Residual Current Transformer

Residual Current Transformer Open- Closed Zero Sequence Leakage Fire Monitoring

Residual Current Transformer Open/Closed Type Zero Sequence Leakage CT for Fire Monitoring, Epoxy Resin Casting, 5A–630A Input, Panel or Cable Mount.

Basic Info

Model NO.1
PhaseSingle
Operation ConditionOutdoor
UsageProtection, Measurement
Winding FormMultilayer Honeycomb Type
Insulating MediumInsulating Gas
InstallationActive Type
Magnetic Circuit StructureCombined Type
Voltage Transformation PrinciplePhotoelectric Type
Primary Current100A – 5000A
Secondary Current5A.1A
Size Specification SizeK-30×20
Protection ClassIP20
Nominal Discharge Current(8/20us)in20ka
仕様Standard
Transport PackageStandard
TrademarkTengtai
OriginChina

Packaging & Delivery

Package Size20.00cm * 50.00cm * 60.00cm
Package Gross Weight5.000kg

製品紹介

CTKD split-type transformer is an improvement on the traditional transformer. It is made into a free split-type, which can be quickly installed and disassembled without power outage or disconnection, and is easy to operate. This series of products has a wide measurement range, with a rated primary current range of 5 to 630A, a rated secondary current range of 0 to 1A, and a current transformation ratio range of 500:1 to 10000:1. The orderly manufacturing process ensures its accuracy level, reliability and other technical requirements.

製品の特徴

  • structure, good consistency, high magnetic conductivity silicon steel, good linearity, high sensitivity.
  • Internal epoxy resin casting, good stability, light weight, easy installation.

申し込み

Applicable to power measurement, power quality analysis and electrical equipment signal collection ƒ Applicable to power demand side management of lighting equipment, motors, power devices and other equipment..

Circuit connection diagram

Performance indicators and Electrical parameters

Operating frequency50-2KHz
Rated input5A-630A
Measuring range10%In-130%In
Rated output0.333V(AC) or 0-500mA
Ratio Difference≤± 1.0%
Phase Difference≤ ±60
Dielectric strength2.5KV/1mA/1min
Insulation resistanceDC500V/100M min

Mechanical parameters

ShellPA,Flame retardant grade 94-V0
skeletonPBT
Iron CoreSilicon Steel
Internal structureBuckle
constructionCable tie fixing
動作温度-25ºC~+75ºC
Ambient humidity≤85%
Output ConnectionsUL1015 22AWG PVC; Black and white twisted pair 2.5m

Specification selection (outputmA/V)

SpecificationsRated input(A)Rated output(mA/V)Accuracy Levelsize (mm)
ØABC
CTKD105-75A

(5,10,20,50,75)

5-75A0.5,1.0,3.010.04325.826.5
CTKD165-150A

(5,10,50,100,150)

0-100mA0.5,1.0,3.016563133
CTKD2410-250A

(10,50,100,200,250)

0-200mA0.5,1.0,3.024.57245.639
CTKD3610-630A

(20,100,250,400,600)

10-630A0.5,1.0,3.035.786.56043.5

Circuit connection diagram

Note:

Rated primary current:0-600Aac z

Rated secondary current: 1A/5A

Rated load: 1.5,2.5, 3.75, 5.0,7.5 VA

Accuracy level: 0.2, 0.5, 1.0, 3.0 Class z

Output Connections:UL1015 22AWG ;lead :2.5 m

ヒントWhen using a current transformer, it is strictly prohibited to open the secondary circuit, as this may result in the generation of high voltage.

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