Outdoor pole-mounted R-type bushing power transformer, 20kV/15kV. 4000/5000VA capacity, special R-type bushing design. Epoxy resin cast construction. Compliant with IEC 60076 standards. Weather-resistant, easy integration with switchgear.
This is a 20kV/15kV single-phase dry-type power transformer for outdoor pole-mounted switchgear control power. It is suitable for control power applications but not for metering or protection.
| Parameter | Specification | Verification |
|---|---|---|
| Product Type | Power Transformer | IEC 60076, GB 1094 |
| Model Code | DC4-5-20-15R | Factory nameplate marking |
| Primary Voltage | 20kV/15kV | Rated voltage test (IEC 61869-1/3) |
| Secondary Voltage | [On Request] | Ratio check at rated frequency |
| Accuracy Class | [On Request] | Accuracy test (IEC 61869-2 / IEEE C57.13) |
| Rated Burden | [On Request] | Burden test at rated VA |
| Insulation Type | Dry Epoxy Resin | Dielectric tests per standard |
| Insulation Level (BIL) | [On Request] | Power-frequency & lightning impulse withstand |
| Standards | IEC 60076, GB 1094 | Certified to listed standards |
| Frequency | 50/60Hz | Per IEC 61869-1 |
| Environment | Outdoor pole-mounted R-type bushing epoxy resin cast | Per datasheet limits |
Ideal For
Not Recommended For
For power transformers, ensure the secondary winding is grounded at one point. Follow IEC 60076 terminal markings: primary terminals H1/H2, secondary X1/X2. Never operate with secondary open-circuited if supplying inductive loads. Verify polarity for parallel operation.
Compliant with: IEC 60076, GB 1094
S_total = ΣS_instrument + I₂² × (ρ × 2L / A)
Q: What is the insulation level of this transformer?
A: The spec does not provide insulation level; it is [On Request].
Q: Can this transformer be used for voltage measurement?
A: No, it is a power transformer for control power, not a voltage transformer for metering.
Q: Is the primary voltage selectable?
A: Yes, the primary can be connected for 20kV or 15kV as per the spec.
Missing fields are marked [On Request] — never fabricated. M2/M5/M6 verification rows follow IEC 61869 / IEEE C57.13 conventions.
| Model | Rated voltage ratio (kV) | Accuracy classCombined | 220V winding rated output (VA) | 100V winding rated output (VA) | Weight (kg) |
|---|---|---|---|---|---|
| DC-4、5/20R | 20/0.22 15/0.22 | 0.2、0.5 | 4000、5000 | — | 110 |
| DC-4、5/15R | 20/0.1/0.22 15/0.1/0.22 | 0.2、0.5 | 4000、5000 | 30、60 | 110 |
Dimension & outline drawing of DC4-5-20-15R — click image to zoom / view original.
