CT with good DC error ;
2. High precision: 0.2, 0.1,0.05 Class,
3. Good linearity;
4. Max Current:6A,10A,30A,40A,60A,80A,100A,120A,160A,200A ;
5. Ratio :1000:1; 2000:1 or 2500:1 ;
7. Pin connection/ PCB mounting ;
8. It applied in Electricity meters .
DC immune Current transformer for Electricity meter
-Adopted high permeability core, high accuracy , good linearity;
-Anti-combustion plastic case ;
-Encapsulated with epoxy resin with strong insulation ability;
-DC immune function with good DC error , conform to IEC 62053-21;
- Customised shield to against the external magnetic field .
KF series
split-core current transformers.
The CT can be mounted to existing panels, such
as control centers or load centers, to measure or monitor voltage. These CTs
can be mounted without removing existing cables for easily installation.
main parameter of 69kv CT
Rated current ratio: 2000/1600/1500/1200/1100/800/500/400/300 : 5 A
Rated output capacity of each corresponding ratio: 200/160/150/120/110/80/45/35/25 VA
Winding accuracy class: 0.2/5P20/5P20/5P20
CNMEs business activities cover national and international engineering, Generation Stations, Electrical Engineering Equipment, all kinds of electrical equipment, Test And Design and so on. The activities consist of the industries of high voltage power transmission and distribution, diesel power generation, thermal power generation, Transformer Test Laboratory Design, Electrical Lab Design And Solution, Power Plant Design and so on.
These Current Transformers are manufactured in Wound Primary type and Window type construction. It is manufactured using Automatic Pressure Gelation casting and Vacuum Casting Technique. It ranges from 3.3 kV to 33 kV.
Resin cast current transformers are available for metering and protection application. These current transformers are mainly fabricated according to client’s specification. Ct coils are encapsulated in cast resin (polyester / epoxy). Secondary terminals are provided with either screws or studs. The main insulation between primary and secondary and earth is obtained by this epoxy resin. These transformers are of compact design with high mechanical and electrical properties. These are non-hygroscopic and hence give very good insulation properties even in given humid conditions.
General particulars
Rated voltage: 11 kv
Rated primary current: 100 a
Rated secondary current: 1a or 5a
Rate burden: 5va
Rated frequency: 50hz
Accuracy class: 0.5 or 0.5s
Temperature: as per is-2705/1992
Highest system voltage: 12kv
Insulation level: 28kvrms/75kv(p)
Stc: 13.1ka for 1 sec
Continues thermal current: 1.2 times of rated current
Core material: crgo
Copper wire material: enameled wire as per is-4800 part-4 or iec-317
Insulation class/material: epoxy resin
Secondary terminal: m5 brass bolt with nut &washer or m5 threaded bush with screw &washer
Primary terminal p1 & p2 size and material
Mounting base: ms 5mm thick zinc plated
Rountine test :as per is-2705/1992
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