(Repair, Test) Electric Level 3 Test Category Installation of Power Facilities
Installation and test instruments:
Power frequency AC withstand voltage test device, grounding continuity tester, transformer DC resistance tester, transformer ratio tester, transformer winding deformation tester, on-load tap changer tester, circuit breaker characteristic tester, zinc oxide arrester resistive current tester, three-phase relay protection tester, lightning counter calibration instrument, insulation resistance tester, megger, dual-clamp phase digital volt-ampere meter.
DC high voltage generator, variable frequency series resonance test complete set, power frequency withstand voltage test device, induced withstand voltage test device, high voltage dielectric loss tester, loop resistance tester, transformer volt-ampere characteristic tester, ground resistance tester
Table of main test equipment configuration for Level 3 repair, installation, and test qualifications
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No. |
Equipment Name |
Specification/Model |
Quantity |
Application Range / Purpose |
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I. High Voltage Generation Equipment |
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1 |
DC High Voltage Generator |
ZGF-200KV/3mA |
1 set |
DC: 200kV/3mA for testing transformers, arresters, and DC withstand voltage tests |
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|
DC High Voltage Generator |
DC: 120kV/2mA |
1 set |
DC: 120kV/2mA for testing transformers, arresters, and DC withstand voltage tests |
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|
2A |
Power Frequency AC Withstand Voltage Test Complete Set |
TQSB-10KVA/110KV |
1 set |
AC: 10kVA/110kV for transformers, switches, PT/CP reactors (35KV) |
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|
2B |
TQSB -5KVA/50KV |
1 set |
AC: 5kVA/50kV for transformers, cables, arresters, etc. AC withstand voltage (10kV) |
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|
3 |
Variable Frequency Series Resonance Test Complete Set |
GHXZ-500kVA/200kV |
1 set |
500kVA/200kV/2.5A/30～300Hz for cables, transformers, etc. |
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|
4 |
Induced Withstand Voltage Test Device |
SBF-15kVA/600V |
1 set |
15kVA/600V 150Hz for induced withstand voltage tests on graded insulated electrical equipment |
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II. Electrical Measuring Instruments |
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|
1 |
Loop Resistance Tester |
GHL-100A |
2 units |
DC: ≥100A for high-voltage switches, GIS, disconnectors |
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|
2 |
Transformer Volt-Ampere Characteristic Tester |
HGQ-600 |
1 unit |
(1100V/5A) for 110kV current transformers (CT/PT) |
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|
3 |
Capacitance and Inductance Tester |
GHRG |
1 unit |
Three-phase simultaneous measurement, capacitors, inductors |
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|
4 |
Ground Continuity Tester |
GHJD-10A |
1 unit |
Conductivity of the connection parts between power equipment and ground grid |
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|
5 |
Transformer Winding Deformation Tester |
GHBX-III |
1 unit |
Frequency response method |
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|
6 |
Circuit Breaker Dynamic Characteristic Tester |
GKC-H |
2 units |
Class 0.2, 12 breaks |
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|
7 |
Zinc Oxide Arrester Resistive Current Tester |
YHX-10A |
1 unit |
DC: ≤1A for transformers |
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|
8 |
Three-Phase Relay Protection Tester |
GHJB-300 |
1 unit |
Three-phase voltage, two groups each of voltage and current |
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|
9 |
Transformer On-Load Tap Changer Tester |
BYKC-2000 |
1 unit |
≥1A to check the complete action sequence of the selector switch and contacts |
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|
10 |
High Voltage Dielectric Loss Tester |
GHJS |
2 units |
Dielectric loss tests on transformers, transformers, bushings, etc. |
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|
11 |
Lightning Counter Operation Tester / Rod Type |
FZ-Z |
1 piece |
Check whether the arrester discharge counter operates normally |
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|
12 |
Insulation Resistance Tester |
GH2672 |
2 units |
DC: 0～5000V 200G(MΩ) short-circuit current ≥3mA |
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|
13 |
Ground Grid Ground Resistance Tester |
GHDW-5A |
1 unit |
Heterodyne method, check ground grid resistance |
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|
14 |
Transformer DC Resistance Tester |
ZGY-10A |
2 units |
DC resistance test on transformers |
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|
15 |
Transformer Ratio Tester |
GHBZC |
1 unit |
Class 0.5, digital type |
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III. Oil and Gas Testing Instruments |
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|
1 |
SF6 Leak Detector |
XP-1A |
1 unit |
SF6 gas leak detection and measurement |
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|
5 |
Moisture Meter |
GHWS |
1 unit |
SF6 gas trace moisture measurement |
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IV. Common Instruments and Meters |
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1 |
Megger |
BY2671 |
1 piece |
DC: 2500V for transformers, cables, lines, etc. |
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|
2 |
Megger |
BY2670 |
1 piece |
DC: 500V for transformers, cables, lines, etc. |
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|
3 |
Digital Dual-Clamp Phase Volt-Ampere Meter |
SMG2000 |
1 piece |
Measure current less than 50mA, measure voltage, current, and phase |
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