Standard Current Transformer

Standard current transformer is used to be as a reference transformer for current transformer measurement. The one with or without current source is available.

Description

General

HL series standard current transformer is used to be as a reference transformer for current transformer measurement together with transformer tester and current source. Its steel core use high quality perm alloy, processed by special heat treatment and shielding protection, which features high accuracy, good error linearity. It is of compact design, nice appearance, and simple wire connection. HLS current transformer is the transformer with current source. It can be used as a current source only when secondary of CT in short circuit; it can be used as CT only when primary of current source in short circuit. Besides, it can also be used to expand range, together with corresponding precise meter to have accurate measurement on power and energy.

Technical Specification

  • Rated primary current range: 5~10000A (upon request)
  • Rated secondary current: 1A , 5A or 1A and 5A
  • Rated frequency: 50 Hz or 60 Hz
  • Accuracy: class 0.05; 0.02; 0.01

      Class 0.05s; 0.02s; 0.01s

  • Capacity: 5 VA
  • Power factor: cosφ= 1
  • Current working range: 5–120% rated current value
  • Rated working voltage:   500V
  • Capacity of current source: depend on current transformer

Note:  portable type with aluminum case or stainless steel with four castors are available.