GDAS-500 On-site DC Circuit Breaker Detector
HV Hipot Electric Co., Ltd.- Function:Storage
- Display:Digital
- Usage:Circuit Breaker
- Type:Electrolytic Capacitor Leakage Current Tester
- Environment:Low Temperature
- Warranty:With Warranty
Base Info
- Power Source:DC 100V-300V
- Weight:〉10Kg
- Installation:Portable Precise
- Customized:Customized
- Transport Package:Wooden Case
- Specification:ISO, SGS
- Trademark:Hvhipot
- Origin:China
- HS Code:9030332000
- Production Capacity:2000PCS,Year
Description
Basic Info.
Power Source DC 100V-300V Weight 〉10Kg Installation Portable Precise Customized Customized Transport Package Wooden Case Specification ISO, SGS Trademark Hvhipot Origin China HS Code 9030332000 Production Capacity 2000PCS/YearProduct Description
GDAS-500 DC Circuit Breaker Test SetI. General Information
Circuit Breakers are one of the critical "safety-valves" of electrical systems and basic maintenance procedures are essential to maintain maximum reliability.
According to the actual situation of the DC circuit breaker ampere-second characteristic test system, our company has introduced a DC circuit breaker ampere-second characteristic test system suitable for substation site use, easy to carry, and high degree of automation. It can provide DC protection for the operation and maintenance department. Characteristic testing methods are used to verify the action characteristics and level difference coordination of DC protection appliances, so as to improve the reliability of the DC system operation and ensure the safe and reliable operation of the power grid.
II. Features
- 320*240 LCD screen, thermal printer, interactive keyboard operation, and intelligent operation system.
- Power electronics controlling technique has been adopted to output high current, which is high speed, high precision and continuous adjustability.
- Current range can be automatically switched by multiple high precision sensors.14-digit AD acquisition chip of high capacity.
- Automatic data storage. Be capable of saving 200 testing results, which will not lose in power failure.
- Optional for ampere-second characteristic test (action test) or through current characteristic test (non-action test).
III. Main Functions
According to National Standard, the DC circuit breaker should be made trip test.
1. Time-current Characteristic Test
A. Power on the breaker with 1.13In current (non-tripping current) till to required time, the breaker should not trip. Then increase the current to 1.45In (tripping current) within 5 seconds, the breaker should trip within required time.
B. Power on each level of the breaker with 2.55In current, break time > 1 second.
Break time < 60seconds when rated current of circuit breaker ≤ 63A.
Break time < 120seconds when rated current of circuit breaker > 63A.
2. Instantaneous Tripping Test
- B type Circuit Breaker: Power on each level of circuit breaker with 3In current, break time should be more than 0.1s.
Power on each level of circuit breaker with 5In current, break time should be less than 0.1s.
B. C type Circuit Breaker: Power on each level of circuit breaker with 5In current, break time should be more than 0.1s.
Power on each level of circuit breaker with 10In current, break time should be less than 0.1s.
C. D type Circuit Breaker: Power on each level of circuit breaker with 10In current, break time should be more than 0.1s.
Power on each level of circuit breaker with 50In current, break time should be less than 0.1s.
These two tests should be meets the specifications of time-current characteristic table.
Test item | Type | Test current | Initial State | Limit of tripping or non-tripping | Expected Result |
a | B,C,D | 1.31In | Cold State | t≥1h (In≤63A) t≥2h (In>63A) | Not tripping |
b | B,C,D | 1.45In | Following with test of item a | t<1h (In≤63A) t<2h (In>63A) | Tripping |
c | B,C,D | 2.55In | Cold State | t<1h (In≤63A) t<2h (In>63A) | Not tripping |
d | B,C,D | 3In, 5In, 10In | Cold State | 1s<t<60s (In≤63A) 1s<t<120s (In>63A) | Tripping |
e | B,C,D | 5In, 10In, 50In | Cold State | T<0.1s |
Note: 1) Current is stable and up to setting value within 5s.
2) Cold State means test object (DC circuit breaker) is not connected before testing and making test under standard calibration temperature.
IV. Specifications
- Power supply: AC220V±20%, 50Hz±0.5Hz
- Testing current range: 5-500A
- Testing current ripple coefficient: < 1%
- Stability of output current: ≤ ±1%
- Time record range: 0.001s-1000s
- Minimum time resolution: 0.001s
- Environmental temperature: -20~50ºC.
- Size: 230mm (width)*450mm (height)*500mm(depth), include Including aluminum box, accessories 290mm (width) * 530mm (height) * 550mm (depth)
- Weight: about 12.5kg. Accessories 10kg
- Packing: aluminum alloy instrument box
- Do not need any protective measures, can be tested directly