Keynetgrid
PNACHO-D 800 – 800 kVA 21/0.8 kV Cast-Resin Dry-Type Transformer for PV
Ecodesign Tier 2
5-year warranty
PND-800-21-0-8
Dry-type transformers – PNACHO-D

PNACHO-D 800 kVA 21 / 0.8 kV · Dyn11

PND-800-21-0-8

PNACHO-D 800: 800 kVA cast-resin dry-type transformer, 21/0.8 kV, Dyn11, class F, C3/E3/F1, Ecodesign Tier 2 (P0 ≤ 1170 W, Pk ≤ 8000 W). CE, routine-tested, 5-year warranty, delivery across Europe. Low-voltage side 0.8 kV for photovoltaic inverters.

Rated power
400630800 kVA10001250 all 11 ratings →
High voltage
6.3 kV10 kV21 kV
Low voltage
0.42 kV0.8 kV · PV
Vector group
Dyn11 standard
No-load losses P01170 W
Load losses Pk (75 °C)8000 W
= Tier 2 limit · (EU) 2019/1783uk 6 %
Standard configurations available from stock · delivery to any EU country
Data sheet PDF
Delivered with routine test report, EU declaration of conformity, rating plate and operating manual. 60-month warranty.

The PNACHO-D 800 is a three-phase, vacuum-cast epoxy-resin dry-type transformer for 21 kV networks in buildings and industrial plants where fire safety matters: self-extinguishing class F1, climatic class C3 and environmental class E3 to IEC/EN 60076-11. It complies with Ecodesign Tier 2 – Regulation (EU) 2019/1783 – and needs no oil, no bund and no fire-suppression system.

PV version: the 0.8 kV low-voltage winding is matched to central photovoltaic inverters (PV step-up transformer), with reinforced LV insulation and dimensioning for harmonic load.

Technical data

Rated power800 kVA
High voltage21 kV
Low voltage0.8 kV
Vector groupDyn11
Tapping range±2 × 2.5 % (5 positions), off-circuit
Frequency50 Hz
CoolingAN (AF +40 % on request)
No-load losses P0≤ 1170 W
Load losses Pk (75 °C)≤ 8000 W
Short-circuit impedance uk6 %
Sound power level LWA49 dB(A)
Insulation level HV (LI/AC)LI 125 / AC 50 kV
Dimensions L × W × H1470 × 850 × 1700 mm
Total mass≈ 2340 kg
WindingsAluminium, vacuum-cast epoxy (copper on request)
Protection / finishIP00 indoor (IP21–IP44 enclosure on request), class C3/E3/F1, insulation class F
StandardsIEC/EN 60076-11, EN 50588-1, EN 50708, (EU) 2019/1783, CE (LVD, EMC, RoHS)
Efficiency classEcodesign Tier 2 – (EU) 2019/1783
Warranty60 months

Standard equipment

Vacuum-cast epoxy HV windings, aluminium foil LV windings
Grain-oriented, step-lap core with anti-corrosion coating
Off-circuit tapping links ±2 × 2.5 %
3 × PT100 sensors in LV windings + temperature monitoring relay T-154
Bi-directional rollers, lifting lugs, earthing terminals
Rating plate and wiring diagram, EU energy label
Partial discharge ≤ 10 pC

Options on request

Copper windings (Cu/Cu)Enclosure IP21 – IP44Forced-air cooling AF (+40 % power)Low-voltage 0.4 kV or 0.69 kVVector group Dyn5Dual-voltage HV winding (e.g. 10/21 kV)Anti-vibration pads, surge arrestersEnclosure temperature sensors and fan control

Documents

Technical data sheet · PNACHO-D 800 kVAPDF
The routine test report of the individual unit is sent with the delivery.

Testing and conformity

Every unit undergoes routine tests to IEC 60076: no-load loss and current, load loss and impedance at 75 °C, winding resistance, voltage ratio and vector group, induced and applied voltage withstand, insulation resistance. Type tests (lightning impulse, temperature rise, short-circuit withstand, sound level) are available on request. Each transformer is delivered with test report, EU declaration of conformity (CE – LVD, EMC, RoHS, Ecodesign) and operating manual.

Applications

Photovoltaic and battery storage plants, wind farms, hybrid renewable installations.

Delivery and warranty

Standard configurations are available from European stock with short lead times; other voltage ratios, vector groups, copper windings and accessories on request. 5-year warranty. Delivery to any EU country, technical support in English, German and Polish.

Send us the rated power, voltages and delivery address.
Quote within 24 hours. Our engineers answer in English, German and Polish.
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