1.Fully discharge the tested object with discharge rod before starting up, (the discharge rod using method is: first discharge with the current-limiting discharge end, then ground terminal). Ultra low frequency connection method with two booster:When using the booster I alone (test voltage is 30 KV or less), instrument control output I must be connected to booster I, don't connect control output II. When the booster I and booster II are used in series (test voltage is 80 KV or less), instrument control output I must be connected to booster I, and instrument control output II must be connected to booster II, absolutely not inversely connection! Otherwise the instrument or tested object will be damaged.
2.Please use the STOP button and discharge by rod then shut down the power if you need to discontinue the machines which in the high pressure conditions.Otherwise it will damage the instrument!
3.Please operation it according to the screen instructions.
4.It is a normal phenomenon to see small amount of oil spill after boosting the pressure because the insulating oil in the booster is full, besides, it will not affect your use.
5.When carrying out 10KV cable test, one-phase test is strongly suggested. The voltage shall be 18KV and the frequency shall be 0.1Hz,0.05Hz,0.02Hz. The manual said load capacity is the theoretical value, the scene 10KV cable length can reach 3-8 km.
6.When carrying out 35KV cable test, one-phase test is strongly suggested. Voltage is set to 60KV (General Requirements)-78KV (according to the rules needed) and the frequency is set to 0.1Hz, 0.05Hz, and 0.02Hz. The manual said load capacity is the theoretical value, the scene 35KV cable length can reach 3-5 km.
7.In case the cable is too short(less than 500 meters), the capacitance of the test object is smaller than 0.1μF and the pressure cannot be normally boosted, please connect 0.1μF high-voltage capacitance in parallel way.
8.Keep high-voltage terminals nylon spin by the above numbers to the corresponding nylon seat, high-voltage lines to ensure good contact , no contact is good , it will cause a discharge , burned the high side . When nylon terminals tightened, pay attention to the intensity, excessive tightening may damage the nylon terminals.
9.If it is equipped with two booster ultra low frequency:When the test voltage is 30 KV or less, at this point it needs booster I to boost only, not connecting booster II. Booster number can also be set to I+II, at this point booster I and II boost in series; When test voltage is more than 30 KV, booster I and II must be used in series, see operating instructions in instruction book for connecting methods.
10.Laboratory examination timing, because DC voltage divider sampling speed is very slow, need to see more than ten cycle, in order to see the peak positive and negative voltage, the peak is the actual output voltage value.
11.Control output line connected to the booster side air plugs need to be rotated downward pressure to pull out!
12.Recommend the use of AC power supply of 220V: if you have to use a generator to supply power, because the 0.1Hz ultra low frequency is based on the power input frequency modulation, have higher requirements, to the generator requirements are: frequency 50Hz±2%, voltage 220V±5%, power is greater than 10KW, the special requirements of the generator output frequency stability, frequency changes with the load (the best use of digital frequency conversion generator), and not less than the resistive 800W load at the output end of the generator are connected with a power (such as electric stove etc.), in order to stabilize the generator speed, if the frequency is not stable, certainly not normal booster. In the whole process of increasing pressure, resistance load must use of continuous work, cannot use will automatically cut off the load resistance (such as electric kettle, electric furnace, temperature control switch after the water is boiling or temperature is reached, will be cut off automatically load), otherwise will seriously damage the instrument!
13.When turning on the power supply lamp does not light or no screen display, the insurance tube may be burned, for a safety tube is good, we are equipped with 10 insurance tube standby.
Warning: in the cable voltage withstand test, must be the core wire and the insulating layer of the physical separation, not with the other items covered in the above, otherwise it will cause the high voltage discharge, damage the instrument!!!
0.1Hz -80KV Ultra-Low Frequency High Voltage Generator
Table 1| Model | Rated Voltages | Load capacity | Fuse | Weight | Useful |
| VLF-80 | 80kV
(peak ) | 0.1Hz,≤0.5µF | 25A | Control :6
Body Boost I:30
Body Boost II:50 | 35KV and below the cable,Generator |
| 0.05Hz,≤1.0µF |
| 0.02Hz,≤2.5µF |
Please make sure that the capacitance of test products is below the instrument rated capacitance . the waveform will be influence if the capacitance of test products is too small and the instrument can not normally output when it below 0.05µF. 0.1µF capacitor in parallel to auxiliary output . below is capacitance of some instrument for your reference .
Single relatively power capacity of different Generator
Table 2| | Thermal Power | Hydropower |
Generator capacitance
(MW) | 200 | 300 | 600 | 85 | 125-150 | 300 | 400 |
Single relatively
power capacity(µF) | 0.2-0.25 | 0.18-0.26 | 0.31-0.34 | 0.69 | 1.8-1.9 | 1.7-2.5 | 2.0-2.5 |
Table 3| | capacityµF/Km |
| Voltage (kV) | 10 | 0.15 | 0.17 | 0.18 | 0.19 | 0.21 | 0.24 | 0.26 | 0.28 | 0.32 | 0.38 | - |
| 35 | - | - | - | 0.11 | 0.12 | 0.13 | 0.14 | 0.15 | 0.16 | 0.17 | 0.19 |
Cross-sectional
area (cm2 ) | 16 | 25 | 35 | 50 | 70 | 95 | 120 | 150 | 185 | 240 | 270 |
About Kolery Instrument
Located at Chongqing - a national municipality as well as southwest electromechanical manufacturing center, Kolery has many years of experience in the field of petroleum laboratory equipment solutions. Our company is mainly engaged in petrochemical analysis instruments design and produce, like karl fishcher moisture analyzer, Kinematic Viscometer, oil flash point tester, petroleum distillation machine etc. We have our own factory, and our products have good competitiveness in both of quality and price. As we understand the importance of the lab equipment quality to experimental analysis, Kolery has been committed to providing high-quality oil lab instruments to meet the customer's pursuit of accurate experimental results. We will recommend the most suitable product model based on the customer's requirements on technical parameters and experimental results. In addition to the expertise petroleum and oil analysis products, we are also familiar with the entire foreign trade process, and can quickly resolve various problems encountered by customers to ensure that trade can be proceed smoothly during the delivery period requested by customers.
FQA
Q: What are the available delivery methods?
A: Our port location: Shanghai, Chongqing or other main ports of China
Delivery methods: by sea, by air, by truck, by express
Delivery range: worldwide
Q: How long is the probable delivery date?
A: Delivery time is differs with order quantity, technical parameters requirements, etc. For most of our oil testing equipment and other lab equipment, like halogen moisture tester, spectrophotometers, the delivery date is about 3-7 business days. Please contact with us for more details.
Q: What are the available payment methods?
A: Payment methods: By T/T, L/C, Western Union, Paypal, etc.
Payment terms: Generally, for small order T/T 100% advanced, we also accept T/T 40% advanced, the balance paid by T/T when the machine is ready. For big order, we can accept 100% irrevocable L/C at sight.
Q: How long is the warranty period?
A: We warrants most of machines supplied under agreed specification against defects in material and workmanship under normal use and service for a period of 1 years from the time customer receives the goods. For some items, we offer 2 years warranty. Please contact us for details about this.
Q: What's the mini order quantity?
A: MOQ: 1 unit/set
Packing and Shipping
1. Delivery time: for most of our products, it takes about 3-5 business days. We will do all test before shipping out to make sure goods arrive you in good condition.
2. We can ship by air, by sea, by express, by land. We can also use your pointed forwarder.
3.Packing: We use export wooden case for most of our products.
Payment Term
| MOQ | 1 Set |
| Trade Terms | EXW, FOB, CIF, CFR |
| Payment Terms | T/T, L/C |
| Port of Loading | Any Port of China |
| Packing Method | Internaional Standard Wooden Case |
| Transportation Method | By Sea, By Land, By Air, By Express |
| Supply Capability | 200 Sets/Month |
After Sales Service
* The warranty period is 24 months from commissioning acceptance date on. After the warranty period is over we provide lifelong maintenance and technical service.
* We guarantee the maintenance time no more than 3 working days and response time within 8 hour.
* We build instrument service profile for our clients to record the product service and maintenance conditions.
* After instruments start service, we will pay follow-ups to collect the service conditions.
