C.T.TESTING UNIT

Products > Test Bench > C.T.Testing Unit

C.T.testing unit

 Features :

  • Microprocessor controlled
  • Self zero check and calibration check
  • Digital display of %input, ratio error and phase error
  • Manual and auto ranging modes
  • Test 5A and 1A CT with either 1A or 5A reference CT
  • RS 232C port and parallel port for printing
  • Built in real time clock
  • Parameter entry through keyboard

Electrical Specifications :

Type : Single Phase
Operating Current : I A / 5A, 0.5Va
Auxiliary Supply : 110V/240V,Ac ±20%, 50/60Hz, 60Va.
Accuracy : ± 0.5% Of Reading ±1 % Of Range
Frequency : 45Hz To 55Hz Or 55Hz To 65Hz.
Error Ranges : 20% (±19.99% Ratio Error And (±19.99Cr* Or 680Mins.Phase Error))
2% (±1.999% And (±1.999Cr Or 68.0 Mins.))
0.2% (±1999Ppm And (±1999ΜR Or 6.80 Mins.))
(Cr = Centiradians, ΜR = Microradians, Ppm = Parts Per Million).
Resolution : 0.05% Of Range
Measuring Time : 7 Seconds Irrespective Of Signal Level And Error Range.
Outputs : Rs232C Port & Parallel Port (Data In Ascii Format).
Insulation Resistance : Greater Than 20 Mohms At 500V. Dc.
Dielectric Strength : 2Kv Rms For 1 Minute
Operating Temp : 0°C To 55°C
Storage Temp : -20°C To 70°C
Humidity : Upto 95% Rh.

Mechanical Specifications :

Model : CTU
Size : 180X320X450mm
Weight (Appro.) : 8.0Kgs

Keyboard Controls :

0 - 9 : Numeric keys to enter values.
• : Decimal point.
ENT : Enter key
RTC : Enter date and time.
SR / VA : Enter serial no. and burden.
PRINT : Take printout of error readings.
SER : Send data to serial port.
% / ACT : Display input in percentage or actual value.
DEG/RAD : Display phase error in minutes or centiradians.
ZERO : Check auto zero.
CAL : Test self calibration.

Display and Indications :

  • 4 digit LED display each to display input, ratio error and phase error.
  • LED indications for following quantities :
  • % Input
  • Minutes and centiradians.
  • Range for 20%, 2%, 0,2% and Auto
  • Balance, overrange, zero and calibration.

Printing :

Date, time, serial no., input (% or actual value), burden, %ratio error, & phase error (minutes or centiradians).

Ordering Information :

1) Type 2) Model 3) Operating current 4)Operating Frequency 5)Auxiliary supply