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WAPDA DDS-84 & IEC 60076 · 11kV/415V 50Hz · Dyn11

1000 kVA Transformer in Pakistan (1 MVA) — Price, Specs & Turnkey Supply

The 1000 kVA (1 MVA) substation transformer is the definitive industrial power benchmark across Pakistan. Delivering a massive 1,391.2 Amperes of continuous low-voltage secondary current at 415V three-phase, this unit powers heavy textile spinning and composite mills (15,000+ spindles), pharmaceutical active ingredient synthesis plants, medium steel induction melting furnaces, large beverage packaging complexes, and 1 MW commercial solar plant grid synchronization across all industrial economic zones in Pakistan.

Rated LV Current 1,391.2 A
Rated HV Current 52.5 A
Full Load Efficiency 98.8%
Impedance (%Z) 5.0%
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1000 kVA (1 MVA Substation) Unit Blueprint TL-1000KVA-DDS84
1000 kVA 11kV 1,391.2 A LV
✓ Pure Copper Windings: 99.99% conductivity, tested to withstand 50°C summer heat.
✓ Low Loss Standards: 1,550 Watts iron loss, 9,500 Watts copper loss at 75°C.
✓ DISCO Approval Guarantee: LESCO, FESCO, GEPCO, IESCO, MEPCO, KE inspection compliant.
Immediate Feeder Dispatch Ready 18-Month Warranty
⚡ Compare Capacity Ratings:
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Commercial Transparency

1000 kVA Transformer Price in Pakistan (1 MVA Substation) — Key Cost Factors

Commercial pricing for a 1000 kVA (1 MVA Substation) transformer in Pakistan is dictated by raw engineering commodities and technical configurations rather than an arbitrary sticker price. Here is how your commercial proposal is structured:

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Winding Conductor Purity

Prime 99.99% Electrolytic Copper provides maximum conductivity, lower I²R losses, and longer service life (25-30 years). EC Grade Aluminium windings provide a lower initial cost option for budget-sensitive seasonal agricultural projects.

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Dielectric Oil vs. Dry-Type

Standard mineral oil-immersed (ONAN) with 1,420 Liters of Class-I inhibited oil is optimal for outdoor substations. Cast resin dry-type (AN/AF) is required for indoor commercial basements where fire regulations strictly prohibit oil.

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Tap Changer Mechanism

Standard units include a 5-position Off-Circuit Tap Changer (OCTC: ±2.5%, ±5%) for seasonal grid adjustment. On-Load Tap Changers (OLTC) with automatic voltage regulating relays are available for sensitive manufacturing loads.

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New vs. Certified Overhauled

TransfoLine manufactures brand-new units (with 18-month guarantee) and supplies thoroughly overhauled certified reconditioned units (with 12-month replacement warranty) providing 40% to 50% capital expenditure savings.

1000 kVA (1 MVA Substation) Commercial Summary

A 1000 kVA (1 MVA) transformer represents a major capital expenditure investment for industrial enterprises in Pakistan. Pricing is directly dictated by over 1,080 kg of 99.99% pure electrolytic copper, high-permeability laser-scribed CRGO core laminations, 1,420 liters of Class-I mineral oil, and accredited third-party high-voltage laboratory routine testing under WAPDA DDS-84 and IEC 60076. TransfoLine offers brand-new 1 MVA units (18-month warranty) and certified reconditioned 1 MVA units (12-month warranty) with 40% to 50% capital expenditure savings and same-day emergency loaner standby availability.

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Engineering Datasheet

1000 kVA (1 MVA Substation) Technical Specifications (WAPDA DDS-84 & IEC 60076)

Complete electrical, mechanical, and protection coordination data for electrical consulting engineers and DISCO inspection officers:

Technical Parameter Design Value / Rating Standard & Engineering Notes
Nominal Power Rating 1000 kVA (1 MVA Substation) (800 kW (at 0.8 PF)) Continuous maximum rating at 50°C ambient temperature
Primary High Voltage (HV) 11,000 Volts (11 kV) 3-Phase, 3-Wire delta configuration
Secondary Low Voltage (LV) 415 Volts (Line-Line) / 240 Volts (Line-Neutral) 3-Phase, 4-Wire star configuration with neutral bushing
Rated Secondary Current (LV) 1,391.2 A Continuous full load current at 415V secondary
Rated Primary Current (HV) 52.5 A Continuous full load current on 11 kV grid side
System Frequency 50 Hz ±5% WAPDA / NTDC National Grid synchronized
Vector Group Dyn11 Delta HV / Star LV with 30° phase lag neutral
Cooling Designation ONAN (Oil Natural Air Natural) Thermosiphon circulation through radiator panels
Percentage Impedance (%Z) 5.0% Guaranteed within ±10% IEC tolerance at 75°C reference
No-Load Losses (Iron Losses) 1,550 Watts Measured at rated voltage and frequency (CRGO core)
Full-Load Losses (Copper Losses) 9,500 Watts Measured at rated current at 75°C reference temperature
Transformer Mineral Oil Volume 1,420 Liters Uninhibited Class-I mineral oil (BDV > 50 kV fresh)
Total Weight (with Oil & Fittings) 3,950 kg Active copper winding weight: 1,080 kg
Overall Physical Dimensions 2,150 mm (L) × 1,480 mm (W) × 2,280 mm (H) Overall clearance footprint including radiators and conservator
Recommended HT Drop-Out Fuse Link 11kV Vacuum Circuit Breaker (VCB) Panel with IDMT Relays 11kV overhead cutout fuse link coordination
Recommended LT Main Circuit Breaker 1600A / 2000A 4-Pole Air Circuit Breaker (ACB) with LSIG Microprocessor Thermal-magnetic or electronic trip unit coordination
Recommended Low Voltage Cabling 4 Runs of 3.5 Core 300mm² or Busbar Trunking System (BBT) Sized for <2.5% voltage drop at full load run
Civil Foundation Mounting Dedicated Outdoor Substation Compound on Heavy Reinforced Plinth A 1000 kVA (1 MVA) substation is classified under DISCO B-3 industrial tariff (LESCO, FESCO, GEPCO, IESCO, MEPCO, KE). DISCO regulations require a formal 11kV incoming Vacuum Circuit Breaker (VCB) panel with microprocessor overcurrent and earth-fault protection relays, dual copper grounding grids (<0.5 Ohm), safety interlocks, and a 1600A/2000A Air Circuit Breaker (ACB).
Industrial Applications

Where is a 1000 kVA (1 MVA Substation) Transformer Deployed in Pakistan?

Real-world application engineering scenarios across Pakistani manufacturing complexes, commercial hubs, and industrial zones:

Textile Spinning & Composite Fabric Mills (15,000+ Spindles)

650 to 800 kW Heavy Continuous Inductive Load

Supplies continuous, uncompromised power for multi-line ring spinning frames, roving frames, blowroom lines, central air conditioning chillers, and large industrial compressor rooms in Faisalabad, Multan, and Kasur.

  • Robust dynamic short-circuit mechanical bracing
  • Heavy-duty radiators ensuring top oil temperature rise <50°C
  • Buchholz relay, oil level gauge, and dial thermometer with trip contacts

1 MW Industrial Solar Plant Grid Synchronization

Up to 800-1000 kW Solar Inverter Export Capacity

Serves as the central grid-tie interconnection substation transformer stepping up 415V inverter output to 11kV for DISCO bidirectional net metering (NEPRA B-3/B-4 regulations) with electrostatic shielding.

  • Multi-winding or electrostatic shield to suppress inverter harmonics
  • Low impedance voltage drop under sudden solar radiation changes
  • Full compliance with NEPRA net-metering technical standards

Pharmaceutical API Synthesis & Sterile Production

600 to 780 kW Continuous Critical Power

Powers sterile fermentation reactors, cleanroom HVAC air handling units, distillation columns, WFI water systems, and automated packaging lines in Hattar, Islamabad, and Lahore.

  • Available as Cast Resin Dry-Type for basement fire compliance
  • Low acoustic noise level (<58 dB) for sensitive laboratory zones
  • Turnkey substation EPC with 11kV VCB switchgear and 1600A ACB panel
Quality Assurance

Testing Protocols & DISCO Grid Energization Approval

Every TransfoLine 1000 kVA (1 MVA Substation) transformer undergoes stringent factory routine testing before dispatch to ensure 100% first-time approval during DISCO departmental inspection:

Mandatory Routine Tests Lab Certified

Insulation Resistance (Megger Test) Tested at 2500V DC (HV-LV, HV-Earth, LV-Earth) ensuring insulation values exceed 2,000 Mega-Ohms.
Winding DC Resistance Measurement Measured across all primary tap positions and secondary phases using Kelvin bridge for balance verification.
Voltage Ratio & Vector Group Verification Confirming exact 11,000V to 415V transformation ratio and Dyn11 30-degree phase shift.
Oil Dielectric Breakdown Voltage (BDV) Verified with 2.5mm sphere gap electrode test exceeding 50 kV (brand new units exceed 60 kV).
Separate Source AC Withstand Test HV winding tested at 28 kV AC for 60 seconds; LV winding tested at 3 kV AC for 60 seconds.

DISCO Inspection & NOC Process Turnkey Assistance

Load Sanctioning File Preparation Preparation of single line diagrams (SLD), connected load lists, and tariff change applications.
Substation Civil Pad Inspection Verification of concrete foundation dimensions, gravel oil-sump, and earth pit clearance distances.
Dual Earth Pit Verification (<0.8 Ohm) Separate chemical/copper plate grounding pits for transformer tank body and neutral star point.
Departmental Testing & Meter Sealing Witnessing of testing by DISCO M&T (Metering & Testing) engineers and installation of bidirectional TOD meters.
Direct Quotation

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Specify your factory or commercial plaza parameters. Our high-voltage estimation team will calculate your feeder requirements and deliver an itemized quotation within 2 business hours.

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Technical Clarifications

1000 kVA (1 MVA Substation) Transformer Technical & Procurement FAQ

Direct engineering answers to frequently asked questions about purchasing, installing, and maintaining a 1000 kVA (1 MVA Substation) transformer in Pakistan:

What is the full load current of a 1000 kVA (1 MVA) transformer in Pakistan?

At standard 415 Volts three-phase line-to-line, a 1000 kVA (1 MVA) transformer delivers 1,391.2 Amperes of low-voltage (LV) full load current: 1,000,000 / (1.732 × 415) = 1,391.2 A. On the 11,000V (11 kV) primary high-voltage side, the rated full load current is 52.5 Amperes.

What main switchgear breaker is required for a 1000 kVA transformer?

A 1600A or 2000A 4-Pole Air Circuit Breaker (ACB) with a microprocessor-based trip unit providing adjustable Long-time, Short-time, Instantaneous, and Ground-fault (LSIG) protection is the engineering standard. On the high-voltage 11kV side, an indoor or outdoor 11kV Vacuum Circuit Breaker (VCB) panel with IDMT numerical relays is mandated by DISCOs.

What are the civil pad and foundation requirements for a 1000 kVA transformer?

A 1000 kVA transformer weighs approximately 3,950 kg (nearly 4 metric tons). It requires a heavy reinforced concrete foundation plinth (minimum 3000 psi concrete) measuring at least 2,800 mm × 2,200 mm × 400 mm deep, surrounded by an oil-soak gravel pit capable of retaining 100% of the 1,420 liters of oil, enclosed by 2.2-meter security chain-link fencing.

What size PFI capacitor bank is required for a 1000 kVA (1 MVA) substation?

A 350 kVAR to 450 kVAR automatic Power Factor Improvement (PFI) panel divided into 12 to 16 microprocessor-controlled capacitor steps with 7% detuned harmonic reactors is required to maintain plant power factor above 0.95 and avoid severe DISCO low power factor penalties.

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