Application:

This equipment is mainly used under ≤ 50KV test voltage for power products such as transformers, power transformers, high voltage circuit breakers, cables accessories, products for power frequency voltage withstand test and partial discharge test and research pilot.

Working Conditions:

Altitude: ≤ 2500m

Temperature: -15℃ ~ +45℃

Relative humidity: ≤90%RH

Standard

JB/T9641-1999  …………………《Test Transformer》

GB/T.311.1-1997  ……………《Insulated high-voltage transmission and distribution equipment and cooperation》

GB/T 16927.1-1997  ……………《HV Test Technology》Charter 1

GB/T 16927.2-1997………………《HV Test Technology》Charter 2

GB7328-87………………………《Transformer and reactor sound levels measured》

GB/7354-2003 …………………《PD Test》

GB/T509-1991 …………………《Power Transformer Test Rule》

GB2536-1990……………………《Transformer Oil》

GB7252-87………………………《Transformer oil dissolved gas analysis and assessment guidelines》

JB8749-1998……………………《General requirements for voltage regulator》

Equipment components

PD Test Transformer

1. Rated capacity: 5kVA

2. Output voltage:0- 50kV

3. Input voltage: 200V ±10%

4. PD Volume under rated voltage ≤ 5PC

5..Output Current: 100mA

6. Phase: Single Phase

  7. Voltage accuracy: AC 1.5%

7. Power supply distortion: <3%   

9. Dielectric medium: SF6

10.Size: Ф320*800mm

11. Weight: 45kgs

Control unit

Functon:

1.Zero position function,digital voltage/current display.

2.Time Ralay control alarming warning; alarm with light

3.Over-current/voltage protection, breakdown protection.

4.Continuous adjusting voltage, without waveform distortion.

5. Voltage return to zero when testing is over.

Parameters:

1.Rated capacitance: 5kva

2.Input voltage:220V±10%

3.Output current: 25A

4.Output voltage: 0-250V

  5.Size: 400*360*350mm

  6.Weight:25kgs

Power Isolation Filter

1.Input Voltage：200V±10%

2.Output voltage：200V±10%

3. Rated Capacitance：5KVA

4. Resistance voltage: ≤5%

5.Unload loss: ≤5%

5. Reduction Character：10KHz～100KHz ≥20dB; 100KHz～30MKHz ≥60dB

6. PD level：Q≤ 5PC under rated voltage

7. Size：350 × 350 × 420mm

8. Weight：30Kg

PD Coupling Capacitor

1.Capacitance: 200pF

2.PD Volume:≤ 5PC

3.Coupling Capacity: 50KV

4.Equipotential shielding: 1 unit

4.Size: Height 800mm, Ф80mm

5.Weight: 23kgs

Current Limit Resistance

1.Creepage:>100KV

2.Height: 300mm, Ф60mm

3.Weight: 2.5kgs

PD Analyzer

Feature:

1. large scale integrated circuit make the tester more stable and accurate..

2. large-screen CRT, the screen area to work effectively 100 × 80mm, can be clearly observed discharge waveform.

3. Four-channel test interface, more convenient testing.

4. using double-header shows the amount of discharge, both figures table shows PC value, while another pointer header shows PC value, the pointer table can be divided into linear and logarithmic instructions.

5. Low noise, high detection sensitivity, wide capacitance coverage area

6. Small size and light weight make it easy to carry.

Main technical index:

1. Testing scope: 6PF - 250uF

2. Sensitivity: 0.02PC

3. Amplifier band:

   (1) low-end: 10KHZ, 20KHZ, 40KHZ optional

   (2) high-end: 80KHZ, 200KHZ, 300KHZ optional

4. Amplifier adjustment:

6 coarse grade, 20db each grade;

scope of fine-tune> 20db.

5. Time window:

   (1) Window Width: 15 - 150°Adjustable  

   (2) Window Position: Each window can be rotated 0 -170°

   (3) 2 windows can be opened separately or simultaneously.

6. Discharge scale:

   (1) Analog Meter: logarithmic scale 1-10-100, error＜5%

      linear scale 0-1000 Error＜5% (based on full-scale meter)

   (2) Digital Header: 3.5 LED shows 0-100, error＜5%

7. Elliptical:

   (1) Frequency 50HZ, 100HZ, 150HZ, 200HZ, 400HZ

   (2) Elliptical rotation: 30°each grade, it can be used for 120°rotation

   (3) Display: Oval - straight line

   (4) high-frequency input voltage:13V-275V,  power:＜1VA 

8. Testing Voltmeter:

   (1) Range: 100KV (expandable)

   (2) Display: 3.5 digital voltmeter instructions

   (3) Accuracy: 5%

9. Power supply: 220V

10.Size:530×550×220mm3

11.Weight:22KG

Calibrator

1. Output charge position: 5 PC, 50PC, 500PC

2. Polarity: positive and negative alternation

3. Repetition frequency: 1.2KHz

4. Frequency range:  >±100Hz

5. Pulse rise time: <100ns

6. Pulse fall time: >100us

7. Injection capacitance: 10PF, 100PF

8. Capacitance error: Ec ≤ ±４％

9. Square wave voltage amplitude error: Eu ≤ ±４％ (50PC position)

10. Correction charge error: Eq=(Eu2+Ec2)1/2  ≤±5％

11. Battery: 6F22 9V

12.Size: 160 x 125 x 50mm3

13.Weight: 0.5kg