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

200 kVA Transformer in Pakistan — Price, Specs & Turnkey Supply

Q: What is the full load current of a 200 kVA transformer?

At standard 415V three-phase secondary voltage, a 200 kVA transformer produces 278.2 Amperes of full load current: 200,000 / (1.732 × 415) = 278.2 A. On the 11 kV primary side, the rated full load current is 10.5 Amperes.

Q: What main breaker rating is recommended for a 200 kVA transformer?

The recommended LT circuit breaker is a 320A or 400A Molded Case Circuit Breaker (MCCB) with thermal-magnetic adjustable trip settings. For critical industrial plants, an electronic trip unit with ground-fault protection is recommended.

Q: Can a 200 kVA transformer be pole-mounted?

While smaller units are 2-pole mounted, a 200 kVA transformer weighing approximately 1,120 kg typically requires a reinforced 4-pole platform structure or preferably a ground-level concrete plinth for safe operation and easier maintenance access.

Q: What size PFI plant is required for a 200 kVA transformer?

To maintain a 0.95+ power factor and prevent heavy DISCO low power factor penalty surcharges, a 60 kVAR to 75 kVAR automatic Power Factor Improvement (PFI) capacitor bank with harmonic detuned reactors is recommended.

The 200 kVA distribution transformer is the primary standard workhorse for multi-story commercial towers, petrol filling stations equipped with DC fast EV chargers, plastic injection moulding facilities, and flour chaki grinding mills in Pakistan. Delivering 278.2 Amperes of full-load continuous current at 415V three-phase, this unit delivers exceptional operational reliability and thermal stability under continuous heavy duty industrial operation.

Rated LV Current 278.2 A

Rated HV Current 10.5 A

Full Load Efficiency 98.4%

Impedance (%Z) 4.0%

Request 200 kVA Quote & Specs → 📞 Call Substation Engineer: 0300 6919113 View Technical Datasheet ↓

200 kVA Unit Blueprint TL-200KVA-DDS84

✓ Pure Copper Windings: 99.99% conductivity, tested to withstand 50°C summer heat.

✓ Low Loss Standards: 440 Watts iron loss, 2,650 Watts copper loss at 75°C.

✓ DISCO Approval Guarantee: LESCO, FESCO, GEPCO, IESCO, MEPCO, KE inspection compliant.

Immediate Feeder Dispatch Ready 18-Month Warranty

Commercial Transparency

200 kVA Transformer Price in Pakistan — Key Cost Factors

Commercial pricing for a 200 kVA 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 340 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.

200 kVA Commercial Summary

A 200 kVA transformer price in Pakistan is governed by winding conductor purity (99.99% Electrolytic Copper vs. EC Aluminium), core steel lamination grade (M4 vs. M5 CRGO steel), transformer tank thickness, and testing laboratory accreditation. Certified reconditioned units provide plant managers with an immediate, cost-effective solution (40% to 50% discount) for auxiliary factory backup or rapid project commissioning without waiting weeks for fresh factory casting.

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Engineering Datasheet

200 kVA 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	200 kVA (160 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)	278.2 A	Continuous full load current at 415V secondary
Rated Primary Current (HV)	10.5 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)	4.0%	Guaranteed within ±10% IEC tolerance at 75°C reference
No-Load Losses (Iron Losses)	440 Watts	Measured at rated voltage and frequency (CRGO core)
Full-Load Losses (Copper Losses)	2,650 Watts	Measured at rated current at 75°C reference temperature
Transformer Mineral Oil Volume	340 Liters	Uninhibited Class-I mineral oil (BDV > 50 kV fresh)
Total Weight (with Oil & Fittings)	1,120 kg	Active copper winding weight: 285 kg
Overall Physical Dimensions	1,280 mm (L) × 880 mm (W) × 1,420 mm (H)	Overall clearance footprint including radiators and conservator
Recommended HT Drop-Out Fuse Link	15A / 20A Drop-Out Cutout Fuse Link	11kV overhead cutout fuse link coordination
Recommended LT Main Circuit Breaker	320A / 400A Molded Case Circuit Breaker (MCCB)	Thermal-magnetic or electronic trip unit coordination
Recommended Low Voltage Cabling	Single Core 185mm² or 3.5 Core 240mm² Cu / XLPE Cable	Sized for <2.5% voltage drop at full load run
Civil Foundation Mounting	4-Pole Platform Structure or Outdoor Concrete Plinth	A 200 kVA transformer requires B-2 industrial load sanctioning from LESCO, FESCO, GEPCO, IESCO, MEPCO, PESCO, or K-Electric. Ground plinth mounting with perimeter protective fencing and gravel bed oil soaking is strongly recommended due to the 1,120 kg overall unit weight.

Industrial Applications

Where is a 200 kVA Transformer Deployed in Pakistan?

Real-world application engineering scenarios across Pakistani commercial facilities, textile mills, and agro-industrial clusters:

Delivers continuous, stable three-phase distribution for commercial corporate offices, shopping arcades, and bank branches running centralized VRF air conditioning, high-speed passenger elevators, and uninterruptible data networks.

High dielectric oil breakdown voltage (>55 kV)
Automatic power factor improvement (PFI) panel (60 kVAR)
Separate body and neutral earthing pits (<1 Ohm)

Dedicated step-down power station for modern highway petrol stations on Motorways (M-2, M-3, M-5) and GT Road operating commercial fast EV charging dispensers alongside fuel pumps, c-stores, and car wash facilities.

Harmonic filtration protection
Low voltage drop under sudden 150A pulse loads
Outdoor weatherproof steel enclosure

Powers multiple 80-ton to 150-ton hydraulic plastic injection moulding machines, extruders, chillers, and granulators in Lahore, Karachi, Gujranwala, and Faisalabad industrial clusters.

Robust dynamic short-circuit mechanical strength
Off-circuit tap changer (OCTC) ±2.5%, ±5%
Routine WAPDA DDS-84 loss compliance

Quality Assurance

Testing Protocols & DISCO Grid Energization Approval

Every TransfoLine 200 kVA 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 (<1.0 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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Technical Clarifications

200 kVA Transformer Technical & Procurement FAQ

Direct engineering answers to frequently asked questions about purchasing, installing, and maintaining a 200 kVA transformer in Pakistan:

What is the full load current of a 200 kVA transformer?

At standard 415V three-phase secondary voltage, a 200 kVA transformer produces 278.2 Amperes of full load current: 200,000 / (1.732 × 415) = 278.2 A. On the 11 kV primary side, the rated full load current is 10.5 Amperes.

What main breaker rating is recommended for a 200 kVA transformer?