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CT-PT Combined Metering Units



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Product Description

CT-PT Combined Metering Units

''Macroplast'' follows two designs for manufacture of the CT-PT Combined Metering Units:-

  • the unit with HT insulators on the side of the unit
  • the unit with HT insulators on the top cover of the unit

Construction Features :

  • Primary Terminal (20mm ø)
  • Bushing (C.D. - 900mm)
  • Name Plate
  • Main Tank
  • Earthing Terminal
  • Mounting Holes
  • Oil Filling Socket
  • Lifting Lugs
  • Secondary Terminal Box
  • Oil Drain Plug
  • Base Channel (75mmx40mm)
  • Pressure Release Diaphragm
  • Oil Drain Plug

Technical Specifications of CT-PT Metering Units and Panels

3 Phase 4 wire with neutral solidity earthed system

Having : 3 Nos. CTs and 1 Nos. 3 Phase PT

3 Phase 3 wire with neutral solidity earthed system

Having : 3 Nos. CTs and 1 Nos. 3 Phase PT

General Particulars

Metering Unit/Panel

Nominal System Voltage (kv)

11


Highest System Voltage (kv)

12


H V Power freq. Withstand volt. For Primary Winding 1 Min (kv)

28


H V Power freq. Withstand volt. For Secondary Winding 1 Min (kv)

3


Impulse withstand voltage (kvp)

75


PD measuring voltage

7.6


Rated Frequency (Hz)

50 Hz

Current Transformer

Potential Transformer

Rated Burden : 2.5 to 30 VA

Rated Burden : 10 to 100 VA

Rated Primary Current (Amp): 2.5 Amp to 800 Amp

Rated Primary Voltage : 11 KV & 33 KV

Rated Secondary current (Amp) : 1 Amp to 5 Amp

Rated Secondary Voltage : 110 volt

Rated Short Time Thermal Current: 3 KA to 25 KA for 1/3 second

Rated Voltage factor : 1.2 cont. & 1.5 for 30 seconds

Accuracy class (IS/IEC standard) : 0.2S ; 0.2; 0.5s ; 0.5 ; 1.0

Accuracy class (IS/IEC standard) : 0.2, 0.5, 1.0

Rated Instrument Security factor : Less than 5



 

Applicable Standards for CT-PT Metering Units & Panels

The standards followed by Macroplast for design and manufacturing of CT-PT Metering Units & Cubicles are :

  • IEC : 60044-1, 2 & 3
  • ISS : 2705 & 3156
  • BSEN : 60044-1&2
  • ANSI : C.57.13

** Further, Macroplast also possesses the expertise to manufacture CT-PT Metering Units * Panels as per client specifications and requirements


Product Code : 04


MACROPLAST PVT. LTD.

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Contact Details
MACROPLAST PVT. LTD.
D-18/2, Surajpur Industrial Area, Site-B, Gautam Buddh Nagar, Greater Noida - 201306, Uttar Pradesh, India
Phone : +918268154239
Fax : 91-120-2560718
Mr. S. K. Mishra (Chairman & Managing Director)

Mobile : +918268154239
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