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Brand Name
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Man, ABB, PBS, KBB, Napier MET, Weicai, JTH
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Other parts
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pls contact freely
if you need other P/N
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Engine Type
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Diesel engine,Gas engine,
Diesel Generators etc.
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Spare Type
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Cartridge, Nozzle ring , shaft, rotor complete, compressor wheel, diffuser, turbine casing , compressor casing , bearing casing, turbine blades, bearing
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Condition:
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Original , brand new, OEM, replacement, refurbished
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Applicable industry
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Marine engines,
Construction works ,oil platform
Energy & Mining etc
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Delivery time:
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Most parts are in stock, bulk order based on qty
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Payment
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T/T, L/C,D/A, Alipay, Western Union, Paypal etc.
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About the product
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Classification
1. **Adjustment of Closing Voltage**
Connect a dry cell in series with the battery and ammeter to the battery terminal of the regulator. Start the engine and gradually increase its rotational speed. Observe the ammeter pointer when the current limiter contacts close. If the pointer deflects toward the "+" side, it indicates that the closing voltage is too high, requiring a reduction in spring tension. Conversely, if the pointer deflects toward the "-" side, it suggests that the closing voltage is too low, necessitating an increase in spring tension. Repeat this process until the ammeter pointer remains stable upon contact closure, confirming an appropriate closing voltage.
2. **Adjustment of Voltage Regulation Value**
Connect two dry cells in series with the battery and ammeter to the battery terminal of the regulator. Start the engine and gradually increase its rotational speed. Monitor the ammeter pointer as the voltage regulator becomes active. If the pointer deflects toward the "+" side, it signifies that the voltage regulation value is too high, requiring a reduction in spring tension. If the pointer deflects toward the "-" side, it implies that the voltage regulation value is too low, necessitating an increase in spring tension. Continue adjusting until the ammeter pointer stabilizes during voltage regulation, confirming an appropriate regulation value.
The principle behind this adjustment method is as follows: When the dry cells and the battery are connected in series, they create a specific potential difference. The generator produces a certain voltage. A current flows when these potentials are unequal. If the potential of the dry cells exceeds that of the battery, the ammeter pointer deflects toward the "-" side; otherwise, it deflects toward the "+" side. Stability occurs only when the potentials are approximately equal, as indicated by the stationary ammeter pointer.
Inspection and Maintenance
During normal operation, the protective cover of the regulator must not be removed unless necessary. Comprehensive inspections and maintenance should be conducted every 200 hours of operation. Key tasks include:
1. Remove the protective cover and inspect the contact surfaces for dirt or burn damage. Clean the surfaces with a clean cloth if dirt is present. If erosion or unevenness compromises contact quality, smooth the surfaces using fine-grade sandpaper (e.g., "00" grade) and clean thoroughly afterward.
2. Verify the secureness of all connections and measure the resistance values of each coil. Replace or repair any damaged components promptly.
3. Test the closing voltage of the current limiter, reverse current, limit voltage of the voltage regulator, limit current of the current regulator, and gaps between various contacts. Adjust these parameters as needed to meet technical specifications.
4. After inspection and adjustment, closely monitor the charging current meter during diesel engine startup. If the meter pointer remains in the "-" position at medium or higher engine speeds, it indicates that the current limiter contacts have not opened properly. Disconnect the grounding switch immediately to prevent damage to the battery, regulator, and charging generator. If the meter pointer remains at "0" after the diesel engine reaches its rated speed, it suggests that adjustments were not performed according to technical requirements. Reinspect and readjust as necessary.
Regulator Adjustment Method for Diesel Generator Sets
During the operation of diesel generator sets, common faults include the charging current meter pointer not moving, excessive or insufficient charging current. An excessively large charging current can shorten the battery's service life, while an overly small current may fail to charge the battery adequately. When the diesel engine is operational and the charging current meter indicates an excessive current, adjust the limit spring of the regulator to reduce its length. This will decrease the current; conversely, increasing the spring length will increase the current. Carefully adjust the position during the process, ensuring gentle handling until the requirements are met.
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