WUHAN FANKE HAIWO HIGH VOLTAGE TECHNOLOGY CO.,LTD. |
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Power frequency withstand voltage test equipment
1. Main features
The CQSB series of high-voltage test
transformers have the characteristics of small size, light weight,
and strong versatility. In addition to the equipment widely used in
various large and small high-voltage test chambers (stations), they
are more suitable for various high-voltage electrical insulation
tests on site. The test console together constitute a power
frequency withstand voltage complete test device.
2. Scope of application
Perform AC withstand voltage test for power system
operating equipment, insulation performance test for insulation
tools, and meet the requirements of 60kV power frequency withstand
voltage test. This set of equipment is mainly used for 10kV
switchgear withstand voltage test, discharge gap discharge voltage,
and lightning arrester AC reference voltage test And rural
distribution network transformer test, etc.
3. Conditions of use
1) Altitude: ≤1000m
2) Ambient temperature: -20℃~+50℃
3) Relative air humidity: ≤80%, no condensation
4) Earthquake resistance: ≤8
5) Ground horizontal acceleration 3.0m/s2, ground
vertical acceleration 1.5m/s2
6) The waveform of the power supply voltage is an
actual sine wave, and the waveform distortion rate is less than 3%
7) Set up a reliable grounding point, grounding
resistance <0.5Ω
8) Installation location: indoor and outdoor
4. follow technical standards
GB 50150-2016 Electrical equipment installation
engineering electrical equipment handover test standard
Q/CSG1205019-2018 Power Equipment Handover Acceptance
Regulations
Part of GB 26861-2011 Electric Power Safety Working
Rules for High Voltage Laboratory
DL 5009.3-2013 Safety Work Rules for Electric Power
Construction Part 3: Substation
JB/T9641 test transformer
GB10229 reactor
GB1094.1~GB1094.5 Power Transformer
GB/T.311.1 Insulation and coordination of
high-voltage power transmission and transformation equipment
GB/T16927.1 High Voltage Test Technology Part One
General Test Requirements
GB/T16927.2 High Voltage Test Technology Part 2
Measurement System
GB7328 Sound level measurement of transformers and
reactors
GB/T509 Power Transformer Test Guide
GB4208 enclosure protection level
GB/T191 Packaging, Storage and Transportation Graphic
Mark
DL/T 848.2 General technical conditions for high
voltage test equipment Part 2: Power frequency high voltage test
equipment
GB5273 Terminals for transformers, high-voltage
electrical appliances and bushings
GB/T11920 General technical conditions for
centralized control devices for electrical parts of power stations
IEC60-1 High Voltage Test Technology
DL/T 846.1 General technical requirements for high
voltage test equipment Part 1: High voltage divider measurement
system
5. The composition of the complete set of equipment
1) Inflatable AC test transformer
CQSB(J)-12kVA/60kV/0.2kV 1 set
2) 1 console (including voltage regulator)
TC-12kVA/0.22kV
3) Protection current limiting resistor BHR-
0.2A/0.6kΩ 1 pc
6. Overall technical parameters
1) Rated capacity: 12kVA;
2) Working power supply: 220V;
3) Working frequency: 50Hz;
4) Rated output voltage: 60kV (AC);
5) Rated output current: 0.2A
6) Insulation level: keep for 10 minutes under
no-load 1.1 times the rated voltage, all parts are normal;
7) Waveform: Sine wave
8) Waveform distortion: <3%
9) Running time: 5min continuous work under rated
capacity;
10) Temperature rise: the temperature rise of each
component under rated operation conditions is ≤65K;
11) High voltage stability, small random
fluctuations, ≤1% when the power supply voltage changes ±10%
12) The test transformer and the console are
separated structures
13) Equipment service life: more than 10 years;