Alternative Voltage AC Test System, Cylinder Type AC Test Transformer

Transkript

1 Alternative Voltage AC Test System, Cylinder Type AC Test Transformer ( AC Voltage up to 2500kV, Current up to 50A) 2250kV 4500kVA AC Test Transformer for Chinese Nation Grid 200. Height: more than 25meter Weight: 200 Ton Outdoor use Successful running 2 year without any problem. Three modules, Each module 750kV *This is the biggest AC TEST SYSTEM all over the world. *For more details, welcome to HIMALAYAL website:

2 APPLICATION Conventional AC test transformers are especially designed for testing objects of medium capacitance. These systems are particularly suited for tests requiring stable voltage even if the load changes under voltage (corona, wet & pollution tests) or when the load is inductive (inductive voltage transformers). The possibility of stacking several of these transformer modules allows reaching very high voltage levels by keeping reasonable floor space. STANDARD IEC60060 IEC60 DL/T GB GB JB JB/ /T SYSTEM QUALITY Himalayal is ISO 900/2008 certificated company, every system of us should undertake strict testing in our high voltage laboratory to make sure meet client requirement. The system itself equips OVERVOLTAGE, OVERCURRENT, OBJECT BREAKDOWN protection to minimize the damage to the system and operating staff. To some ultra highh requirement system, we also equip PD automatic inspection function and switch off when object PD level surpasses setting value. Himalayal HV Laboratory: L: 60meter W: 28meter H: 25meter Background PD<pC SYSTEM CONFIGURATION The test system includes following main components: AC Test transformer(s) Coupling capacitor / HV divider / HV filter Power line filter Regulating transformer Compensating reactor Switchgear Cabinet Control system & Measuring System 2

3 TYPIC DIAGRAM FOR AC TESTT TRANSFORMER HCTT SERIES CYLINDER TYPE TEST TRANSFORMER TECHNICAL PARAMETER: SINGLE MODULE AC Test Transformer, Dimensionn Net Weight Type HCTT, HV Voltage Current Secondary Dia x H approx. kv A Voltage approx h on, h off, 8 time per day duty kv A kv m kg HCTT , 0.38, 0.4 Φ0.3 x HCTT00 00 Φ.0 x HCTT Φ.5 x HCTT Φ.95 x HCTT Φ 2. x HCTT Φ3.0 x HCTT , 3, 6, 0 Φ2.2 x HCTT , 3, 6, 0 Φ2.2 x HCTT , 3, 6, 0 Φ3.5 x HCTT , 3, 6, 0 Φ4.0x HCTT , 3, 6, 0 Φ4.5 x

4 Single module Two modules Three modules MULTIPLE MODULE AC Test Transformer, HV Voltage Current Secondary Dimension Net Weight Type HCTT, Voltage Dia x H approx. kv x Modules A approx h on, h off, 8 time per day duty kv A kv m kg HCTT 50 X , 3, 6, 0 Φ.8 x HCTT 375 X , 3, 6, 0 Φ3.5 x HCTT 500 X , 3, 6, 0 Φ3.8 x HCTT 600 X , 3, 6, 0 Φ4.5 x HCTT 500 X , 3, 6, 0 Φ4.9 x HCTT 500 X , 3, 6, 0 Φ 6. x HCTT 600 X , 3, 6, 0 Φ6.5 x HCTT 750 X , 3, 6, 0 Φ6.5 x AVAILABLE SELECTION Inductance for coupling capacitor to form (LC) HV voltage filter; SF6 Gas insulated standard capacitor; Digit partial discharge tester / Manual partial discharge tester; Air cushion for heavy system movement in HV laboratory; Water termination & Water Conditioning unit for power cable testing Other devices clients need. 4

5 CONDITION FOR THE AC TESTT SYSTEM Use environment: Indoor or Outdoor Extreme temperatures for H.V. components: Height above sea level 000 m for each add. 00 m, the HV rating must be decreased by % Relative humidity in main hall under non condensing conditions <90% (at 20 ) Does not have the fire and the explosion material Non electric conduction dust The waveform of the supply voltage is the actual sine wave, waveform deviation factor <3% Equipped with a reliable grounding point, earth resistance <0.5Ω Very low partial discharge HIMALAYAL Service: Delivery test and field test Installation on USER HV bay Training on how to use the HV system Training on how to maintains the HV system All other Technical supports SYSTEM COMPONENT: ). Coupling Capacitor & HV Filter & Capacitance Voltage Divider APPLICATION HCC series coupling capacitors are used as resonant system base load, separation of PD signals from the high voltage, measuring AC voltages and attenuating interferences from HV side(together with a HV inductance). MAIN FEATURE Structure: Cylinder type, Oil immersion Freezing mode: natural freeze, Phases number: Single phase Waveform deviation: <3% Noise level: < 70 db (4 meters distance) Very low partial discharge level 5

6 HV FILTER HVF By adding an inductance to the coupling capacitor, they form the HV filter HVF, which attenuates interferences coming from the HV reactor of resonant system or transformer side. The HV filter inductance is connected between the reactor or transformer and coupling capacitor or between two coupling capacitors. Capacitance Rated Partial Top electrode Height Weight Model Voltage discharge level dimension (pf) (kv) (pc) (mm) (mm) (kg) HCC00/ HCC200/ HCC300/ HCC500/ HCC600/ HCC800/ HCC500/ HCC2000/ *If need customized, HIMALAYAL can also meet the requirement. 2). Voltage Regulator Applied standard: IEC 76., IEC 76.2, IEC 296, IEC 50(42) 990 Parts Parameters: Aberration Ration of Waveform: 3% Starting Voltage.5% Shortcircuit Impedance: 0% (in range of 50%~00%, impedance is being linearity) Cooling: ONAN Mode of Regulation: electrical drive TEDGC serial Regulator Dry Type TYDZ serial Regulator Oil Type 6

7 Note: include magnetism oil surface indicator, servo motor driving device, position indicator with terminal contacts and protection contacts. The symmetrical compensation and reversed polarity voltage regulation circuit is adopted so that outpu voltage of the regulator keeps smooth and linearity, and regulating speed can be set and to be very stable. The interlock between voltage regulator, control table and secondary switch are available. Rated Input Output Input Output Composition of Equipment Oil Total Overall Mode Capacitance Voltage Range Current Current product Weight Weight Weight Weight kva V V A A Name Quantity kg kg kg kg TYDZ20 TYDZ00 TYDZ50 TYDZ300/ Regulator Regulator Regulator Regulator TYDZ500/ Trans Regulator TYDZ500/ Trans TYDZ750/ TYDZ000/ *If need customized service, please contact with HIMALAYAL sales. Trans Regulator Trans Regulator ) Current Limit Resistor Also name as Damping Resistor, The device is mainly used to protect the device from the high current at test object circuit when test object short circuit or breakdown. Current and inductance can be customized. The parameter for such component is matched with the ac test system. Theree are two type of damping resistor, horizontal type and vertical type, the selection of the structure normally depends on the layout space and customer requirement. Vertical Type Horizontal Type 7

8 4). Compensation Reactor The compensation reactor normally is oil immersed with multiple taps, connected between voltage regulator and test transformer, which reduce the power requirement of the voltage regulator and primary switchgear cabinet and primary power noise filter; HCR Serial Compensation Reactor Oil immersed Stationary iron coil Model HCR 200/0.6 HCR 2X300/3 HCR 000/3 HCR 000/6 Rated Voltage 0.6kV 3kv 3kV 6kV Rated Current Customized Customized Customized Customized Capacitance 200kVar 600kVar 000kVar 000kVar *For other capacitance compensation reactor, please contact with HIMALAYAL sales. 5).Digital Control Console AC2000 & AC200 The digital control console integrated the function of following Raise/reduce voltage the system Automatic / manual operation mode Interlock function Raising speed control Withstand Timing Alarm bell Record for testing Voltage changing speed control Status of each system components in the CIRCUIT Control Cabinet Control Console Automatic Test System l Interface 8

9 .CN Shanghai Himalayal Co.,Ltd Office: , 088A, New Jinqiao Road, Shanghai, 20206, China Tel: ; Fax: Mail: Website: Himalayal Corporation Limited Headoffice: 23F Citybank Group Building, Huayuanshiqiao Road, Shanghai, 20020, China Tel: Website: