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DC Power Supply HP-303D
The steady current power supply usually adopts double-layer winding. The effective part of the coil contains two effective sides on the left and right. The effective edge placed in the slot and close to the slot is called the upper edge, and the effective edge close to the bottom of the slot is called the lower edge. The upper and lower layers in the same tank are separated by insulating paper. The distance between the upper and lower effective edges of the same coil in the circumferential direction is the span of the coil, which is usually expressed as a multiple of the slot pitch (the distance between two adjacent slots). The span is approximately equal to a pole pitch (the distance between two adjacent magnetic poles is also often expressed as a multiple of the slot pitch). There are three types of DC armature windings: stacked windings, wave windings and frog windings. The two outlet ends of each coil are connected to the two commutating segments of the commutator. The distance between the two on the circumferential surface of the commutator is called the commutator pitch, which is represented by Ys. Different types of windings have different commutator pitches.
Product Specificaiton:
ModelHP-301D
DisplayLED
Input voltageAC 220V ± 10%, 50Hz ± 2Hz
Output voltageDC 0～30V
Output currentDC 0～3A
Voltage± (1.0% + 1digit)
Current± (2.0% + 2digits)
ProtectionCurrent limited,Short circuit
Working temp0℃~40℃
Working Relative Humidity≤90%
Storage temp-20℃~60℃
Storage Relative Humidity≤80%
Dimension275(L)×132(W)×157(H) mm
Working time8 hours continuously
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