TEST-330B Three Phase Secondary current Injection Test Set

secondary current injection test set

The Test-330B three phase secondary current injection test set is the first choice for applications requiring very high accuracy more than 0.1%. This unit is not only an excellent test set for protection devices of all kinds but also a universal calibrator. It can as a ac or dc current source and voltage.

Its unique accuracy and reliability make the Test-330B ideal for protection and measurement equipment manufacturers for research and development, production and electric power company type testing.



  • Embedded host machine equipped with Complex Programmable Logic Device (CPLD)
  • Eight-path synchronous D/A output in a single machine
  • High-accuracy linear power amplifier
  • Host machine integrated single cabinet structure with big LCD screen and complete interface has obtained appearance patent
  • Intelligent self-protection function
  • Plentiful Binary and powerful software function
  • Easily complete the ABB, Siemens, AREVA, Schneider, GE, SEL, VAMP, Toshiba, NR, Sifang and other foreign manufacturers of protective device test
  • Synchronous output of five-phase voltage and three-phase current, Max AC current output is 90A, Max AC voltage output is 260V


  • 3 phase current output
  • 5 phase voltage output
  • 8 binary input, 4 binary output
  • Accuracy more than 0.1%

Test item

  • U/I test
  • DC test
  • Impedance characteristics
  • Power direction test
  • I-T test
  • Differential relay
  • Harmonic test
  • Differential protection
  • Distance protection
  • Zero sequence protection
  • Setting group test
  • State sequence
  • Synchronization test
  • Special test
  • Oscillation test
  • Metering instrument
  • Hardware checkout
  • Low Voltage protection
  • Fault Waveform Reproduction


Electrical parameters
Power voltage AC220V±10% or AC110V±10%, 50/60Hz±10%
Time measurement 0.1ms-999999.999s
AC current output 
Phase current output (effective value) 3 x 0-30A
Maximum power output 260VA/phase
Maximum parallel current output (effective value) 0-90A
Long-term allowable working value of phase current
(effective value)
Allowable working time of maximum current  >11s
Accuracy class  <±0.1%
AC voltage output 
Phase voltage output (effective value) 5 x 0-130V
Line voltage output (effective value) 0-260V
Maximum power output 70VA/phase
Accuracy class  <±0.1%
DC current output 
Output range -10 to 10A or 3 x 0 to ±10A
Maximum power output 200VA
Accuracy class  <±0.1%
DC voltage output 
Output range  0-300V or 5 x 0 to ±130V
Maximum output power 130VA
Accuracy class  <±0.1%
Binary input 
Idle contact 1-20mA, 24V (DC)
Electric potential contact 250V/0.5A (DC)
Binary output 
Idle contact  250V/0.5A (DC)
Rated output 
Frequency error <±0.01Hz
Phase error    <±0.1%
Waveform distortion <±0.3% (fundamental wave)
Time error  <40µs
Output frequency  0-1050Hz
Superposed harmonic wave  0-21times
Mechanical parameters 
Dimensions (L×W×H) (mm) 360x195x375
Weight (kg) 16.6
Environmental conditions
Use range 0°C to 45°C
Storage range -25°C to 70°C

Download Catalogue

Related Products