LT Tape Wound Transformers, Resin Cast Current Transformers, Potential Transformers, Furnace Transformers, Control Transformers, Resin Cast Potential Transformers, Thane, India

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TFE'S C.T.-P.T. METERING SETS


We manufacture Distribution Transformers Upto 400 KVA ( 11 / 22 / 33 KV )

Our Range Of Products :-

* L. T. Tape wound & resin cast current & potential transformers
* Resin cast current & potential transformers upto 33 KV
* Resin cast, Indoor, type C.T. P.T. Metering sets upto 33 KV
* Oil cooled, outdoor, type current & potential transformers upto 66 KV
* Oil cooled, outdoor, Residual voltage transformers upto 33 KV
* L. T. control, Furnace & lighting transformers upto 100 KVA
* A.C. High voltage testing transformers upto150 KV
* D. C. high voltage testing sets upto 60 KV
* Oil testing sets (60 KV)
* Primary injection sets
* Secondary injection sets
* Relay testing kits with digital timer
* Heat run test sets
* Milli volt drop test sets
*  Distribution Transformers upto 400 KVA (11/22/33 KV)

* Construction :

 Oil cooled, Out door type C.T.P.T. Metering sets are made for use on 11 KV to 33 KV systems & are suitable for mounting on structures. Basically a set consists of
1) C.R.G.O. cores
2) H.V. & L.V. windings 
3) M.S. tank with secondary terminal box.
4) Bushings.
5) Transformer oil.
Overall general arrangement of parts in shown on front page. One C.T.-P.T. set has two C.T.S in phases 'A' & 'C' & one three phase P.T.

* Special features :

 1) A pressure release device is provided on the top cover of the tank which operates in case of abnormal 
    internal pressure development due to abnormal operating conditions.
2) The set is much more compact compared to the C.T.-P.T. sets of other makes.
General technical Particulars :-    
    Current Transformer (2 Nos.) Potential Transformer 
(1 No.)
 

System voltage
Insulation level
Frequency
Ratio.

Accuracy
burden
IS

11, 22 or 33 KV
28 50 or 70 KV
50 Hz
Double or triple current / 5A

0.5 or 1.0
15 or 30 VA
2705

11 , 22 or 33 KV
28, 50 or 70 KV
50 Hz
11 kv/ 110 V, 22 kv / 110 V or 33 kv / 110 V

0.5 or 1.0
50 or 100 VA
3156
* Applications :
The C.T.-P.T. metering sets of this type as the name suggests are used for measurement of power on high voltage side.  The C.T.-P.T. sets are installed before the main transformer and the main line goes through C.T.-P.T. set to the main transformer.  Metering equipment is connected to the secondary side of the C.T.-P.T. set. As the accuracy of the C.T.-P.T. set is high & as it is connected before the transformer, measurement of power is much more accurate compared to the metering done on L.T. side, the transformer losses are also included in the measurement.

* Connection diagram :

 Connections are done as per the terminal marketing on the connection diagram shown below.
 

LT Tape Wound Transformers, Resin Cast Current Transformers, Potential Transformers, Furnace Transformers, Control Transformers, Resin Cast Potential Transformers, Thane, India

 

 

* Dimensions :

Overall maximum dimensions (approx.) of different C.T.-P.T. sets are as below

 

11 KV

22 KV

33 KV
Length (L)
Width (W)
Height (H)
Mounting (ML)
Mounting (MW)
Mounting Hole

700 mm
450 mm
675 mm
450 mm
350 mm
016 mm Ø

900 mm
500 mm
900 mm
550 mm
400 mm
016 mm Ø

1100 mm
0600 mm
1050 mm
0750 mm
0450 mm
0016 mm Ø


Note : We also manufacture, Resin cast, Indoor type C.T.P.T. metering sets upto 22 KV.

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