Maxgeek R450 Diesel Generator AVR Genset Automatic Voltage Regulator for LeroySomer Generator

Maxgeek R450 Diesel Generator AVR Genset Automatic Voltage Regulator for LeroySomer Generator

The R450 AVR is supplied in a casing designed to be mounted on a panel with dampers.
-Operating temperature: -30℃~+65℃
-Storage temperature: -5℃~+ 85℃
-Shocks on the base: 9g depending on the 3 axes
-Vibrations: less than 10Hz, 2mm half-peak amplitude 1 Hz to 100Hz; 100mm/s, above 100Hz: 8g

Note: The AVR is IPOO, it must be incorporated in an environment which ensures it IP20 protection.

Electrical Characteristics:
-Maximum power supply: 150V, 50/60Hz
-Rated overload current: 10A-10s
-Electronic protection: in the case of a short-circuit, the excitation current is reduced to a value less than 1A after 10s
-In the event of loss of voltage reference, the excitation current is reduced to a value less than 1A after 1s for AREP/SHUNT, 10s for PMG
-In the event of overexcitation, the current is reduced as indicated in the next diagram (see 3.2.1.4).
-Fuses: F1 on X1 and F2 on 2210A, 250V
-Voltage sensing
0-110V terminals=95 to 140V
0-220V terminals=170 to 260V
0-380V terminals=340 to 528 V
For other voltages, a transformer should be used
Voltage regulation: ±0.5%
Current sensing: (parallel operation): input S1, S2 intended for 1 C.T. < 2.5VA Cl1, secondary 1A or 5A.

Quadrature Droop:
Quadrature droop adjustment via potentiometer P4 within a range:
From 0 to 8% with a PF=0.8 for 400V applications
From 0 to 14% with a PF=0.8 for 240V applications
From 0 to 8% for 110V applications with a step-up transformer (ratio of 4) placed on the voltage reference.
The potentiometer P4 has a non linear response. Then, when a secondary CT is connected the effective range starts from the the second 1/3 of P4 range and the case of a SA secondary CT the effective range starts from the first 1/3. When a 5ACT is used, the adjustment range is higher, so P4 must be set to the first 1/4 (anti-clockwise) and then progressively increase it.

Stability:
Stability adjustment via potentiometer P2. Selection of rotating switch according to the machine type and the response time as indicated in paragraph 3.2.3.

Excitation limitation:
Excitation limitation adjustment via potentiometer P3 as described below. The excitation current limitation threshold in steady state is set by a potentiometer at 110% of the rated value. The adjustment is made by the operator during the on-load test at rated power by tuning the potentiometer. When the excitation current exceeds this value a counter is activated at the speed of one record per second for 90s. When this time is elapsed, the current is reduced to the value of the rated excitation current. If in the meantime the excitation current drops below hold value. the counter counts at the same speed.

Package List:
1 x Generator AVR