Melbourne GT Jones Products, Transformer - CT-620, High Voltage Wound, Primary Indoor Type, Cast Resin, Current Transformer 5-1200A.

Sedco Transformer Products - G.T. Jones


Combined voltage and current transformer units are a convenient and cost effective method of providing metering and/or protection to many electrical installations.

These systems can be manufactured in many combinations to suit all variations in voltage transformer and current transformer requirements.

 


This new advanced design is to replace the CT-116 and CT-117 designs as the CT-620 allows for both a horizontal or a 90° primary connection.

The base mounting centres are interchangeable with the previous designs although the primary connections are not.

The primary connections are by means of a single bolt up to 400A and two bolts are used above 400A.

Base mounting is by four tapped inserts moulded into the resin.

CT-620 High Voltage
Wound Primary Indoor Type
Cast Resin Current Transformer
5-1200A

Features:

  • These current transformers are manufactured to comply with the requirements of Australian Standard AS 1675.
  • Tapped Secondary Winding
    This feature is available to allow for increasing the current rating of system at a later date and gives a ratio of double the low ratio e.g. 100/50/5.
  • Double Secondaries
    Two separate secondary cores and windings can be accommodated in this design with reduced outputs as below. They may be two metering secondaries or two protection secondaries or one of each.
CLASS HIGH RATIO OR SINGLE RATIO VA LOW RATIO VA
0.5
1.0
2.0
PROTECTION
PROTECTION
10
15
25
10P30 (5A SEC)
10P150 (1A SEC)
5
7.5
10
10P30 (5A SEC)
10P150 (1A SEC)
  • Standard Single Secondary Performance
CLASS HIGH RATIO OR SINGLE RATIO VA LOW RATIO VA
0.5
1.0
2.0
PROTECTION
 
25
30
60
10P60 (5A SEC)
10P300 (1A SEC)
10
20
30
10P60 (5A SEC)
10P300 (1A SEC)
G.T.JONES (VIC) PTY LTD
38 Dairy Dve, Coburg Nth VIC 3058, Australia. Tel: +61 3 9350 3244  Fax: +61 3 9350 3266
E-mail: mail@gtj.com.au © Copyright 2006. All rights reserved.
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